{
  "schema_version": 1,
  "title": "A first regional portrait",
  "status": "provisional tract approximation; independently reproduced and reviewed by OpenAI GPT-6 Astra",
  "vintage": "2020–2024 ACS 5-year estimates",
  "checked_at": "2026-10-30",
  "timezone": "America/Los_Angeles",
  "publication_date": null,
  "center": {
    "latitude": 33.92044971,
    "longitude": -118.4153182,
    "source_url": "https://locator.lacounty.gov/lac/Location/3177269/el-segundo-city-hall",
    "method": "Published LA County facility point; not a survey-grade entrance location"
  },
  "geography": {
    "tract_count": 2087,
    "radius_miles": 25,
    "radius_meters": 40233.6,
    "selection": "2024 California TIGER/Line tract internal points within 25 miles of the center; entire selected tract values are summed",
    "label": "25-mile tract approximation",
    "exact_circle_count": false,
    "limitations": [
      "Tracts cross the circular boundary; included residents can live outside and excluded residents can live inside.",
      "Changing the center to the nearby Census address-interpolated point changes six boundary tracts.",
      "Sampling margins of error exclude geographic and model error.",
      "ACS values describe a five-year period, not an October 2026 headcount."
    ],
    "boundary_sensitivity": {
      "contained": {
        "tracts": 2024,
        "population": 7750621
      },
      "internal_point": {
        "tracts": 2087,
        "population": 8032239
      },
      "intersecting": {
        "tracts": 2134,
        "population": 8224125
      },
      "selection_spread": 473504,
      "selection_spread_percent": 5.9,
      "note": "Alternative tract selection rules, not a confidence interval or hard bounds for the exact-circle population."
    },
    "counties": {
      "los_angeles": 2034,
      "orange": 53
    },
    "boundary_source_url": "https://www2.census.gov/geo/tiger/TIGER2024/TRACT/tl_2024_06_tract.zip",
    "distance_method": "WGS84 geodesic tract internal-point selection; independently reproduced with GRS80; same 2,087 selected tracts. Reproduction scripts and selected GEOIDs at /atlas/reproduce/."
  },
  "geographies": {
    "approx_radius": "25-mile tract approximation",
    "los_angeles_county": "Los Angeles County",
    "california": "California",
    "united_states": "United States"
  },
  "metrics": [
    {
      "id": "population",
      "indicator": "Population",
      "topic": "People",
      "table": "B01001",
      "numerator_cells": [
        1
      ],
      "denominator_cell": null,
      "label": "estimate",
      "source_id": "acs2024-B01001",
      "approx_radius": {
        "count": 8032239,
        "approx_moe90_count": 28786.7
      },
      "los_angeles_county": {
        "count": 9808667,
        "approx_moe90_count": 0,
        "sampling_moe_note": "Census controlled-estimate sentinel -555555555 normalized to 0 only for variance propagation; not zero total uncertainty."
      },
      "california": {
        "count": 39287377,
        "approx_moe90_count": 0,
        "sampling_moe_note": "Census controlled-estimate sentinel -555555555 normalized to 0 only for variance propagation; not zero total uncertainty."
      },
      "united_states": {
        "count": 334922499,
        "approx_moe90_count": 0,
        "sampling_moe_note": "Census controlled-estimate sentinel -555555555 normalized to 0 only for variance propagation; not zero total uncertainty."
      }
    },
    {
      "id": "under-18",
      "indicator": "Under 18",
      "topic": "People",
      "table": "B01001",
      "numerator_cells": [
        3,
        4,
        5,
        6,
        27,
        28,
        29,
        30
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B01001",
      "approx_radius": {
        "count": 1614309,
        "approx_moe90_count": 11113.9,
        "denominator": 8032239,
        "percent": 20.1,
        "approx_moe90_percentage_points": 0.118
      },
      "los_angeles_county": {
        "count": 2019140,
        "approx_moe90_count": 6402,
        "denominator": 9808667,
        "percent": 20.59,
        "approx_moe90_percentage_points": 0.065
      },
      "california": {
        "count": 8632796,
        "approx_moe90_count": 14030.2,
        "denominator": 39287377,
        "percent": 21.97,
        "approx_moe90_percentage_points": 0.036
      },
      "united_states": {
        "count": 73517834,
        "approx_moe90_count": 38886.8,
        "denominator": 334922499,
        "percent": 21.95,
        "approx_moe90_percentage_points": 0.012
      }
    },
    {
      "id": "age-65",
      "indicator": "Age 65+",
      "topic": "People",
      "table": "B01001",
      "numerator_cells": [
        20,
        21,
        22,
        23,
        24,
        25,
        44,
        45,
        46,
        47,
        48,
        49
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B01001",
      "approx_radius": {
        "count": 1215304,
        "approx_moe90_count": 8414.7,
        "denominator": 8032239,
        "percent": 15.13,
        "approx_moe90_percentage_points": 0.09
      },
      "los_angeles_county": {
        "count": 1487700,
        "approx_moe90_count": 8172.8,
        "denominator": 9808667,
        "percent": 15.17,
        "approx_moe90_percentage_points": 0.083
      },
      "california": {
        "count": 6158371,
        "approx_moe90_count": 16360.2,
        "denominator": 39287377,
        "percent": 15.68,
        "approx_moe90_percentage_points": 0.042
      },
      "united_states": {
        "count": 57633628,
        "approx_moe90_count": 50013.3,
        "denominator": 334922499,
        "percent": 17.21,
        "approx_moe90_percentage_points": 0.015
      }
    },
    {
      "id": "households",
      "indicator": "Households",
      "topic": "Households",
      "table": "B11001",
      "numerator_cells": [
        1
      ],
      "denominator_cell": null,
      "label": "estimate",
      "source_id": "acs2024-B11001",
      "approx_radius": {
        "count": 2875634,
        "approx_moe90_count": 8571
      },
      "los_angeles_county": {
        "count": 3416449,
        "approx_moe90_count": 5011
      },
      "california": {
        "count": 13548091,
        "approx_moe90_count": 17724
      },
      "united_states": {
        "count": 129227496,
        "approx_moe90_count": 209365
      }
    },
    {
      "id": "family-households",
      "indicator": "Family households",
      "topic": "Households",
      "table": "B11001",
      "numerator_cells": [
        2
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B11001",
      "approx_radius": {
        "count": 1803668,
        "approx_moe90_count": 7722.3,
        "denominator": 2875634,
        "percent": 62.72,
        "approx_moe90_percentage_points": 0.193
      },
      "los_angeles_county": {
        "count": 2225613,
        "approx_moe90_count": 8494,
        "denominator": 3416449,
        "percent": 65.14,
        "approx_moe90_percentage_points": 0.23
      },
      "california": {
        "count": 9191176,
        "approx_moe90_count": 23875,
        "denominator": 13548091,
        "percent": 67.84,
        "approx_moe90_percentage_points": 0.152
      },
      "united_states": {
        "count": 82990528,
        "approx_moe90_count": 184702,
        "denominator": 129227496,
        "percent": 64.22,
        "approx_moe90_percentage_points": 0.098
      }
    },
    {
      "id": "one-person",
      "indicator": "One-person households",
      "topic": "Households",
      "table": "B11001",
      "numerator_cells": [
        8
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B11001",
      "approx_radius": {
        "count": 815217,
        "approx_moe90_count": 6804.1,
        "denominator": 2875634,
        "percent": 28.35,
        "approx_moe90_percentage_points": 0.221
      },
      "los_angeles_county": {
        "count": 906129,
        "approx_moe90_count": 6426,
        "denominator": 3416449,
        "percent": 26.52,
        "approx_moe90_percentage_points": 0.184
      },
      "california": {
        "count": 3289307,
        "approx_moe90_count": 13117,
        "denominator": 13548091,
        "percent": 24.28,
        "approx_moe90_percentage_points": 0.091
      },
      "united_states": {
        "count": 37140836,
        "approx_moe90_count": 69832,
        "denominator": 129227496,
        "percent": 28.74,
        "approx_moe90_percentage_points": 0.027
      }
    },
    {
      "id": "language",
      "indicator": "Language other than English at home (age 5+)",
      "topic": "Language",
      "table": "C16001",
      "numerator_cells": [
        3,
        6,
        9,
        12,
        15,
        18,
        21,
        24,
        27,
        30,
        33,
        36
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-C16001",
      "approx_radius": {
        "count": 4231323,
        "approx_moe90_count": 24764.6,
        "denominator": 7625840,
        "percent": 55.49,
        "approx_moe90_percentage_points": 0.258
      },
      "los_angeles_county": {
        "count": 5125479,
        "approx_moe90_count": 19633.4,
        "denominator": 9307645,
        "percent": 55.07,
        "approx_moe90_percentage_points": 0.211
      },
      "california": {
        "count": 16478816,
        "approx_moe90_count": 49544,
        "denominator": 37121454,
        "percent": 44.39,
        "approx_moe90_percentage_points": 0.133
      },
      "united_states": {
        "count": 70375509,
        "approx_moe90_count": 162506.1,
        "denominator": 316142548,
        "percent": 22.26,
        "approx_moe90_percentage_points": 0.051
      }
    },
    {
      "id": "spanish",
      "indicator": "Spanish at home (age 5+)",
      "topic": "Language",
      "table": "C16001",
      "numerator_cells": [
        3
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-C16001",
      "approx_radius": {
        "count": 2885068,
        "approx_moe90_count": 20243.8,
        "denominator": 7625840,
        "percent": 37.83,
        "approx_moe90_percentage_points": 0.229
      },
      "los_angeles_county": {
        "count": 3498863,
        "approx_moe90_count": 12878,
        "denominator": 9307645,
        "percent": 37.59,
        "approx_moe90_percentage_points": 0.138
      },
      "california": {
        "count": 10513931,
        "approx_moe90_count": 38294,
        "denominator": 37121454,
        "percent": 28.32,
        "approx_moe90_percentage_points": 0.103
      },
      "united_states": {
        "count": 42869908,
        "approx_moe90_count": 143809,
        "denominator": 316142548,
        "percent": 13.56,
        "approx_moe90_percentage_points": 0.045
      }
    },
    {
      "id": "education",
      "indicator": "Bachelor’s degree or higher (age 25+)",
      "topic": "Education",
      "table": "B15003",
      "numerator_cells": [
        22,
        23,
        24,
        25
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B15003",
      "approx_radius": {
        "count": 2122304,
        "approx_moe90_count": 12414.6,
        "denominator": 5704354,
        "percent": 37.2,
        "approx_moe90_percentage_points": 0.175
      },
      "los_angeles_county": {
        "count": 2491166,
        "approx_moe90_count": 12913.5,
        "denominator": 6917487,
        "percent": 36.01,
        "approx_moe90_percentage_points": 0.187
      },
      "california": {
        "count": 10039805,
        "approx_moe90_count": 33884.4,
        "denominator": 27073960,
        "percent": 37.08,
        "approx_moe90_percentage_points": 0.125
      },
      "united_states": {
        "count": 82363216,
        "approx_moe90_count": 249159.3,
        "denominator": 230807303,
        "percent": 35.68,
        "approx_moe90_percentage_points": 0.108
      }
    },
    {
      "id": "income-under-50",
      "indicator": "Household income below $50,000",
      "topic": "Income",
      "table": "B19001",
      "numerator_cells": [
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B19001",
      "approx_radius": {
        "count": 860266,
        "approx_moe90_count": 7780.3,
        "denominator": 2875634,
        "percent": 29.92,
        "approx_moe90_percentage_points": 0.255
      },
      "los_angeles_county": {
        "count": 993827,
        "approx_moe90_count": 8225,
        "denominator": 3416449,
        "percent": 29.09,
        "approx_moe90_percentage_points": 0.237
      },
      "california": {
        "count": 3495619,
        "approx_moe90_count": 16622.9,
        "denominator": 13548091,
        "percent": 25.8,
        "approx_moe90_percentage_points": 0.118
      },
      "united_states": {
        "count": 40533490,
        "approx_moe90_count": 57073.3,
        "denominator": 129227496,
        "percent": 31.37,
        "approx_moe90_percentage_points": 0.067
      }
    },
    {
      "id": "income-over-100",
      "indicator": "Household income $100,000+",
      "topic": "Income",
      "table": "B19001",
      "numerator_cells": [
        14,
        15,
        16,
        17
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B19001",
      "approx_radius": {
        "count": 1284044,
        "approx_moe90_count": 8645.3,
        "denominator": 2875634,
        "percent": 44.65,
        "approx_moe90_percentage_points": 0.27
      },
      "los_angeles_county": {
        "count": 1551560,
        "approx_moe90_count": 9818.3,
        "denominator": 3416449,
        "percent": 45.41,
        "approx_moe90_percentage_points": 0.28
      },
      "california": {
        "count": 6722135,
        "approx_moe90_count": 22316.8,
        "denominator": 13548091,
        "percent": 49.62,
        "approx_moe90_percentage_points": 0.151
      },
      "united_states": {
        "count": 52342524,
        "approx_moe90_count": 116164.7,
        "denominator": 129227496,
        "percent": 40.5,
        "approx_moe90_percentage_points": 0.061
      }
    },
    {
      "id": "owners",
      "indicator": "Owner-occupied households",
      "topic": "Housing",
      "table": "B25003",
      "numerator_cells": [
        2
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B25003",
      "approx_radius": {
        "count": 1205573,
        "approx_moe90_count": 6602.8,
        "denominator": 2875634,
        "percent": 41.92,
        "approx_moe90_percentage_points": 0.193
      },
      "los_angeles_county": {
        "count": 1567983,
        "approx_moe90_count": 9447,
        "denominator": 3416449,
        "percent": 45.9,
        "approx_moe90_percentage_points": 0.268
      },
      "california": {
        "count": 7567568,
        "approx_moe90_count": 37334,
        "denominator": 13548091,
        "percent": 55.86,
        "approx_moe90_percentage_points": 0.266
      },
      "united_states": {
        "count": 84210142,
        "approx_moe90_count": 367889,
        "denominator": 129227496,
        "percent": 65.16,
        "approx_moe90_percentage_points": 0.264
      }
    },
    {
      "id": "renters",
      "indicator": "Renter-occupied households",
      "topic": "Housing",
      "table": "B25003",
      "numerator_cells": [
        3
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B25003",
      "approx_radius": {
        "count": 1670061,
        "approx_moe90_count": 7989.2,
        "denominator": 2875634,
        "percent": 58.08,
        "approx_moe90_percentage_points": 0.217
      },
      "los_angeles_county": {
        "count": 1848466,
        "approx_moe90_count": 7040,
        "denominator": 3416449,
        "percent": 54.1,
        "approx_moe90_percentage_points": 0.19
      },
      "california": {
        "count": 5980523,
        "approx_moe90_count": 22985,
        "denominator": 13548091,
        "percent": 44.14,
        "approx_moe90_percentage_points": 0.16
      },
      "united_states": {
        "count": 45017354,
        "approx_moe90_count": 163571,
        "denominator": 129227496,
        "percent": 34.84,
        "approx_moe90_percentage_points": 0.113
      }
    },
    {
      "id": "drove-alone",
      "indicator": "Drove alone to work",
      "topic": "Commuting",
      "table": "B08301",
      "numerator_cells": [
        3
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B08301",
      "approx_radius": {
        "count": 2475893,
        "approx_moe90_count": 13698.6,
        "denominator": 3884121,
        "percent": 63.74,
        "approx_moe90_percentage_points": 0.221
      },
      "los_angeles_county": {
        "count": 3036426,
        "approx_moe90_count": 11092,
        "denominator": 4687090,
        "percent": 64.78,
        "approx_moe90_percentage_points": 0.181
      },
      "california": {
        "count": 12076803,
        "approx_moe90_count": 22658,
        "denominator": 18371933,
        "percent": 65.74,
        "approx_moe90_percentage_points": 0.091
      },
      "united_states": {
        "count": 109447738,
        "approx_moe90_count": 95797,
        "denominator": 159114094,
        "percent": 68.79,
        "approx_moe90_percentage_points": 0.097
      }
    },
    {
      "id": "public-transit",
      "indicator": "Public transportation to work",
      "topic": "Commuting",
      "table": "B08301",
      "numerator_cells": [
        10
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B08301",
      "approx_radius": {
        "count": 169598,
        "approx_moe90_count": 3847.3,
        "denominator": 3884121,
        "percent": 4.37,
        "approx_moe90_percentage_points": 0.097
      },
      "los_angeles_county": {
        "count": 183355,
        "approx_moe90_count": 4122,
        "denominator": 4687090,
        "percent": 3.91,
        "approx_moe90_percentage_points": 0.087
      },
      "california": {
        "count": 524948,
        "approx_moe90_count": 6995,
        "denominator": 18371933,
        "percent": 2.86,
        "approx_moe90_percentage_points": 0.038
      },
      "united_states": {
        "count": 5157401,
        "approx_moe90_count": 21069,
        "denominator": 159114094,
        "percent": 3.24,
        "approx_moe90_percentage_points": 0.013
      }
    },
    {
      "id": "work-home",
      "indicator": "Worked from home",
      "topic": "Commuting",
      "table": "B08301",
      "numerator_cells": [
        21
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B08301",
      "approx_radius": {
        "count": 689425,
        "approx_moe90_count": 7494.3,
        "denominator": 3884121,
        "percent": 17.75,
        "approx_moe90_percentage_points": 0.177
      },
      "los_angeles_county": {
        "count": 801832,
        "approx_moe90_count": 7394,
        "denominator": 4687090,
        "percent": 17.11,
        "approx_moe90_percentage_points": 0.153
      },
      "california": {
        "count": 3154824,
        "approx_moe90_count": 19804,
        "denominator": 18371933,
        "percent": 17.17,
        "approx_moe90_percentage_points": 0.106
      },
      "united_states": {
        "count": 24042489,
        "approx_moe90_count": 82855,
        "denominator": 159114094,
        "percent": 15.11,
        "approx_moe90_percentage_points": 0.049
      }
    },
    {
      "id": "employed",
      "indicator": "Civilian employed residents age 16+",
      "topic": "Resident employment",
      "table": "B23025",
      "numerator_cells": [
        4
      ],
      "denominator_cell": null,
      "label": "estimate",
      "source_id": "acs2024-B23025",
      "approx_radius": {
        "count": 3995164,
        "approx_moe90_count": 17000.4
      },
      "los_angeles_county": {
        "count": 4822531,
        "approx_moe90_count": 10846
      },
      "california": {
        "count": 18742898,
        "approx_moe90_count": 23401
      },
      "united_states": {
        "count": 161297155,
        "approx_moe90_count": 166767
      }
    },
    {
      "id": "labor-force",
      "indicator": "Civilian labor force as share of residents age 16+",
      "topic": "Resident employment",
      "table": "B23025",
      "numerator_cells": [
        3
      ],
      "denominator_cell": 1,
      "label": "estimate",
      "source_id": "acs2024-B23025",
      "approx_radius": {
        "count": 4316084,
        "approx_moe90_count": 18047,
        "denominator": 6611786,
        "percent": 65.28,
        "approx_moe90_percentage_points": 0.153
      },
      "los_angeles_county": {
        "count": 5200656,
        "approx_moe90_count": 9730,
        "denominator": 8033368,
        "percent": 64.74,
        "approx_moe90_percentage_points": 0.12
      },
      "california": {
        "count": 20068466,
        "approx_moe90_count": 20319,
        "denominator": 31699656,
        "percent": 63.31,
        "approx_moe90_percentage_points": 0.063
      },
      "united_states": {
        "count": 170199520,
        "approx_moe90_count": 141436,
        "denominator": 270181636,
        "percent": 62.99,
        "approx_moe90_percentage_points": 0.052
      }
    },
    {
      "id": "unemployment",
      "indicator": "Unemployment share of civilian labor force",
      "topic": "Resident employment",
      "table": "B23025",
      "numerator_cells": [
        5
      ],
      "denominator_cell": 3,
      "label": "estimate",
      "source_id": "acs2024-B23025",
      "approx_radius": {
        "count": 320920,
        "approx_moe90_count": 5302.3,
        "denominator": 4316084,
        "percent": 7.44,
        "approx_moe90_percentage_points": 0.119
      },
      "los_angeles_county": {
        "count": 378125,
        "approx_moe90_count": 5780,
        "denominator": 5200656,
        "percent": 7.27,
        "approx_moe90_percentage_points": 0.11
      },
      "california": {
        "count": 1325568,
        "approx_moe90_count": 10867,
        "denominator": 20068466,
        "percent": 6.61,
        "approx_moe90_percentage_points": 0.054
      },
      "united_states": {
        "count": 8902365,
        "approx_moe90_count": 38976,
        "denominator": 170199520,
        "percent": 5.23,
        "approx_moe90_percentage_points": 0.022
      }
    }
  ],
  "sources": [
    {
      "id": "acs2024-B01001",
      "publisher": "U.S. Census Bureau",
      "table": "B01001",
      "title": "Sex by Age",
      "universe": "Total population",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/B01001.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01001.dat",
      "quote": "Sex by Age",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    },
    {
      "id": "acs2024-B11001",
      "publisher": "U.S. Census Bureau",
      "table": "B11001",
      "title": "Household Type (Including Living Alone)",
      "universe": "Households",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/B11001.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b11001.dat",
      "quote": "Household Type (Including Living Alone)",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    },
    {
      "id": "acs2024-C16001",
      "publisher": "U.S. Census Bureau",
      "table": "C16001",
      "title": "Language Spoken at Home for the Population 5 Years and Over",
      "universe": "Population age 5+",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/C16001.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat",
      "quote": "Language Spoken at Home for the Population 5 Years and Over",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    },
    {
      "id": "acs2024-B15003",
      "publisher": "U.S. Census Bureau",
      "table": "B15003",
      "title": "Educational Attainment for the Population 25 Years and Over",
      "universe": "Population age 25+",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/B15003.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat",
      "quote": "Educational Attainment for the Population 25 Years and Over",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    },
    {
      "id": "acs2024-B19001",
      "publisher": "U.S. Census Bureau",
      "table": "B19001",
      "title": "Household Income in the Past 12 Months (in 2024 Inflation-Adjusted Dollars)",
      "universe": "Households; income in 2024 inflation-adjusted dollars",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/B19001.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19001.dat",
      "quote": "Household Income in the Past 12 Months (in 2024 Inflation-Adjusted Dollars)",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    },
    {
      "id": "acs2024-B25003",
      "publisher": "U.S. Census Bureau",
      "table": "B25003",
      "title": "Tenure",
      "universe": "Occupied housing units",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/B25003.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat",
      "quote": "Tenure",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    },
    {
      "id": "acs2024-B08301",
      "publisher": "U.S. Census Bureau",
      "table": "B08301",
      "title": "Means of Transportation to Work",
      "universe": "Workers age 16+",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/B08301.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b08301.dat",
      "quote": "Means of Transportation to Work",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    },
    {
      "id": "acs2024-B23025",
      "publisher": "U.S. Census Bureau",
      "table": "B23025",
      "title": "Employment Status for the Population 16 Years and Over",
      "universe": "Population age 16+",
      "url": "https://api.census.gov/data/2024/acs/acs5/groups/B23025.html",
      "data_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b23025.dat",
      "quote": "Employment Status for the Population 16 Years and Over",
      "checked_at": "2026-10-30",
      "publication_date": null,
      "observation_period": "2020–2024",
      "release_date": "2026-01-29"
    }
  ],
  "method_source": {
    "url": "https://www.census.gov/programs-surveys/acs/data/summary-file.html",
    "publisher": "U.S. Census Bureau",
    "quote": "The Table-Based ACS Summary File contains three file types:",
    "publication_date": "2026-10-16",
    "checked_at": "2026-10-30"
  },
  "workplace_jobs": {
    "status": "block-point approximation; independently reproduced and reviewed by OpenAI GPT-6 Astra",
    "label": "estimate",
    "dataset": "LEHD Origin-Destination Employment Statistics (LODES) 8",
    "vintage": 2023,
    "job_type": "JT01",
    "segment": "S000",
    "count": 3691926,
    "residence_jobs": 3276519,
    "geography": {
      "label": "25-mile block-point approximation",
      "selected_blocks": 70149,
      "center": {
        "latitude": 33.92044971,
        "longitude": -118.4153182,
        "source_url": "https://locator.lacounty.gov/lac/Location/3177269/el-segundo-city-hall",
        "method": "Published LA County facility point; not a survey-grade entrance location"
      },
      "note": "Whole Census blocks selected using their crosswalk points within 25 miles of the documented center; not the ACS tract selection."
    },
    "universe": "Covered primary jobs in the beginning-of-second-quarter employment frame; one highest-paying job per covered worker",
    "sources": [
      {
        "id": "lodes-ca-crosswalk",
        "title": "California LODES geography crosswalk",
        "publisher": "U.S. Census Bureau",
        "url": "https://lehd.ces.census.gov/data/lodes/LODES8/ca/ca_xwalk.csv.gz",
        "checked_at": "2026-10-30",
        "publication_date": null
      },
      {
        "id": "lodes-ca-wac-2023-jt01",
        "title": "2023 California primary jobs by workplace block",
        "publisher": "U.S. Census Bureau",
        "url": "https://lehd.ces.census.gov/data/lodes/LODES8/ca/wac/ca_wac_S000_JT01_2023.csv.gz",
        "checked_at": "2026-10-30",
        "publication_date": null
      },
      {
        "id": "lodes-ca-rac-2023-jt01",
        "title": "2023 California primary jobs by residence block",
        "publisher": "U.S. Census Bureau",
        "url": "https://lehd.ces.census.gov/data/lodes/LODES8/ca/rac/ca_rac_S000_JT01_2023.csv.gz",
        "checked_at": "2026-10-30",
        "publication_date": null
      },
      {
        "id": "lodes-definition",
        "title": "OnTheMap job types",
        "publisher": "U.S. Census Bureau",
        "url": "https://onthemap.ces.census.gov/cgi-bin/mobile_help.py?q=tot_job_type",
        "quote": "A primary job is the highest paying job for an individual worker.",
        "checked_at": "2026-10-30",
        "publication_date": null
      },
      {
        "id": "lodes-structure",
        "title": "LODES dataset structure, version 8.4",
        "publisher": "U.S. Census Bureau",
        "url": "https://lehd.ces.census.gov/doc/help/onthemap/LODESTechDoc.pdf",
        "quote": "jobs are totaled by work Census Block",
        "checked_at": "2026-10-30",
        "publication_date": "2025-12-03"
      }
    ],
    "concentrated_sectors": [
      {
        "id": "information",
        "sector": "Information",
        "naics": "51",
        "field": "CNS09",
        "count": 267352,
        "regional_share_percent": 7.24,
        "california_share_percent": 3.99,
        "location_quotient": 1.81
      },
      {
        "id": "arts",
        "sector": "Arts, entertainment and recreation",
        "naics": "71",
        "field": "CNS17",
        "count": 88017,
        "regional_share_percent": 2.38,
        "california_share_percent": 1.89,
        "location_quotient": 1.26
      },
      {
        "id": "wholesale",
        "sector": "Wholesale trade",
        "naics": "42",
        "field": "CNS06",
        "count": 171919,
        "regional_share_percent": 4.66,
        "california_share_percent": 3.94,
        "location_quotient": 1.18
      }
    ],
    "largest_sector": {
      "sector": "Health care and social assistance",
      "naics": "62",
      "field": "CNS16",
      "count": 583848
    },
    "comparison": "California primary workplace jobs in the same 2023 WAC file and job type",
    "location_quotient_definition": "Regional industry share of covered primary workplace jobs divided by California industry share; 1.00 means equal shares.",
    "sampling_moe": null,
    "sampling_moe_status": "Not an ACS sample estimate; ACS-style sampling margins are not supplied for these modeled administrative data.",
    "origin_destination_analysis_performed": false,
    "research_checks_reported": {
      "wac_nonzero_rows": 50724,
      "rac_nonzero_rows": 57807,
      "unmatched_crosswalk_rows": 0,
      "official_sha256_checks": "Original researcher reports official checksum verification; independent reviewer records local input hashes and reproduces aggregates, without an independent official-manifest comparison."
    },
    "limitations": [
      "Not all jobs, job vacancies, current attendance or daytime population.",
      "ACS residents and LODES jobs have different universes, geographies and time periods; do not add them together.",
      "The residence and workplace counts are not a commuter-flow calculation; no origin-destination analysis was performed.",
      "Block-point selection and administrative-data modeling introduce uncertainty not captured by an ACS sampling margin.",
      "Industry concentration describes the regional job mix, not job quality, hiring demand or a causal advantage."
    ]
  },
  "notes": [
    "Counts and uncertainty were transferred from the research calculation. Reproducibility artifacts must accompany publication.",
    "No tract medians are averaged. Income uses bands, not a regional median.",
    "Controlled source-cell MOE sentinels are normalized to zero only for variance propagation; this does not establish zero total uncertainty.",
    "Comparisons are descriptive; no statistical significance tests or causal claims are made."
  ],
  "release_date": "2026-01-29",
  "release_source": {
    "url": "https://www.census.gov/programs-surveys/acs/news/data-releases/2024/release.html",
    "publisher": "U.S. Census Bureau",
    "quote": "2020-2024 ACS 5-Year Estimates Released January 29",
    "checked_at": "2026-10-30",
    "release_date": "2026-01-29"
  },
  "independent_review": {
    "model": "gpt-6-astra",
    "verdict": "supported",
    "url": "https://elsegundo.xyz/atlas/reproduce/review.json",
    "reproduction": "https://elsegundo.xyz/atlas/reproduce/README.md"
  }
}