{
  "generated_at": "2026-05-24T21:39:33.180781+00:00",
  "source_year": 2024,
  "state_fips": "53",
  "counties": {
    "033": "King",
    "061": "Snohomish",
    "035": "Kitsap",
    "053": "Pierce"
  },
  "acs_table": "B01001",
  "acs_source_url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01001.dat",
  "geometry_source_url": "https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Tracts_Blocks/MapServer/8/query",
  "geometry_layer": "TIGERweb Tracts_Blocks MapServer layer 8, ACS 2024 Census Block Groups",
  "estimated_block_acres": 2.5,
  "row_count": 2928,
  "geojson_feature_count": 2928,
  "missing_geometry_count": 0,
  "notes": [
    "Block groups are neighborhood-scale clusters of census blocks, not individual city blocks.",
    "ACS 5-year estimates are current-ish but sample-based. Use for neighborhood context, not exact block-level counts.",
    "estimated_kids_per_block is children_per_acre multiplied by a fixed 2.5 land-acre typical-block assumption."
  ]
}