Data sources
Updated November 2026
All data comes from U.S. federal statistical agencies and is in the public domain. We download it in bulk, check it, and compute every figure when the site is built.
| Source | Vintage used | Refresh | Licence |
|---|---|---|---|
| BEA Regional Price Parities (SARPP, MARPP, PARPP) https://apps.bea.gov/regional/zip/ | 2024 | Annual (December) | Public domain (U.S. Government work) |
| U.S. Census Bureau, American Community Survey 5-year estimates (table-based Summary File) https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-{table}.dat | 2020-2024 | Annual (December) | Public domain (U.S. Government work) |
| U.S. Census Bureau Gazetteer files + 2023 CBSA delineation (list 1) https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2026_Gazetteer/2026_Gaz_place_national.zip ; https://www2.census.gov/programs-surveys/metro-micro/geographies/reference-files/2023/delineation-files/list1_2023.xlsx | Gazetteer 2026; delineation July 2023 | Annual | Public domain (U.S. Government work) |
| U.S. Bureau of Labor Statistics, Consumer Expenditure Survey (API v1) https://api.bls.gov/publicAPI/v1/timeseries/data/ | 2025 | Annual (September) | Public domain (U.S. Government work) |
| U.S. Bureau of Labor Statistics, CPI-U (NSA), public API v1 https://api.bls.gov/publicAPI/v1/timeseries/data/ | 2026-09 | Monthly | Public domain (U.S. Government work) |
| U.S. Energy Information Administration, Form EIA-861M sales and revenue (residential) https://www.eia.gov/electricity/data/eia861m/xls/sales_revenue.xlsx | 2026-08 | Monthly (~8-week lag) | Public domain (U.S. Government work) |
| U.S. Energy Information Administration, weekly retail gasoline prices (regular, all formulations) https://www.eia.gov/dnav/pet/xls/PET_PRI_GND_A_EPMR_PTE_DPGAL_W.xls | 2026-11-02 | Weekly (Mondays) | Public domain (U.S. Government work) |
| EIA Residential Energy Consumption Survey 2020, table CE2.1 https://www.eia.gov/consumption/residential/data/2020/c&e/xls/ce2.1.xlsx | 2020 (released 2023, revised Mar 2024) | Every ~5 years | Public domain (U.S. Government work) |