U.S. Census Bureau ACS 5-Year Median Household Income (Block Group)

Median household income (`median_hh_income`, in nominal dollars of the release year) per block group, plus its margin of error. The Census sentinel value `-666666666` (small-population suppression) is mapped to NULL. Income is top-coded at $250,001 per Census convention.

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Licensing and redistribution. U.S. Census Bureau data products are works of the United States Government and are not subject to copyright: "Copyright protection under this title is not available for any work of the United States Government" (17 U.S.C. § 105). Dewey redistributes this processed extract on that public-domain basis. The Census Bureau requests (but does not require) citation, and prohibits using the data to "identify any individual person, household, business or other entity" — a confidentiality obligation that passes through to users of this dataset. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.