American Community Survey 5-Year

• Median Household Income — median household income for every U.S. block group
• Household Income Brackets — 16 income brackets with household counts, paired margins of error, and totals
• Age & Sex — population by age bracket and sex for every U.S. block group
• Race — counts by single-race category plus “two or more races”
• Block group geography on every table, joinable to any place-based dataset on Dewey
• Bulk download or query in place, with documentation for every column

The American Community Survey is the Census Bureau's most detailed source of information on the nation's people and housing. It has run continuously since 2005, collecting social, economic, housing, and demographic data from a sample of households across the 50 states, the District of Columbia, and Puerto Rico.

It spans more than 40 topics — education, employment, income, housing, transportation — and releases new estimates every year. Local officials, planners, and researchers use it to allocate funding and decide where to site public services.

Five-year estimates pool responses across five years of collection. That trades currency for precision, which is what makes analysis at block group level possible at all.