Public Dataset

U.S. Census Bureau API

The Census Bureau API provides programmatic access to over 1,700 datasets including the American Community Survey (ACS), Decennial Census, Current Population Survey, County Business Patterns, Economic Census, and Population Estimates. Data covers demographics, housing, income, employment, business patterns, and economic indicators at the national, state, county, tract, and ZIP code level. A free API key is required. Data is public domain and not subject to copyright.

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What You Can Query

You can query the ACS 5-year and 1-year surveys, Decennial Census, and County Business Patterns for variables like total population, median household income, median home value, and rent — filterable by state, county, census tract, and ZIP code tabulation area.

What You Can Do

Querying demographic profiles by state, county, or ZIP code

Analyzing income distribution and poverty rates across geographies

Tracking population growth and migration trends

Studying housing characteristics and occupancy rates

Exploring county-level business patterns by industry

Comparing educational attainment across demographic groups

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