DataUSA

DataUSA aggregates US public data (Census ACS, BLS, and others) behind one API. It was the single most-requested source in the 2026 wiki-swarm tasks: workforce by occupation and degree, wages by age, poverty by county, foreign-born population by city.

API shape

GET https://datausa.io/api/data?drilldowns=DIMENSION&measures=MEASURE&year=YEAR

• Example dimensions: State, County, Place, Nation, Detailed Occupation, Degree, Age.
• Example measures: Population, Total Population, Poverty Rate, Average Wage, Workforce by Occupation and Gender.
• Add &geo=GEOID to filter (state GEOIDs look like 04000US48, counties like 05000US48141).
• Responses are JSON with data (rows) and source (dataset and vintage). Record the vintage from source, not from the year you asked for.

Quirks

• The web page for a place often shows a different vintage than the API default. Always cite the vintage from the response.
• Occupation and degree crossings come from ACS PUMS and are estimates with large margins for small places.
• "Poverty Rate" is a percentage (12.3 means 12.3%).

Verified examples

Add rows here with the exact request, the answer, and the fetch date. See Who has done X.

Verify this page: the DataUSA API has changed before. If a request above fails, fix it and note the date.