U.S. Census ACS PUMS
Ask it in words or explore it on the map — two ways into the same weighted Census microdata, for every state and 2,462 sub-state areas.
- Interactive maps — Color every state and 2,462 sub-state areas by income, race, housing, and more.
- Build segments — Cross-tab any variables into a live, correctly weighted population estimate.
- Compare & export — Compare geographies, read the underlying numbers, and export any view as CSV.
How many 25–44 healthcare workers Black women in Queens, NY who rent?
Map explorer
See every place, by any measure
Color all 50 states + DC and 2,462 PUMAs by income, race, education, housing, commute, and more — then drill from the nation down into any neighborhood-scale area, on real Census geography.
- 29 variables across 6 themes
- State → PUMA drill-down
- Year-over-year comparison
Query builder
Cross-tabulate anything
Stack any variables — age, race, employment, tenure, income, education — into one population and get a correctly weighted estimate the published Census tables never offered, mapped and ranked by area.
- Any combination of variables
- Live, weighted population counts
- Top areas, ranked
Understanding the data
What is PUMS data?
PUMS — the U.S. Census Bureau's Public Use Microdata Sample— is the richest, most flexible view of who lives in America. It's also notoriously hard to use: gigabytes of numeric-coded records with statistical weights. PUMSdata turns it into something you can explore in seconds.
Individual-level microdata
Instead of pre-computed totals, PUMS gives de-identified records for a sample of people and housing units — each with hundreds of variables. That's what lets you ask questions the published tables never answered.
Cross-tabulate anything
Because it's record-level, you can combine any variables — e.g. renters, aged 25–34, with a bachelor's degree, below poverty — and get a real, weighted estimate. No other free tool makes this point-and-click.
Neighborhood-scale geography
Every record is tagged to a state and a PUMA (Public Use Microdata Area, ~100,000+ people), so you can see how places differ well below the state level.
Statistically weighted
Each record carries a survey weight, so a sample of ~3.4M people scales up to represent all 340M+ Americans. We apply those weights for you — every number is a proper population estimate.
Free while we're in beta
Full access to maps, custom segments, historical years, saved work, and export — no card, no catch. Create an account and tell us what you think.
Create your free accountFrequently asked questions
What is PUMS data?+
PUMS — the Public Use Microdata Sample — is published by the U.S. Census Bureau from the American Community Survey (ACS). It's a de-identified, record-level sample of people and housing units, weighted to represent the whole population, with hundreds of variables per record.
How is this different from data.census.gov?+
Census tables are pre-aggregated — you get the totals the Bureau chose to publish. PUMS is the underlying microdata, so you can cross-reference any variables and get sub-state (PUMA) detail. PUMSdata makes that instant and visual instead of a data-science project.
Is the data official and accurate?+
Yes — it comes directly from the U.S. Census Bureau's ACS PUMS. These are survey-based estimates subject to sampling error, and we weight them correctly. We are an independent product and are not affiliated with or endorsed by the Census Bureau.
What years and geographies are covered?+
The current year (2024 1-Year ACS) plus historical years (2023 and earlier) for year-over-year comparison. Coverage is all 50 states + DC and 2,462 PUMAs.
Is anyone's personal information exposed?+
No. PUMS is de-identified by the Census Bureau and cannot identify individuals; attempting to re-identify anyone is prohibited. We also never sell your account data — see our Privacy Policy.
Can I export the numbers?+
Yes — export the data behind any view as CSV, Excel, or an image for use in your own analysis, reports, or articles.
How much does it cost?+
It's completely free while we're in beta — just create a free account to get full access to maps, segments, historical years, saved work, and export. We'd love your feedback while you're in there.
Still have questions? Email support@pumsdata.com.
Browse by place
Census PUMS data for every state
Jump into the demographics, income, education, and housing profile for any state — built from the 3,422,888-person 2024 ACS PUMS sample. Or browse all states & PUMAs →