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State and Federal Prisons Map

Where every state and federal prison is, who runs it and how many people it holds.

The map shows 1,021 state and federal prisons. Texas has the most (103), then Florida (85) and Georgia (84).

See it on the mapNeighborhood reportGet the data (API)
1,021state and federal prisons on the map
Texashas the most (103)
50of the 50 states, DC and Puerto Rico have at least one
785,928people held (latest counts)
State and federal prisons on the Map the Block map of the United StatesOpen the live map →

🏛️Prisons by level

State903
Federal118

🔒States with the most state and federal prisons

Texas103
Florida85
Georgia84
North Carolina57
New York43
California40
Wisconsin37
Alabama34
Virginia34
South Carolina29

🔎About this data

How many people each prison holds, from each agency's own latest report: the Bureau of Prisons weekly, states monthly to yearly. Bigger circle = more people. Florida, Texas, West Virginia, Missouri, New Mexico and Arizona don't publish counts per prison, so those show capacity. Some states report monthly averages instead of a single day. No individual records are shown.

Source: Federal Bureau of Prisons; each state's Department of Corrections population reports (dates in each popup); locations from agency addresses (U.S. Census geocoder) and OpenStreetMap

Coverage: All federal prisons and state prisons in 47 states (not yet: Nevada, New Hampshire; some prisons in Illinois, Arizona, Georgia and Texas couldn't be placed)

How it was checked: Federal and California counts add up exactly to their published totals, and 36 of 39 states that publish both facility counts and a total match within 1% (the rest are explained gaps such as contract beds). 92% of state prison locations are confirmed by a mapped prison within 3 km.

💬Questions and answers

How many state and federal prisons are there in the United States?

The map shows 1,021 state and federal prisons. Texas has the most (103), then Florida (85) and Georgia (84).

Where does this data come from?

Federal Bureau of Prisons; each state's Department of Corrections population reports (dates in each popup); locations from agency addresses (U.S. Census geocoder) and OpenStreetMap. Coverage: All federal prisons and state prisons in 47 states (not yet: Nevada, New Hampshire; some prisons in Illinois, Arizona, Georgia and Texas couldn't be placed).

Is the map free to use?

Yes. Map the Block is free, with no ads or paywall. You may quote figures with credit to Map the Block (maptheblock.com); for bulk or commercial use there is a Data API.

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Numbers computed from the live map data on October 18, 2026. Free to quote with credit to “Map the Block (maptheblock.com)”; see reuse terms.