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Emergency Rooms in the United States

Hospitals with an emergency department, with Medicare ratings and timely care measures such as ER wait times. 4,495 emergency rooms · Data as of 08/12/2026

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Darker states have more emergency rooms

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U.S. territories

Frequently asked questions

How many emergency rooms are in the U.S.?
Our data lists 4,495 emergency rooms across all 50 states, D.C. and U.S. territories, as of 08/12/2026.
Which state has the most emergency rooms?
Texas has the most with 390, followed by California (284), Florida (184), Illinois (175).
Where does this emergency room data come from?
It comes from official public data published by U.S. government agencies. Each page lists its source and the date it was last updated.