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Post Offices in the United States

U.S. Post Office locations with address, ZIP code, holiday closures and a link to official USPS hours. 27,477 post offices · Data as of 09/23/2026

Post Offices in the U.S.
27,477
As of 09/23/2026
Most in one state
Texas
1,850 post offices
States and territories
56
With at least one post office

Choose a state

Darker states have more post offices. Select a state for its full list by city and county.

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States with the most post offices

  1. 1Texas1,850
  2. 2California1,437
  3. 3Illinois1,426
  4. 4New York1,220
  5. 5Ohio1,195

Frequently asked questions

How many post offices are in the U.S.?
Our data lists 27,477 post offices across all 50 states, D.C. and U.S. territories, as of 09/23/2026.
Which state has the most post offices?
Texas has the most with 1,850, followed by California (1,437), Illinois (1,426), New York (1,220).
Where does this post office 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.