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USPS Location Lookup

Look up United States Postal Service locations by state or ZIP, or query them with the USPS API.

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98,859
Locations
58
States Covered
US
Coverage Scope

The United States Postal Service operates the largest retail network in the country, with post offices, self-service kiosks, and collection points nationwide.

Locations by State

State Locations
New York 13,972
California 10,819
Pennsylvania 8,914
Massachusetts 6,449
Illinois 6,353
Ohio 5,019
New Jersey 4,784
Florida 3,635
Maryland 3,570
Michigan 3,396
Texas 2,842
Connecticut 2,225
Washington 1,803
Missouri 1,801
Virginia 1,653
Indiana 1,610
North Carolina 1,567
Minnesota 1,488
Arizona 1,487
Colorado 1,461
Showing the top 20 of 58 states by location count; the rest are listed below. Use the API for full coverage data →

All other states

Wisconsin (1,459) Georgia (1,060) Oregon (1,026) New Hampshire (932) Maine (809) Rhode Island (776) Alabama (688) South Carolina (631) Iowa (630) West Virginia (609) Delaware (445) Tennessee (445) Vermont (438) Nevada (410) Kentucky (409) Louisiana (379) Nebraska (357) Hawaii (343) Arkansas (312) Kansas (311) Utah (262) Puerto Rico (245) New Mexico (205) Montana (150) Oklahoma (138) Idaho (123) District of Columbia (101) Mississippi (101) Alaska (72) North Dakota (71) U.S. Virgin Islands (29) Wyoming (16) South Dakota (14) Guam (7)

USPS Location API

Access USPS location data programmatically. ZIP code lookup, state coverage, batch queries, and more.

USPS API Documentation

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USPS Location Lookup - FAQ

How many USPS locations are there?

FreightAPIs indexes 98,859 USPS locations across 58 states in the United States. You can look any of them up by state or ZIP code, free and instantly.

How do I find a USPS location?

Search this page by state, ZIP code, or name, or query the USPS location API for the same data programmatically - address, contact, and service coverage are returned for every location.

Is the USPS location lookup free?

Yes. USPS locations lookup is free on every plan, including the Free tier (20 API calls/month). Paid plans raise the monthly quota for higher-volume queries.