USPS Location Lookup

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

Search USPS locations

Free lookup of live USPS data. No signup needed.
98,859Locations
58States Covered
USCoverage 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 State58 states

StateLocations
New York13,972
California10,819
Pennsylvania8,914
Massachusetts6,449
Illinois6,353
Ohio5,019
New Jersey4,784
Florida3,635
Maryland3,570
Michigan3,396
Texas2,842
Connecticut2,225
Washington1,803
Missouri1,801
Virginia1,653
Indiana1,610
North Carolina1,567
Minnesota1,488
Arizona1,487
Colorado1,461

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

Wisconsin1,459 Georgia1,060 Oregon1,026 New Hampshire932 Maine809 Rhode Island776 Alabama688 South Carolina631 Iowa630 West Virginia609 Delaware445 Tennessee445 Vermont438 Nevada410 Kentucky409 Louisiana379 Nebraska357 Hawaii343 Arkansas312 Kansas311 Utah262 Puerto Rico245 New Mexico205 Montana150 Oklahoma138 Idaho123 District of Columbia101 Mississippi101 Alaska72 North Dakota71 U.S. Virgin Islands29 Wyoming16 South Dakota14 Guam7

USPS Location API

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

USPS API Documentation →

Get Started Free

Get an API key and start integrating USPS location data into your application. API access starts with the Starter plan.

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New to LTL freight?

Learn how LTL carriers like USPS price and route freight - and how NMFC freight class affects your shipping cost.

How LTL shipping works →What is NMFC? →

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 on this page is free with no signup. The same data is available through the API from the Starter plan up; higher plans raise the monthly quota.