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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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 |
|---|---|
| NY | 13,972 |
| CA | 10,819 |
| PA | 8,914 |
| MA | 6,449 |
| IL | 6,353 |
| OH | 5,019 |
| NJ | 4,784 |
| FL | 3,635 |
| MD | 3,570 |
| MI | 3,396 |
| TX | 2,842 |
| CT | 2,225 |
| WA | 1,803 |
| MO | 1,801 |
| VA | 1,653 |
| IN | 1,610 |
| NC | 1,567 |
| MN | 1,488 |
| AZ | 1,487 |
| CO | 1,461 |
USPS Location API
Access USPS location data programmatically. ZIP code lookup, state coverage, batch queries, and more.
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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.