ZIP CodesZIP codes in Polk County, Minnesota
Polk County, Minnesota has 16 ZIP codes in this list, from 56517 to 56736. They cover 16 places, among them Beltrami, Climax, Erskine and Fertile.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 56517 | Beltrami | 97.1 | 47.572, -96.455 |
| 56523 | Climax | 78.8 | 47.684, -96.871 |
| 56535 | Erskine | 88.8 | 47.662, -96.012 |
| 56540 | Fertile | 174 | 47.536, -96.280 |
| 56542 | Fosston | 180 | 47.582, -95.743 |
| 56556 | Mcintosh | 103 | 47.652, -95.886 |
| 56568 | Nielsville | 29.7 | 47.537, -96.757 |
| 56592 | Winger | 58.9 | 47.538, -95.994 |
| 56646 | Gully | 75.5 | 47.770, -95.641 |
| 56651 | Lengby | 70.9 | 47.516, -95.636 |
| 56684 | Trail | 124 | 47.748, -95.761 |
| 56716 | Crookston | 325 | 47.780, -96.593 |
| 56721 | East Grand Forks | 192 | 47.932, -97.021 |
| 56722 | Euclid | 135 | 47.984, -96.643 |
| 56723 | Fisher | 121 | 47.800, -96.802 |
| 56736 | Mentor | 110 | 47.658, -96.178 |
The ZIP code areas of Polk County add up to about 1,964 square miles of land (5,087 sq km) as the Census Bureau draws them. The largest is 56716 (Crookston), with 325 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Beltrami, MN 56517.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.