ZIP CodesZIP codes in Washington County, Minnesota
Washington County, Minnesota has 18 ZIP codes in this list, from 55001 to 55129. They cover 14 places, among them Saint Paul, Stillwater, Afton and Bayport.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 55001 | Afton | 27.0 | 44.870, -92.823 |
| 55003 | Bayport | 2.1 | 45.021, -92.784 |
| 55016 | Cottage Grove | 30.1 | 44.831, -92.939 |
| 55025 | Forest Lake | 77.1 | 45.269, -92.975 |
| 55038 | Hugo | 50.5 | 45.182, -92.945 |
| 55042 | Lake Elmo | 24.9 | 44.995, -92.906 |
| 55043 | Lakeland | 3.8 | 44.939, -92.772 |
| 55047 | Marine On Saint Croix | 29.2 | 45.199, -92.826 |
| 55055 | Newport | 3.6 | 44.873, -92.999 |
| 55071 | Saint Paul Park | 5.0 | 44.834, -92.987 |
| 55073 | Scandia | 28.0 | 45.270, -92.829 |
| 55082 | Stillwater | 79.2 | 45.061, -92.847 |
| 55083 | Stillwater | no area | 45.021, -92.984 |
| 55090 | Willernie | 0.1 | 45.053, -92.957 |
| 55115 | Saint Paul | 6.1 | 45.071, -92.939 |
| 55125 | Saint Paul | 15.3 | 44.920, -92.944 |
| 55128 | Saint Paul | 11.2 | 44.991, -92.949 |
| 55129 | Saint Paul | 19.5 | 44.898, -92.923 |
The ZIP code areas of Washington County add up to about 413 square miles of land (1,069 sq km) as the Census Bureau draws them. The largest is 55082 (Stillwater), with 79.2 square miles.
Places with more than one code here: Saint Paul (4 codes), Stillwater (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Afton, MN 55001.
- 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.