ZIP CodesZIP codes in St. Croix County, Wisconsin
St. Croix County, Wisconsin has 11 ZIP codes in this list, from 54002 to 54082. They cover 11 places, among them Baldwin, Deer Park, Glenwood City and Hammond.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 54002 | Baldwin | 77.7 | 44.966, -92.365 |
| 54007 | Deer Park | 45.0 | 45.169, -92.359 |
| 54013 | Glenwood City | 105 | 45.062, -92.182 |
| 54015 | Hammond | 35.0 | 44.967, -92.447 |
| 54016 | Hudson | 67.1 | 44.984, -92.727 |
| 54017 | New Richmond | 139 | 45.123, -92.537 |
| 54023 | Roberts | 45.0 | 44.987, -92.560 |
| 54025 | Somerset | 50.1 | 45.133, -92.686 |
| 54027 | Wilson | 32.5 | 44.947, -92.197 |
| 54028 | Woodville | 37.5 | 44.941, -92.285 |
| 54082 | Houlton | 12.4 | 45.066, -92.757 |
The ZIP code areas of St. Croix County add up to about 646 square miles of land (1,674 sq km) as the Census Bureau draws them. The largest is 54017 (New Richmond), with 139 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Baldwin, WI 54002.
- 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.