St. Croix County, Wisconsin ZIP codes
11 ZIP codes are in St. Croix County, plus 7 that cross in from neighboring counties. It's part of the Minneapolis-St. Paul-Bloomington, MN-WI metro area.
- ZIP codes
- 11
- Population in these ZIPs
- 87,490
- Avg. median income
- $103,400population-weighted
- Cities & towns
- 11
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in St. Croix County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 54002 | Baldwin | 6,872 | $88,275 | $343,700 |
| 54007 | Deer Park | 1,175 | $85,398 | $339,400 |
| 54013 | Glenwood City | 3,443 | $87,500 | $319,100 |
| 54015 | Hammond | 4,086 | $114,293 | $381,600 |
| 54016 | Hudson | 33,398 | $113,085 | $491,100 |
| 54017 | New Richmond | 20,366 | $98,571 | $379,100 |
| 54023 | Roberts | 4,620 | $108,466 | $410,200 |
| 54025 | Somerset | 7,612 | $86,930 | $416,700 |
| 54027 | Wilson | 1,154 | $100,750 | $387,700 |
| 54028 | Woodville | 2,574 | $85,341 | $336,700 |
| 54082 | Houlton | 2,190 | $131,146 | $542,500 |
ZIP codes partly in St. Croix County
These ZIP codes are mostly in a neighboring county but cover part of St. Croix County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 54005 | Clear Lake | Polk County | 3,264 | $87,813 | $303,000 |
| 54020 | Osceola | Polk County | 7,687 | $74,702 | $360,400 |
| 54022 | River Falls | Pierce County | 24,789 | $96,642 | $413,900 |
| 54026 | Star Prairie | Polk County | 2,361 | $95,833 | $389,100 |
| 54734 | Downing | Dunn County | 772 | $71,500 | $280,000 |
| 54749 | Knapp | Dunn County | 1,410 | $77,903 | $299,800 |
| 54767 | Spring Valley | Pierce County | 3,352 | $83,917 | $322,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in St. Croix County
Nearby counties
Frequently asked questions
How many ZIP codes are in St. Croix County, Wisconsin?
11 ZIP codes are mainly in St. Croix County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in St. Croix County?
ZIP codes in St. Croix County use the city names Baldwin, Deer Park, Glenwood City, Hammond, Houlton, Hudson, New Richmond, Roberts, Somerset, Wilson and Woodville.
What metro area is St. Croix County in?
St. Croix County is part of the Minneapolis-St. Paul-Bloomington, MN-WI metropolitan statistical area.