St. Croix County GIS Maps
St. Croix County, Wisconsin, has 93,536 residents across 54,894 parcels and covers 722.4 square miles. The population grew 10.9% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for St. Croix County is 55109.
River Falls is the county's largest population center. St. Croix County also includes 11 zip codes, 11 public school districts and 62 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show parcel data, population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.
St. Croix County Trends
- Population
- 93,536▴
- Median Home Value
- $349,700▴
- K-12 Enrollment
- 21,539▾
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
St. Croix County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
St. Croix County Parcels
St Croix County has 54,894 mapped parcels covering 460,550 acres. The median assessed value is $275,700. The median lot size is 2.00 acres. 12,703 parcels are 10 acres or larger. The records carry 37,826 distinct owner names. Owner names and lot sizes are on nearly every parcel. Mailing addresses reach 95.4%. Site addresses reach 75.3%. Browse the interactive St. Croix County Parcel viewer here.
St. Croix County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 54,894 | 100% |
| Owner name | 54,890 | 99.9% |
| Owner mailing address | 52,360 | 95.4% |
| Site address | 41,353 | 75.3% |
| Land use code | 49,786 | 90.7% |
| Land use description | 0 | 0% |
| Assessed value | 50,522 | 92.0% |
| Land value | 50,522 | 92.0% |
| Improvement value | 50,762 | 92.5% |
| Acreage | 54,885 | 99.9% |
| Parcel boundary | 54,894 | 100% |
| Download all St. Croix County parcels. | ||
Field coverage measured across all St. Croix County parcel records.
St. Croix County Population
St. Croix County had 93,536 residents in 2020. That was 10.9% higher than in 2010. St. Croix County added 30,381 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 129 people per square mile. Some of the county's most populated postal areas include Hudson, New Richmond and Somerset.
Population Trend in St. Croix County WI
St. Croix County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
St. Croix County Zip Codes
St. Croix County has 11 zip codes. Some of the county's most populated zip codes include Hudson (54016), New Richmond (54017) and Somerset (54025). Hudson is the largest zip by population, with about 33,198 residents or 35% of the county total. Together, the three largest zips account for about 65% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in St. Croix County WI
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 54016 | Hudson | 33,198 | ▴ 10.3% |
| 54017 | New Richmond | 19,816 | ▴ 18.4% |
| 54025 | Somerset | 7,336 | ▴ 6.9% |
| 54002 | Baldwin | 6,741 | ▴ 7.4% |
| 54023 | Roberts | 4,456 | ▴ 16.3% |
| Download all zip code data | |||
St. Croix County Zip Code populations and trends per most recent census data.
St. Croix County Demographics
St. Croix County has a median age of 39.8, which makes the county a little younger than Wisconsin overall. About 24.1% of residents are under 18, while 15.3% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 31.8% of the population, which points to a solid working-age base. About 39.4% of adults have a bachelor's degree or higher, above the statewide figure of 32.8%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for St. Croix County WI
Median Age
39.8
Under 18
24.1%
Age 65+
15.3%
Bachelor's+
39.4%
St. Croix County School Districts
St. Croix County is served by 11 public school districts with 21,539 students enrolled in 2024. The largest districts on the county map are Hudson, New Richmond and River Falls. Those three districts account for about 56% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.
Largest School Districts by Enrollment in St. Croix County WI
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Hudson School District | 5,119 | 23.8% | ▾ -2.5% |
| New Richmond School District | 3,502 | 16.3% | ▾ -0.8% |
| River Falls School District | 3,442 | 16% | ▾ -0.3% |
| St. Croix Central School District | 1,866 | 8.7% | ▴ 2.5% |
| Baldwin-Woodville Area School District | 1,678 | 7.8% | ▾ -1.4% |
| Download all school district data | |||
St. Croix County school district enrollment and trends per most recent NCES reporting data.
St. Croix County Housing & Real Estate
St. Croix County has a median home value of $349,700 and a median gross rent of $1,238. About 79% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Wisconsin median, while rents come in above the state average. In March 2026, the median listing price was $477,950 and homes spent about 45 days on the market.
St. Croix County Housing Mix
St. Croix County housing mix: owner, renter and vacant units.
St. Croix County Housing Trends
St. Croix County median home value and rent trend (last 5 years).
Businesses in St. Croix County, WI
St. Croix County has 4,192 business listings across 640 categories. The largest categories in St. Croix County business listings are Real Estate Agents (101, 2.4%), Churches & Religious Organizations (81, 1.9%), and Auto Repair (80, 1.9%). The full St. Croix County business listings dataset includes names, categories, addresses and contact details where available. St. Croix County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in St. Croix County, WI
| Category | Businesses | Share |
|---|---|---|
| Real Estate Agents | 101 | 2.4% |
| Churches & Religious Organizations | 81 | 1.9% |
| Auto Repair | 80 | 1.9% |
| Contractors | 69 | 1.6% |
| Gas Stations | 66 | 1.6% |
| Beauty Salons | 61 | 1.5% |
| Farm | 61 | 1.5% |
| Parks & Recreation | 57 | 1.4% |
| Chiropractors | 50 | 1.2% |
| Hair Salons | 48 | 1.1% |
St. Croix County Business Listings
| Business | Category | City |
|---|---|---|
| US Minerals - Black Diamond Abrasives - Roberts Plant | Abrasives Supplier | Roberts |
| New Richmond Alano Society | Abuse And Addiction Treatment | New Richmond |
| Zaxx Cabinets | Academic Bookstore | New Richmond |
| Mallalieuna | Accommodation | North Hudson |
| Guinn Vinopal and Zahradka | Accountant | New Richmond |
| Hawk's Ridge Ranch - Health, Happiness and Horse Retreat Center | Active Life | Hudson |
| Joyanne Kohler Acupuncture | Acupuncture | Hammond |
| SMART Recovery | Addiction Rehabilitation Center | Baldwin |
| Cajun Club | Adult Entertainment | Houlton |
| BDSM Discount Store | Adult Store | Hudson |
| Download St. Croix County business listings | ||
St. Croix County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Get the Full St. Croix County Data Package
This page shows a preview of what's included in the St. Croix County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for parcels, zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border St. Croix County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.