Sauk County GIS Maps
Sauk County, Wisconsin, has 65,763 residents across 50,761 parcels and covers 831.5 square miles. The population grew 6.1% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Sauk County is 55111.
Baraboo is the county's largest population center. Sauk County also includes 14 zip codes, 9 public school districts and 61 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.
Sauk County Trends
- Population
- 65,763▴
- Median Home Value
- $242,400▴
- K-12 Enrollment
- 12,037▾
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.
Sauk 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.
Sauk County Parcels
Sauk County has 50,761 mapped parcels covering 542,817 acres. The median assessed value is $155,300. The median lot size is 1.45 acres. 14,774 parcels are 10 acres or larger. The records carry 27,963 distinct owner names. Owner names, mailing addresses and lot sizes are on nearly every parcel. Site addresses reach 62.4%. Assessed values reach 90.2%. Browse the interactive Sauk County Parcel viewer here.
Sauk County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 50,761 | 100% |
| Owner name | 50,741 | 99.9% |
| Owner mailing address | 50,759 | 99.9% |
| Site address | 31,681 | 62.4% |
| Land use code | 45,059 | 88.8% |
| Land use description | 0 | 0% |
| Assessed value | 45,787 | 90.2% |
| Land value | 45,787 | 90.2% |
| Improvement value | 45,787 | 90.2% |
| Acreage | 50,714 | 99.9% |
| Parcel boundary | 50,761 | 100% |
| Download all Sauk County parcels. | ||
Field coverage measured across all Sauk County parcel records.
Sauk County Population
Sauk County had 65,763 residents in 2020. That was 6.1% higher than in 2010. Sauk County added 10,538 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 79 people per square mile. Some of the county's most populated postal areas include Baraboo, Reedsburg and Prairie Du Sac.
Population Trend in Sauk County WI
Sauk County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Sauk County Zip Codes
Sauk County has 14 zip codes. Some of the county's most populated zip codes include Baraboo (53913), Reedsburg (53959) and Prairie Du Sac (53578). Baraboo is the largest zip by population, with about 21,046 residents or 32% of the county total. Together, the three largest zips account for about 64% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Sauk County WI
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 53913 | Baraboo | 21,046 | ▴ 5.9% |
| 53959 | Reedsburg | 14,298 | ▴ 6.8% |
| 53578 | Prairie Du Sac | 6,556 | ▴ 10.7% |
| 53583 | Sauk City | 5,787 | ▴ 0.7% |
| 53588 | Spring Green | 4,139 | ▴ 1.5% |
| Download all zip code data | |||
Sauk County Zip Code populations and trends per most recent census data.
Sauk County Demographics
Sauk County has a median age of 41.3, which makes the county a little older than Wisconsin overall. About 22.5% of residents are under 18, while 19.3% 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 30.2% of the population, which points to a solid working-age base. About 26.5% 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 Sauk County WI
Median Age
41.3
Under 18
22.5%
Age 65+
19.3%
Bachelor's+
26.5%
Sauk County School Districts
Sauk County is served by 9 public school districts with 12,037 students enrolled in 2024. The largest districts on the county map are Sauk Prairie, Baraboo and Reedsburg. Those three districts account for about 65% 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 Sauk County WI
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Sauk Prairie School District | 2,658 | 22.1% | ▾ -1% |
| Baraboo School District | 2,598 | 21.6% | ▾ -3.7% |
| Reedsburg School District | 2,591 | 21.5% | ▾ -0.2% |
| Wisconsin Dells School District | 1,768 | 14.7% | ▾ -3.2% |
| River Valley School District | 1,043 | 8.7% | ▾ -3.1% |
| Download all school district data | |||
Sauk County school district enrollment and trends per most recent NCES reporting data.
Sauk County Housing & Real Estate
Sauk County has a median home value of $242,400 and a median gross rent of $970. About 73% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Wisconsin median, while rents come in below the state average. In March 2026, the median listing price was $450,950 and homes spent about 67 days on the market.
Sauk County Housing Mix
Sauk County housing mix: owner, renter and vacant units.
Sauk County Housing Trends
Sauk County median home value and rent trend (last 5 years).
Businesses in Sauk County, WI
Sauk County has 4,094 business listings across 617 categories. The largest categories in Sauk County business listings are Parks & Recreation (92, 2.2%), Churches & Religious Organizations (85, 2.1%), and Hotels (77, 1.9%). The full Sauk County business listings dataset includes names, categories, addresses and contact details where available. Sauk County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Sauk County, WI
| Category | Businesses | Share |
|---|---|---|
| Parks & Recreation | 92 | 2.2% |
| Churches & Religious Organizations | 85 | 2.1% |
| Hotels | 77 | 1.9% |
| Gas Stations | 62 | 1.5% |
| Beauty Salons | 59 | 1.4% |
| Resort | 58 | 1.4% |
| Auto Repair | 55 | 1.3% |
| Real Estate Agents | 54 | 1.3% |
| Landmark And Historical Building | 52 | 1.3% |
| Farm | 49 | 1.2% |
Sauk County Business Listings
| Business | Category | City |
|---|---|---|
| Style & Stitches | 3D Printing Service | North Freedom |
| Ho Chunk Village | Accommodation | Baraboo |
| MBE CPAs | Accountant | Baraboo |
| Baraboo Bluffs | Active Life | Baraboo |
| Origins Acupuncture and Wellness | Acupuncture | Baraboo |
| Windspire Energy | Advertising Agency | Reedsburg |
| Insight FS | Agricultural Cooperatives | Spring Green |
| Bishop's Ag Services | Agricultural Service | Reedsburg |
| Foremost Farms USA | Agriculture | Reedsburg |
| Tri County Regional Airport | Airport | Spring Green |
| Download Sauk County business listings | ||
Sauk County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Sauk County Basemaps
Sauk County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Sauk County Data Package
This page shows a preview of what's included in the Sauk 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.
One-time · instant download · 30-day refund guarantee · See full package details
Preview a Live Package Demo
See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from Wisconsin — explore the full structure before you buy.
No email or download required. Opens in a preview window on this page.
Nearby Counties
Browse county data pages for the counties that border Sauk County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.