Bayfield County GIS Maps
Bayfield County, Wisconsin, has 16,220 residents across 35,048 parcels and covers 1,477.9 square miles. The population grew 8% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Bayfield County is 55007.
Washburn is the county's largest population center. Bayfield County also includes 10 zip codes, 6 public school districts and 41 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.
Bayfield County Trends
- Population
- 16,220▴
- Median Home Value
- $228,100▴
- K-12 Enrollment
- 4,486▾
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.
Bayfield 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.
Bayfield County Parcels
Bayfield County has 35,048 mapped parcels covering 945,830 acres. The median assessed value is $56,800. The median lot size is 10.00 acres. 17,341 parcels are 10 acres or larger. The records carry 15,888 distinct owner names. Owner names and lot sizes are on nearly every parcel. Mailing addresses reach 97.5%. Assessed values reach 80.7%. Browse the interactive Bayfield County Parcel viewer here.
Bayfield County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 35,048 | 100% |
| Owner name | 35,041 | 99.9% |
| Owner mailing address | 34,164 | 97.5% |
| Site address | 14,712 | 42.0% |
| Land use code | 26,668 | 76.1% |
| Land use description | 0 | 0% |
| Assessed value | 28,285 | 80.7% |
| Land value | 28,285 | 80.7% |
| Improvement value | 28,285 | 80.7% |
| Acreage | 34,667 | 98.9% |
| Parcel boundary | 35,048 | 100% |
| Download all Bayfield County parcels. | ||
Field coverage measured across all Bayfield County parcel records.
Bayfield County Population
Bayfield County had 16,220 residents in 2020. That was 8% higher than in 2010. Bayfield County added 1,207 people between 2000 and 2020, which points to steady long-term growth. Washburn is the largest city in the county, but it accounts for only about 13% of the total population. The county is fairly spread out, with about 11 people per square mile. Some of the county's most populated postal areas include Washburn, Bayfield and Iron River.
Population Trend in Bayfield County WI
Bayfield County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Bayfield County Zip Codes
Bayfield County has 10 zip codes. Some of the county's most populated zip codes include Washburn (54891), Bayfield (54814) and Iron River (54847). Washburn is the largest zip by population, with about 3,351 residents or 21% of the county total. Together, the three largest zips account for about 54% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Bayfield County WI
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 54891 | Washburn | 3,351 | ▾ -1.1% |
| 54814 | Bayfield | 2,985 | ▴ 20.5% |
| 54847 | Iron River | 2,483 | ▴ 11.7% |
| 54856 | Mason | 1,545 | ▾ -4.4% |
| 54821 | Cable | 1,413 | ▴ 10.7% |
| Download all zip code data | |||
Bayfield County Zip Code populations and trends per most recent census data.
Bayfield County Demographics
Bayfield County has a median age of 54.1, which makes the county a little older than Wisconsin overall. About 16.6% of residents are under 18, while 30.3% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 65 and over at about 30.3% of the population, which points to an older population profile. About 35% 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 Bayfield County WI
Median Age
54.1
Under 18
16.6%
Age 65+
30.3%
Bachelor's+
35%
Bayfield County School Districts
Bayfield County is served by 6 public school districts with 4,486 students enrolled in 2024. The largest districts on the county map are Ashland, Maple and Washburn. Those three districts account for about 80% 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 Bayfield County WI
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Ashland School District | 1,759 | 39.2% | ▾ -0.3% |
| Maple School District | 1,271 | 28.3% | ▾ -0.5% |
| Washburn School District | 547 | 12.2% | ▾ -4.9% |
| Bayfield School District | 415 | 9.3% | ▾ -1.4% |
| Drummond Area School District | 301 | 6.7% | ▾ -5.3% |
| Download all school district data | |||
Bayfield County school district enrollment and trends per most recent NCES reporting data.
Bayfield County Housing & Real Estate
Bayfield County has a median home value of $228,100 and a median gross rent of $789. About 85% 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 $466,225 and homes spent about 94 days on the market.
Bayfield County Housing Mix
Bayfield County housing mix: owner, renter and vacant units.
Bayfield County Housing Trends
Bayfield County median home value and rent trend (last 5 years).
Businesses in Bayfield County, WI
Bayfield County has 1,236 business listings across 306 categories. The largest categories in Bayfield County business listings are Lake (139, 11.2%), Parks & Recreation (32, 2.6%), and Bars & Nightlife (31, 2.5%). The full Bayfield County business listings dataset includes names, categories, addresses and contact details where available. Bayfield County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Bayfield County, WI
| Category | Businesses | Share |
|---|---|---|
| Lake | 139 | 11.2% |
| Parks & Recreation | 32 | 2.6% |
| Bars & Nightlife | 31 | 2.5% |
| Campgrounds & RV Parks | 29 | 2.3% |
| Hotels | 27 | 2.2% |
| Churches & Religious Organizations | 22 | 1.8% |
| Farm | 21 | 1.7% |
| Public And Government Association | 20 | 1.6% |
| Art Gallery | 19 | 1.5% |
| Lodge | 19 | 1.5% |
Bayfield County Business Listings
| Business | Category | City |
|---|---|---|
| Buskey Bay Resort | Accommodation | Iron River |
| Blue Water Bookkeeping | Accountant | Mason |
| Bayfield Peninsula | Active Life | Bayfield |
| White River Ag | Agricultural Service | Mason |
| Iron Rose Farms, LLC | Agriculture | Iron River |
| Cornucopia Airport | Airport | Cornucopia |
| Bayfield Ambulance | Ambulance And Ems Services | Bayfield |
| Windsor | American Restaurants | Solon Springs |
| Siskowit Galloway Farm | Amusement Park | Cornucopia |
| Country Care Pet | Animal Hospital | Washburn |
| Download Bayfield County business listings | ||
Bayfield County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Bayfield County Basemaps
Bayfield 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 Bayfield County Data Package
This page shows a preview of what's included in the Bayfield 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 Bayfield County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.