Olmsted County GIS Maps
Olmsted County, Minnesota, has 162,847 residents across 75,258 parcels and covers 653.5 square miles. The population grew 12.9% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Olmsted County is 27109.
Rochester is the county's largest population center. Olmsted County also includes 12 zip codes, 10 public school districts and 50 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.
Olmsted County Trends
- Population
- 162,847▴
- Median Home Value
- $304,500▴
- K-12 Enrollment
- 30,120▾
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.
Olmsted 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.
Olmsted County Parcels
Olmsted County has 75,258 mapped parcels covering 403,495 acres. The median assessed value is $300,700. The records carry 55,441 distinct owner names. Owner names and assessed values are on nearly every parcel. Mailing addresses reach 97.0%. Site addresses reach 83.2%. Browse the interactive Olmsted County Parcel viewer here.
Olmsted County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 75,258 | 100% |
| Owner name | 74,967 | 99.6% |
| Owner mailing address | 73,029 | 97.0% |
| Site address | 62,618 | 83.2% |
| Land use code | 74,966 | 99.6% |
| Land use description | 0 | 0% |
| Assessed value | 75,258 | 100% |
| Land value | 75,258 | 100% |
| Improvement value | 75,258 | 100% |
| Acreage | 14,860 | 19.7% |
| Parcel boundary | 75,258 | 100% |
| Download all Olmsted County parcels. | ||
Field coverage measured across all Olmsted County parcel records.
Olmsted County Population
Olmsted County had 162,847 residents in 2020. That was 12.9% higher than in 2010. Olmsted County added 38,570 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 249 people per square mile. Some of the county's most populated postal areas include Rochester, Rochester and Rochester.
Population Trend in Olmsted County MN
Olmsted County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Olmsted County Zip Codes
Olmsted County has 12 zip codes. Some of the county's most populated zip codes include Rochester (55901), Rochester (55904) and Rochester (55902). Rochester is the largest zip by population, with about 58,046 residents or 36% of the county total. Together, the three largest zips account for about 70% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Olmsted County MN
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 55901 | Rochester | 58,046 | ▴ 11.8% |
| 55904 | Rochester | 29,813 | ▴ 13.2% |
| 55902 | Rochester | 25,878 | ▴ 17.8% |
| 55906 | Rochester | 19,559 | ▴ 11.1% |
| 55920 | Byron | 8,512 | ▴ 21.2% |
| Download all zip code data | |||
Olmsted County Zip Code populations and trends per most recent census data.
Olmsted County Demographics
Olmsted County has a median age of 37.8, which makes the county a little younger than Minnesota overall. About 24.2% of residents are under 18, while 16.3% 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 33.6% of the population, which points to a solid working-age base. About 48.5% of adults have a bachelor's degree or higher, above the statewide figure of 38.8%. The county is majority White by population, with Hispanic, Asian, Black and multiracial residents making up a meaningful share of the local mix.
Key Demographics for Olmsted County MN
Median Age
37.8
Under 18
24.2%
Age 65+
16.3%
Bachelor's+
48.5%
Olmsted County School Districts
Olmsted County is served by 10 public school districts with 30,120 students enrolled in 2024. The largest districts on the county map are Rochester Public, Byron Public and Kasson-Mantorville. Those three districts account for about 72% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, based on district totals from 2017 to 2024.
Largest School Districts by Enrollment in Olmsted County MN
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Rochester Public School District | 17,171 | 57% | ▾ -1% |
| Byron Public School District | 2,342 | 7.8% | ▴ 0.5% |
| Kasson-Mantorville School District | 2,152 | 7.1% | ▾ -0.4% |
| Stewartville Public School District | 1,976 | 6.6% | ▾ -1.4% |
| Pine Island Public School District | 1,562 | 5.2% | ▴ 1.6% |
| Download all school district data | |||
Olmsted County school district enrollment and trends per most recent NCES reporting data.
Olmsted County Housing & Real Estate
Olmsted County has a median home value of $304,500 and a median gross rent of $1,283. About 71% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Minnesota median, while rents come in above the state average. In March 2026, the median listing price was $463,000 and homes spent about 47 days on the market.
Olmsted County Housing Mix
Olmsted County housing mix: owner, renter and vacant units.
Olmsted County Housing Trends
Olmsted County median home value and rent trend (last 5 years).
Businesses in Olmsted County, MN
Olmsted County has 6,709 business listings across 787 categories. The largest categories in Olmsted County business listings are Real Estate Agents (188, 2.8%), Churches & Religious Organizations (129, 1.9%), and Parks & Recreation (111, 1.7%). The full Olmsted County business listings dataset includes names, categories, addresses and contact details where available. Olmsted County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Olmsted County, MN
| Category | Businesses | Share |
|---|---|---|
| Real Estate Agents | 188 | 2.8% |
| Churches & Religious Organizations | 129 | 1.9% |
| Parks & Recreation | 111 | 1.7% |
| Contractors | 104 | 1.6% |
| Auto Repair | 95 | 1.4% |
| Landmark And Historical Building | 90 | 1.3% |
| Insurance Agencies | 88 | 1.3% |
| Community & Nonprofits | 86 | 1.3% |
| Beauty Salons | 82 | 1.2% |
| Hotels | 81 | 1.2% |
Olmsted County Business Listings
| Business | Category | City |
|---|---|---|
| Birthright of Rochester | Abortion Clinic | Rochester |
| Rochester Rehabilitation and Living Center | Abuse And Addiction Treatment | Rochester |
| Dunlap & Seeger | Academic Bookstore | Rochester |
| Eastwood Ridge | Accommodation | Rochester |
| All Around Accounting Inc. | Accountant | Rochester |
| Rochester Minnesota Aquatics Center | Active Life | Rochester |
| Healent Acupuncture | Acupuncture | Rochester |
| American Red Cross CPR, First Aid, and AED Certification | Adult Education | Rochester |
| Pure Pleasure | Adult Entertainment | Stewartville |
| Townsquare Media Rochester | Advertising Agency | Rochester |
| Download Olmsted County business listings | ||
Olmsted County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Olmsted County Basemaps
Olmsted 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 Olmsted County Data Package
This page shows a preview of what's included in the Olmsted 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 Olmsted County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.