Nicollet County GIS Maps
Nicollet County, Minnesota, has 34,454 residents and covers 448.6 square miles. The population grew 5.3% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Nicollet County is 27103.
North Mankato is the county's largest population center. Nicollet County also includes 5 zip codes, 7 public school districts and 42 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 population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Nicollet County Trends
- Population
- 34,454▴
- Median Home Value
- $258,500▴
- K-12 Enrollment
- 15,336▾
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.
Nicollet 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.
Nicollet County Population
Nicollet County had 34,454 residents in 2020. That was 5.3% higher than in 2010. Nicollet County added 4,683 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 77 people per square mile. Some of the county's most populated postal areas include Mankato, Saint Peter and Nicollet.
Population Trend in Nicollet County MN
Nicollet County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Nicollet County Zip Codes
Nicollet County has 5 zip codes. Some of the county's most populated zip codes include Mankato (56003), Saint Peter (56082) and Nicollet (56074). Mankato is the largest zip by population, with about 15,221 residents or 44% of the county total. Together, the three largest zips account for about 92% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Nicollet County MN
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 56003 | Mankato | 15,221 | ▴ 6.2% |
| 56082 | Saint Peter | 14,507 | ▴ 6.7% |
| 56074 | Nicollet | 1,965 | ▾ -1.9% |
| 56021 | Courtland | 1,115 | ▴ 7.4% |
| 56054 | Lafayette | 888 | ▾ -3.8% |
| Download all zip code data | |||
Nicollet County Zip Code populations and trends per most recent census data.
Nicollet County Demographics
Nicollet County has a median age of 37.8, which makes the county a little younger than Minnesota overall. About 21.6% of residents are under 18, while 17.2% 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 30.6% of the population, which points to a solid working-age base. About 35.7% of adults have a bachelor's degree or higher, above the statewide figure of 38.8%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.
Key Demographics for Nicollet County MN
Median Age
37.8
Under 18
21.6%
Age 65+
17.2%
Bachelor's+
35.7%
Nicollet County School Districts
Nicollet County is served by 7 public school districts with 15,336 students enrolled in 2024. The largest districts on the county map are Mankato Public, New Ulm Public and St. Peter Public. Those three districts account for about 81% 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 Nicollet County MN
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Mankato Public School District | 8,219 | 53.6% | ▾ -0.7% |
| New Ulm Public School District | 2,127 | 13.9% | ▾ -0.4% |
| St. Peter Public School District | 2,107 | 13.7% | ▴ 0.1% |
| Sibley East School District | 1,089 | 7.1% | ▴ 2.1% |
| Le Sueur-Henderson School District | 908 | 5.9% | ▴ 1.1% |
| Download all school district data | |||
Nicollet County school district enrollment and trends per most recent NCES reporting data.
Nicollet County Housing & Real Estate
Nicollet County has a median home value of $258,500 and a median gross rent of $931. About 72% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Minnesota median, while rents come in below the state average. In March 2026, the median listing price was $359,875 and homes spent about 30 days on the market.
Nicollet County Housing Mix
Nicollet County housing mix: owner, renter and vacant units.
Nicollet County Housing Trends
Nicollet County median home value and rent trend (last 5 years).
Businesses in Nicollet County, MN
Nicollet County has 1,195 business listings across 367 categories. The largest categories in Nicollet County business listings are Churches & Religious Organizations (45, 3.8%), Parks & Recreation (33, 2.8%), and College University (24, 2.0%). The full Nicollet County business listings dataset includes names, categories, addresses and contact details where available. Nicollet County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Nicollet County, MN
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 45 | 3.8% |
| Parks & Recreation | 33 | 2.8% |
| College University | 24 | 2.0% |
| Auto Repair | 18 | 1.5% |
| Gas Stations | 16 | 1.3% |
| Insurance Agencies | 16 | 1.3% |
| Professional Services | 16 | 1.3% |
| Landmark And Historical Building | 14 | 1.2% |
| Farm | 14 | 1.2% |
| Chiropractors | 14 | 1.2% |
Nicollet County Business Listings
| Business | Category | City |
|---|---|---|
| Book Mark | Academic Bookstore | Saint Peter |
| Sohre Hall | Accommodation | St Peter |
| Dranttel Marie CPA | Accountant | St Peter |
| Cinco Machinery & Ancillary Sales | Advertising Agency | North Mankato |
| J's Sambusa | African Restaurant | North Mankato |
| United Farmers Cooperative | Agricultural Cooperatives | St Peter |
| Arnolds of Mankato | Agricultural Service | North Mankato |
| Nicollet Farmers Exchange Co | Agriculture | Nicollet |
| Football Stadium | American Football Field | Saint Peter |
| Dave's Place of Lafayette | American Restaurants | Lafayette |
| Download Nicollet County business listings | ||
Nicollet County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Nicollet County Basemaps
Nicollet 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 Nicollet County Data Package
This page shows a preview of what's included in the Nicollet 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 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 Nicollet County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.