McLean County GIS Maps

McLean 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.

McLean County Parcels

McLean County has 19,161 mapped parcels covering 1,333,782 acres. The median assessed value is $86,600. The median lot size is 40.00 acres. 10,851 parcels are 10 acres or larger. Agricultural accounts for 54.1% of parcels. Residential follows at 32.0% and commerical at 5.3%. The records carry 7,377 distinct owner names. About 10% of parcels list an owner mailing address outside North Dakota. Lot sizes are on nearly every parcel. Owner names reach 94.7%. Mailing addresses reach 93.5%. Browse the interactive McLean County Parcel viewer here.

McLean County Parcel Data Coverage

Field coverage measured across all McLean County parcel records. Download free sample data here.

McLean County Population

McLean County had 9,771 residents in 2020. That was 9% higher than in 2010. McLean County added 460 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 5 people per square mile. Some of the county's most populated postal areas include Garrison, Washburn and Underwood.

Population Trend in McLean County ND

McLean County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.

McLean County Zip Codes

McLean County has 13 zip codes. Some of the county's most populated zip codes include Garrison (58540), Washburn (58577) and Underwood (58576). Garrison is the largest zip by population, with about 2,880 residents or 29% of the county total. Together, the three largest zips account for about 58% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in McLean County ND

McLean County Zip Code populations and trends per most recent census data.

McLean County Demographics

McLean County has a median age of 47.4, which makes the county a little older than North Dakota overall. About 21.5% of residents are under 18, while 25.6% 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 26.2% of the population, which points to a solid working-age base. About 23.9% of adults have a bachelor's degree or higher, above the statewide figure of 32.3%. The county is mostly White by population, though Hispanic, Asian, Black and multiracial residents are also part of the local mix.

Key Demographics for McLean County ND

McLean County School Districts

McLean County is served by 10 public school districts with 2,864 students enrolled in 2024. The largest districts on the county map are Velva Public 1, Lewis and Clark Public 161 and Garrison Public 51. Those three districts account for about 43% 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 McLean County ND

McLean County school district enrollment and trends per most recent NCES reporting data.

McLean County Housing & Real Estate

McLean County has a median home value of $233,100 and a median gross rent of $768. About 83% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the North Dakota median, while rents come in below the state average. In March 2026, the median listing price was $309,500 and homes spent about 101 days on the market.

Businesses in McLean County, ND

McLean County has 491 business listings across 184 categories. The largest categories in McLean County business listings are Churches & Religious Organizations (29, 5.9%), Lake (21, 4.3%), and Bars & Nightlife (17, 3.5%). The full McLean County business listings dataset includes names, categories, addresses and contact details where available. McLean County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in McLean County, ND

McLean County Business Listings

McLean County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

McLean County Basemaps

McLean 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.

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 North Dakota — explore the full structure before you buy.