Slope County GIS Maps
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Slope County, North Dakota, has 706 residents across 3,108 parcels and covers 1,214.9 square miles. The population declined 2.9% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Slope County is 38087.
Marmarth is the county's largest population center. Slope County also includes 2 zip codes, 3 public school districts and 43 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.
Slope County Trends
- Population
- 706▾
- Median Home Value
- $121,300▴
- K-12 Enrollment
- 923▾
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.
Slope 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.
Slope County Parcels
Slope County has 3,108 mapped parcels covering 613,478 acres. The median assessed value is $61,136. The median lot size is 160.00 acres. 3,031 parcels are 10 acres or larger. The records carry 655 distinct owner names. About 15% of parcels list an owner mailing address outside North Dakota. Owner names, assessed values and lot sizes are on nearly every parcel. Mailing addresses reach 97.2%. Browse the interactive Slope County Parcel viewer here.
Slope County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 3,108 | 100% |
| Owner name | 3,090 | 99.4% |
| Owner mailing address | 3,020 | 97.2% |
| Site address | 2 | 0.1% |
| Land use code | 0 | 0% |
| Land use description | 3,090 | 99.4% |
| Assessed value | 3,090 | 99.4% |
| Land value | 3,090 | 99.4% |
| Improvement value | 3,090 | 99.4% |
| Acreage | 3,108 | 100% |
| Parcel boundary | 3,108 | 100% |
| Download all Slope County parcels. | ||
Field coverage measured across all Slope County parcel records.
Slope County Population
Slope County had 706 residents in 2020. That was 2.9% lower than in 2010. Slope County had 61 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 1 people per square mile. Two of the county's most populated postal areas are New England and Bowman.
Population Trend in Slope County ND
Slope County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Slope County Zip Codes
Slope County has 2 zip codes. Two of the county's most populated zip codes are New England (58647) and Bowman (58620). New England is the largest zip by population, with about 1,225 residents or 174% of the county total. Together, the three largest zips account for about 196% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Slope County ND
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 58647 | New England | 1,225 | ▴ 7.3% |
| 58620 | Bowman | 156 | ▴ 18.2% |
| Download all zip code data | |||
Slope County Zip Code populations and trends per most recent census data.
Slope County Demographics
Slope County has a median age of 54.2, which makes the county a little older than North Dakota overall. About 17.7% of residents are under 18, while 27.5% 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 27.5% of the population, which points to an older population profile. About 22.8% 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 Slope County ND
Median Age
54.2
Under 18
17.7%
Age 65+
27.5%
Bachelor's+
22.8%
Slope County School Districts
Slope County is served by 3 public school districts with 923 students enrolled in 2024. The largest districts on the county map are Bowman County Public 1, New England Public 9 and Scranton Public 33. Those three districts account for about 100% 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 Slope County ND
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Bowman County Public School District 1 | 508 | 55% | ▾ -0.4% |
| New England Public School District 9 | 280 | 30.3% | ▾ -0.7% |
| Scranton Public School District 33 | 135 | 14.6% | ▾ -2.2% |
| Download all school district data | |||
Slope County school district enrollment and trends per most recent NCES reporting data.
Slope County Housing & Real Estate
Slope County has a median home value of $121,300 and a median gross rent of $719. About 87% 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 $599,000 and homes spent about 133 days on the market.
Slope County Housing Mix
Slope County housing mix: owner, renter and vacant units.
Slope County Housing Trends
Slope County median home value and rent trend (last 5 years).
Businesses in Slope County, ND
Slope County has 43 business listings across 25 categories. The largest categories in Slope County business listings are Farm (6, 14.0%), Landmark And Historical Building (4, 9.3%), and River (3, 7.0%). The full Slope County business listings dataset includes names, categories, addresses and contact details where available. Slope County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Slope County, ND
| Category | Businesses | Share |
|---|---|---|
| Farm | 6 | 14.0% |
| Landmark And Historical Building | 4 | 9.3% |
| River | 3 | 7.0% |
| Structure And Geography | 3 | 7.0% |
| Campgrounds & RV Parks | 3 | 7.0% |
| Churches & Religious Organizations | 2 | 4.7% |
| Public And Government Association | 2 | 4.7% |
| Museums | 2 | 4.7% |
| Bed And Breakfast | 2 | 4.7% |
| Livestock Breeder | 1 | 2.3% |
Slope County Business Listings
| Business | Category | City |
|---|---|---|
| Mo's Bunker Bar | Bars & Nightlife | Amidon |
| North Cedar Creek | Bed And Breakfast | Scranton |
| Little Missouri smoke shop | Cafe | Marmarth |
| Burning Coal Vein Campground | Campgrounds & RV Parks | Slope County |
| Lyle Presbyterian Church | Churches & Religious Organizations | Rhame |
| Slope County Courthouse | Courthouse | Amidon |
| Marmarth Elementary School | Elementary School | Marmarth |
| Pumpkin Pets And Pals LLC | Farm | Marmarth |
| Amidon Fire Department | Fire Departments | Amidon |
| Cedar Lake | Lake | Slope County |
| Download Slope County business listings | ||
Slope County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Slope County Basemaps
Slope 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 Slope County Data Package
This page shows a preview of what's included in the Slope 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 Slope County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.