Sioux County GIS Maps

Sioux 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.

Sioux County Parcels

Sioux County has 3,285 mapped parcels covering 727,683 acres. The median assessed value is $22,800. The median lot size is 160.00 acres. 2,683 parcels are 10 acres or larger. Agricultural accounts for 81.6% of parcels. Residential follows at 9.0% and commerical at 5.4%. The records carry 528 distinct owner names. About 28% 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 96.3%. Browse the interactive Sioux County Parcel viewer here.

Sioux County Parcel Data Coverage

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

Sioux County Population

Sioux County had 3,898 residents in 2020. That was 6.1% lower than in 2010. Sioux County had 146 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 4 people per square mile. Some of the county's most populated postal areas include Fort Yates, Cannon Ball and Fort Yates.

Population Trend in Sioux County ND

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

Sioux County Zip Codes

Sioux County has 3 zip codes. Some of the county's most populated zip codes include Fort Yates (58538), Cannon Ball (58528) and Fort Yates (58568). Fort Yates is the largest zip by population, with about 2,287 residents or 59% of the county total. Together, the three largest zips account for about 93% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in Sioux County ND

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

Sioux County Demographics

Sioux County has a median age of 28.7, which makes the county a little younger than North Dakota overall. About 34.6% of residents are under 18, while 9.2% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is Under 18 at about 34.6% of the population, which suggests the county has a notable share of children and family households. About 11.2% of adults have a bachelor's degree or higher, above the statewide figure of 32.3%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.

Key Demographics for Sioux County ND

Sioux County School Districts

Sioux County is served by 3 public school districts with 345 students enrolled in 2024. The largest districts on the county map are Solen Public 3, Selfridge Public 8 and Fort Yates Public 4. Those three districts account for about 100% 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 Sioux County ND

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

Sioux County Housing & Real Estate

Sioux County has a median home value of $87,400 and a median gross rent of $466. About 46% 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 $998,700 and homes spent about 44 days on the market.

Businesses in Sioux County, ND

Sioux County has 103 business listings across 64 categories. The largest categories in Sioux County business listings are Elementary School (6, 5.8%), Public And Government Association (6, 5.8%), and Bars & Nightlife (5, 4.9%). The full Sioux County business listings dataset includes names, categories, addresses and contact details where available. Sioux County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in Sioux County, ND

Sioux County Business Listings

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

Sioux County Basemaps

Sioux 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.