Traill County GIS Maps
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Traill County, North Dakota, has 7,997 residents across 9,905 parcels and covers 862 square miles. The population declined 1.5% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Traill County is 38097.
Mayville is the county's largest population center. Traill County also includes 9 zip codes, 5 public school districts and 56 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.
Traill County Trends
- Population
- 7,997▾
- Median Home Value
- $193,200▴
- K-12 Enrollment
- 2,102▴
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.
Traill 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.
Traill County Parcels
Traill County has 9,905 mapped parcels covering 518,131 acres. Agricultural land accounts for 35.1% of parcels. Residential follows at 23.6% and commercial at 6.5%. The records carry 3,548 distinct owner names. Owner names reach 70.8%. Browse the interactive Traill County Parcel viewer here.
Traill County Parcel Data Coverage
| Field | Parcels | Coverage |
|---|---|---|
| Parcel ID | 9,905 | 100% |
| Owner name | 7,011 | 70.8% |
| Owner mailing address | 0 | 0% |
| Site address | 2,371 | 23.9% |
| Land use code | 0 | 0% |
| Land use description | 7,011 | 70.8% |
| Assessed value | 0 | 0% |
| Land value | 0 | 0% |
| Improvement value | 0 | 0% |
| Acreage | 0 | 0% |
| Parcel boundary | 9,905 | 100% |
| Download all Traill County parcels. | ||
Field coverage measured across all Traill County parcel records.
Traill County Population
Traill County had 7,997 residents in 2020. That was 1.5% lower than in 2010. Traill County had 480 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 9 people per square mile. Some of the county's most populated postal areas include Hillsboro, Mayville and Buxton.
Population Trend in Traill County ND
Traill County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Traill County Zip Codes
Traill County has 9 zip codes. Some of the county's most populated zip codes include Hillsboro (58045), Mayville (58257) and Buxton (58218). Hillsboro is the largest zip by population, with about 2,298 residents or 29% of the county total. Together, the three largest zips account for about 65% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Traill County ND
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 58045 | Hillsboro | 2,298 | ▴ 3% |
| 58257 | Mayville | 2,174 | ▾ -2.9% |
| 58218 | Buxton | 753 | ▴ 7.6% |
| 58038 | Grandin | 310 | ▾ -6.6% |
| 58223 | Buxton | 235 | ▴ 10.8% |
| Download all zip code data | |||
Traill County Zip Code populations and trends per most recent census data.
Traill County Demographics
Traill County has a median age of 40.7, which makes the county a little older than North Dakota overall. About 22.3% of residents are under 18, while 20% 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 28% of the population, which points to a solid working-age base. About 31.2% 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 Traill County ND
Median Age
40.7
Under 18
22.3%
Age 65+
20%
Bachelor's+
31.2%
Traill County School Districts
Traill County is served by 5 public school districts with 2,102 students enrolled in 2024. The largest districts on the county map are Northern Cass Public 97, May-Port CG Public 14 and Hillsboro Public 9. Those three districts account for about 83% of public school enrollment in the map area. Total enrollment has grown modestly since 2017 across the districts shown on the county map.
Largest School Districts by Enrollment in Traill County ND
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Northern Cass Public School District 97 | 724 | 34.4% | ▴ 1% |
| May-Port CG Public School District 14 | 517 | 24.6% | ▴ 1.2% |
| Hillsboro Public School District 9 | 494 | 23.5% | ▴ 0.2% |
| Central Valley Public School District 3 | 210 | 10% | ▾ -1.4% |
| Hatton-Eielson Public School District 7 | 157 | 7.5% | ▾ -5.4% |
| Download all school district data | |||
Traill County school district enrollment and trends per most recent NCES reporting data.
Traill County Housing & Real Estate
Traill County has a median home value of $193,200 and a median gross rent of $758. About 75% 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 $231,500 and homes spent about 96 days on the market.
Traill County Housing Mix
Traill County housing mix: owner, renter and vacant units.
Traill County Housing Trends
Traill County median home value and rent trend (last 5 years).
Businesses in Traill County, ND
Traill County has 421 business listings across 188 categories. The largest categories in Traill County business listings are Churches & Religious Organizations (20, 4.8%), Agricultural Service (12, 2.9%), and Bars & Nightlife (9, 2.1%). The full Traill County business listings dataset includes names, categories, addresses and contact details where available. Traill County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Traill County, ND
| Category | Businesses | Share |
|---|---|---|
| Churches & Religious Organizations | 20 | 4.8% |
| Agricultural Service | 12 | 2.9% |
| Bars & Nightlife | 9 | 2.1% |
| Insurance Agencies | 9 | 2.1% |
| Gas Stations | 9 | 2.1% |
| Farm | 8 | 1.9% |
| Landmark And Historical Building | 8 | 1.9% |
| Banks | 7 | 1.7% |
| Pizza Restaurants | 7 | 1.7% |
| Auto Repair | 7 | 1.7% |
Traill County Business Listings
| Business | Category | City |
|---|---|---|
| Agassiz Hall | Accommodation | Mayville |
| Jerome Berg Field | Active Life | Mayville |
| The Idea Shop | Advertising Agency | Hillsboro |
| Valley United Co-op Seed Shed | Agricultural Cooperatives | Reynolds |
| Cummings Ag | Agricultural Service | Cummings |
| Kelley Bean Co Inc | Agriculture | Hatton |
| Hillsboro Regional Airport | Airport | |
| West Traill Ambulance Service | Ambulance And Ems Services | Mayville |
| Ma's Drive Inn | American Restaurants | Mayville |
| Uniquely Yours Crafts | Antique Store | Hillsboro |
| Download Traill County business listings | ||
Traill County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Traill County Basemaps
Traill 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 Traill County Data Package
This page shows a preview of what's included in the Traill 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 Traill County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.