Traill County, North Dakota

Traill County population, land area and income

Traill County had 7,989 residents in the Census Vintage 2024 estimate, on 861.9 square miles of land. It ranks 18th of 53 in North Dakota by population and 47th by land area. That works out to 9.3 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in North Dakota has 3,853 residents, so Traill County is 2.1 times that size.

Its SAIPE 2023 median household income of $82,020 is in the top quarter among 3,143 counties with an estimate.

How Traill County's population changed since 2020

Traill County gained 10 residents between the July 2020 and July 2024 estimates, a rise of 0.1%. That ranks 14th of 53 in North Dakota for growth. The median North Dakota county changed by -1.3%, and the state as a whole by +2.2%.

Since the April 2020 estimates base, Traill County recorded 346 births and 408 deaths, a natural change of -62. Net international migration added +70 and net domestic migration, people moving to or from other US counties, came to -11. The largest single component was international migration, which added 70 people.

Where Traill County is

The Census internal point of Traill County is at 47.446300, -97.164600. It sits in UTM zone 14N. The map shades North Dakota's 53 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Traill County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Traill County

2 incorporated places of 1,000+ people have residents in Traill County, 3,481 people together, or 44% of the county. Each figure counts only the part of the town inside Traill County; towns marked "part" extend into another county. The largest is Mayville with 1,820.

Counties bordering Traill County

The Census 2024 county adjacency file lists 5 neighbors for Traill County, including 2 across a state line. The most populous is Cass County, ND, with 200,945 residents. Distances run between Census internal points in a straight line.

• Cass County

  200,945 people

  36 mi S

• Grand Forks County

  73,771 people

  36 mi NNW

• MN

  Polk County, MN

  30,413 people

  42 mi ENE

• MN

  Norman County, MN

  6,284 people

  34 mi ESE

• Steele County

  1,767 people

  26 mi W

Distance to Bismarck and the nearest big city

Bismarck is 175.5 miles WSW of Traill County's internal point in a straight line. The nearest place of 100,000 or more is Fargo, ND (population 136,285), 43.2 miles away. The nearest place of 10,000 or more is Grand Forks, ND (population 59,845), 32.9 miles away.

Traill County FIPS code

The FIPS code of Traill County is 38097: state code 38 for North Dakota plus county code 097. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $82,020.