Mountrail County, North Dakota Demographics 2026

Population Overview

Mountrail County is located in North Dakota with a total population of 9,567. It is the 16th most populous county out of 53 in North Dakota. The county encompasses 7 Census-designated places.

Age Demographics

The median age in Mountrail County is 35.1 years. This is 2% lower than the state median of 35.7 years. With 28.5% of the population under 18, Mountrail County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Mountrail County is $81,292. This is 7% higher than the state median of $75,949. Compared to the national median of $78,538, household income here is 4% higher. The poverty rate stands at 13.2%. This is 24% higher than the state poverty rate of 10.6%. The unemployment rate is 2.9%. This is 4% higher than the state rate of 2.8%. The median home value is $222,200. Housing costs are 8% lower than the state median of $241,100. With a home-value-to-income ratio of just 2.7x, Mountrail County is one of the most affordable housing markets in the area. 60.0% of occupied housing units are owner-occupied. This homeownership rate is 5% lower than the state average of 63.4%.

Race & Ethnicity

The largest racial or ethnic group in Mountrail County is White (non-Hispanic), making up 57.8% of the population. Hispanic or Latino residents account for 8.2%. The Hispanic or Latino population is significantly higher than the state average (8.2% vs 4.5%). The Asian population (0.7%) is well below the state average of 1.5%.

Education

22.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 31% lower than the state rate of 32.3%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 88.6%.