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McLean County, North Dakota Demographics 2026

McLean County, North Dakota has a population of 9,823, the 15th most populous county in North Dakota. The median household income is $83,583 and the median home value is $227,100. The poverty rate is 8.9%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

McLean County Quick Facts

Population 9,823
Median Household Income $83,583
Median Home Value $227,100
Poverty Rate 8.9%
Unemployment Rate 1.4%
Median Age 47.7 years
Homeownership Rate 84.2%
Affordability Ratio 2.7x
Bachelor's Degree+ 26.1%
High School Graduation 93.9%
Cities/Places 12
Population 9,823 15th of 53
Median Income $83,583 9% higher than state
Poverty Rate 8.9%
Unemployment 1.4%

How McLean County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population9,8079,823+0.2%
Median household income$81,847$83,583+2.1%
Median home value$233,100$227,100-2.6%

Economy & Housing

Household Income Distribution

Under $25K 11.3%
$25K-$50K 16.4%
$50K-$100K 30.6%
$100K+ 41.8%
Detailed income brackets
Under $10K
3.1%
$10K-$15K
2.6%
$15K-$20K
2.3%
$20K-$25K
3.3%
$25K-$30K
2.8%
$30K-$35K
3.6%
$35K-$40K
2.2%
$40K-$45K
4.4%
$45K-$50K
3.5%
$50K-$60K
7.8%
$60K-$75K
10.9%
$75K-$100K
11.9%
$100K-$125K
11.7%
$125K-$150K
10.7%
$150K-$200K
12.4%
$200K+
7.0%

Employment

1.4% Unemployment Rate State: 2.8%|National: 5.2%
58.2% Labor Force Participation

Housing Overview

Owner 84.2%
Renter 15.8%
Affordability Index Very Affordable
2.7x home value to income ratio
Median gross rent $784/mo 11.3% of median household income annually

People & Demographics

Diversity Index

22out of 100
Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 32 | National average: 61

Education

Cities & Places in McLean County

CityPopulationMedian IncomePovertyHome Value
Washburn1,507$73,41310.7%$238,200
Garrison1,397$71,9746.5%$165,800
Underwood699$85,57710.2%$191,200
Turtle Lake500$67,63912.1%$120,100
Max358$80,2081.4%$137,500
White Shield246$68,75029.3%N/A
Benedict227$61,7910.4%$241,000
Riverdale187$73,3334.3%$222,700
Butte68N/A22.1%$137,500
Coleharbor66$78,7507.6%$166,700
Mercer66$46,42934.8%$84,300
Ruso4N/A0.0%N/A

Population Overview

McLean County is located in North Dakota with a total population of 9,823. It is the 15th most populous county out of 53 in North Dakota. The county encompasses 12 Census-designated places.

Age Demographics

The median age in McLean County is 47.7 years. This is 33% higher than the state median of 35.9 years. 10.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in McLean County is $83,583. This is 9% higher than the state median of $76,657. It is also 4% higher than the national median of $80,734. The poverty rate stands at 8.9%. This is 18% lower than the state poverty rate of 10.8%. The unemployment rate is 1.4%. This is 51% lower than the state rate of 2.8%. The median home value is $227,100. Housing costs are 9% lower than the state median of $249,900. With a home-value-to-income ratio of just 2.7x, McLean County is one of the most affordable housing markets in the area. 84.2% of occupied housing units are owner-occupied. This homeownership rate is 34% higher than the state average of 62.8%.

Race & Ethnicity

McLean County has a predominantly White (non-Hispanic) population, comprising 88.1% of all residents. Hispanic or Latino residents account for 2.1%. The Black or African American population (0.1%) is well below the state average of 3.3%. The Hispanic or Latino population (2.1%) is well below the state average of 4.7%.

Education

26.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 20% lower than the state rate of 32.7%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.9%.

Data Sources & Methodology

All figures for McLean County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against North Dakota and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of McLean County, North Dakota?

McLean County has a population of 9,823, making it the 15th most populous county in North Dakota.

What is the median income in McLean County?

The median household income in McLean County is $83,583 with a poverty rate of 8.9%.

How many cities are in McLean County, North Dakota?

McLean County contains 12 Census-designated places.