Mercer County, North Dakota
Located in North Dakota, Mercer County has a population of 8,337 residents and a median age of 42.9 years, making it the #2,626 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.7%. The median home value is $198,500, and the median household income is $80,946, which is 8% above the national median.
Demographics
Mercer County has a population of 8,337, making it the #2,626 most populous county in the US. The median age is 42.9 years, which is 10.3% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Mercer County is $80,946, ranking #541 out of 3,222 counties — 7.7% above the national median. The poverty rate is 9.7% and unemployment stands at 2.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Mercer County is $198,500 (-29.6% vs national). Renters pay a median of $1,031/mo and the homeownership rate is 81.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Mercer County, 23.3% of adults age 25+ hold a bachelor's degree or higher, which is 31.0% below the national average, ranking #1,472 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Mercer County is 79.3 years. 14.9% of adults report poor or fair health and 6.6% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
16.8% of adults in Mercer County smoke , 36.3% are obese , and 24.7% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 35.7 per 100,000. Motor vehicle deaths occur at a rate of 20.5 per 100,000.
Suicide Rate Trend
Families & Children
8.2% of children in Mercer County live in poverty . The teen birth rate is 8.9 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Mercer County is 72.8%. The mean commute time is 20.8 min, which is 24.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Mercer County voted Republican with a margin of 69.0%. The vote was 14.8% Dem / 83.8% Rep. Compared to 2020, the margin shifted 1.6 toward Republicans .
Vote Share Over Time
About Mercer County, North Dakota
Mercer County, North Dakota has a total population of 8,337, making it the 2,626th most populous county in the United States. The median age in Mercer County is 42.9 years, which is 10.3% above the national median of 38.9 years.
The median household income in Mercer County is $80,946, which ranks #541 of 3,222 counties nationwide. This is 7.7% above the national median of $75,149. The poverty rate is 9.7%, lower than the national rate of 12.6%. The unemployment rate stands at 2.5%.
The median home value in Mercer County is $198,500, 29.6% below the national median. Renters in Mercer County pay a median gross rent of $1,031 per month. The homeownership rate is 81.1%, compared to the national rate of 64.4%.
In Mercer County, 23.3% of residents aged 25 and older hold a bachelor's degree or higher, 31.0% below the national average of 33.7%. Health insurance coverage stands at 92.4% of the population. The average commute time for workers is 20.8 min.
Mercer County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 91.3% of the population, followed by Two or More Races (2.9%) and Hispanic or Latino (2.8%).
All data for Mercer County, North Dakota comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.