Cass County, North Dakota
Located in North Dakota, Cass County has a population of 193,400 residents and a median age of 32.8 years, making it the #361 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 11.0%. The median home value is $298,000, and the median household income is $75,555, which is 1% above the national median.
Demographics
Cass County has a population of 193,400, making it the #361 most populous county in the US. The median age is 32.8 years, which is 15.7% below 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 Cass County is $75,555, ranking #809 out of 3,222 counties — 0.5% above the national median. The poverty rate is 11.0% and unemployment stands at 3.0%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Cass County is $298,000 (+5.7% vs national). Renters pay a median of $958/mo and the homeownership rate is 52.0%.
Median Home Value Trend
Rankings →Household Type
Education
In Cass County, 42.6% of adults age 25+ hold a bachelor's degree or higher, which is 26.6% above the national average, ranking #210 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Cass County is 79.1 years. 14.1% of adults report poor or fair health and 7.2% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
15.3% of adults in Cass County smoke , 34.1% are obese , and 22.7% report excessive drinking. The drug overdose death rate is 15.4 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Cass County is 3.0 per 100,000 and the suicide rate is 17.1 per 100,000. Motor vehicle deaths occur at a rate of 6.0 per 100,000.
Homicide Rate Trend
Families & Children
8.0% of children in Cass County live in poverty and the infant mortality rate is 5.4 per 1,000 live births. The teen birth rate is 8.8 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Cass County is 65.2%. The mean commute time is 19.0 min, which is 31.2% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Cass County voted Republican with a margin of 8.4%. The vote was 44.9% Dem / 53.3% Rep. Compared to 2020, the margin shifted 5.7 toward Republicans .
Vote Share Over Time
About Cass County, North Dakota
Cass County, North Dakota has a total population of 193,400, making it the 361st most populous county in the United States. The median age in Cass County is 32.8 years, which is 15.7% below the national median of 38.9 years.
The median household income in Cass County is $75,555, which ranks #809 of 3,222 counties nationwide. This is 0.5% above the national median of $75,149. The poverty rate is 11.0%, lower than the national rate of 12.6%. The unemployment rate stands at 3.0%.
The median home value in Cass County is $298,000, 5.7% above the national median. Renters in Cass County pay a median gross rent of $958 per month. The homeownership rate is 52.0%, compared to the national rate of 64.4%.
In Cass County, 42.6% of residents aged 25 and older hold a bachelor's degree or higher, 26.6% above the national average of 33.7%. Health insurance coverage stands at 94.5% of the population. The average commute time for workers is 19.0 min.
Cass County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 81.2% of the population, followed by Black (non-Hispanic) (7.0%) and Two or More Races (3.7%).
All data for Cass 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.