Monongalia County, West Virginia
Located in West Virginia, Monongalia County has a population of 107,163 residents and a median age of 32.7 years, making it the #584 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 19.7%. The median home value is $267,700, and the median household income is $65,346, which is 13% below the national median.
Demographics
Monongalia County has a population of 107,163, making it the #584 most populous county in the US. The median age is 32.7 years, which is 15.9% 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 Monongalia County is $65,346, ranking #1,611 out of 3,222 counties — 13.0% below the national median. The poverty rate is 19.7% and unemployment stands at 4.7%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Monongalia County is $267,700 (-5.0% vs national). Renters pay a median of $987/mo and the homeownership rate is 57.9%.
Median Home Value Trend
Rankings →Household Type
Education
In Monongalia County, 48.9% of adults age 25+ hold a bachelor's degree or higher, which is 45.1% above the national average, ranking #116 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Monongalia County is 77.6 years. 20.6% of adults report poor or fair health and 6.2% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.2% of adults in Monongalia County smoke , 36.7% are obese , and 18.3% report excessive drinking. The drug overdose death rate is 42.2 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Monongalia County is 2.0 per 100,000 and the suicide rate is 13.1 per 100,000. Motor vehicle deaths occur at a rate of 7.0 per 100,000.
Homicide Rate Trend
Families & Children
12.9% of children in Monongalia County live in poverty and the infant mortality rate is 6.9 per 1,000 live births. The teen birth rate is 7.5 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Monongalia County is 49.4%. The mean commute time is 23.3 min, which is 15.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Monongalia County voted Republican with a margin of 4.4%. The vote was 46.5% Dem / 50.9% Rep. Compared to 2020, the margin shifted 3.2 toward Republicans .
Vote Share Over Time
About Monongalia County, West Virginia
Monongalia County, West Virginia has a total population of 107,163, making it the 584th most populous county in the United States. The median age in Monongalia County is 32.7 years, which is 15.9% below the national median of 38.9 years.
The median household income in Monongalia County is $65,346, which ranks #1,611 of 3,222 counties nationwide. This is 13.0% below the national median of $75,149. The poverty rate is 19.7%, higher than the national rate of 12.6%. The unemployment rate stands at 4.7%.
The median home value in Monongalia County is $267,700, 5.0% below the national median. Renters in Monongalia County pay a median gross rent of $987 per month. The homeownership rate is 57.9%, compared to the national rate of 64.4%.
In Monongalia County, 48.9% of residents aged 25 and older hold a bachelor's degree or higher, 45.1% above the national average of 33.7%. Health insurance coverage stands at 94.7% of the population. The average commute time for workers is 23.3 min.
Monongalia County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 85.8% of the population, followed by Two or More Races (3.7%) and Asian (non-Hispanic) (3.5%).
All data for Monongalia County, West Virginia 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.