Monongalia County's estimated 2026 population is 108,051 with a growth rate of 0.06% in the past year according to the most recent United States census data. Monongalia County is the 3rd largest county in West Virginia. The 2010 population was 96,768 and has seen a growth of 11.66% since that time.
Data after 2023 is projected based on recent change
Overall: 32.7 years
Female: 33.2 years
Male: 32.2 years
There are 89,898 adults, (14,370 of whom are seniors) in Monongalia County.
Female: 51,794 (48.3%)
Male: 55,369 (51.7%)
The racial composition of Monongalia County includes 86.84% White, 3.49% Asian, 3.25% Black or African American, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 93,057 | 86.84% |
| Two or more races | 5,557 | 5.19% |
| Asian | 3,738 | 3.49% |
| Black or African American | 3,486 | 3.25% |
| Other race | 1,226 | 1.14% |
| Native American | 98 | 0.09% |
| Native Hawaiian or Pacific Islander | 1 | 0% |
Monongalia County's average per capita income is $55,079. Household income levels show a median of $65,346. The poverty rate stands at 19.71%.
Name | Median | Mean |
|---|---|---|
| Married Families | $130,958 | $161,463 |
| Families | $105,912 | $138,004 |
| Households | $65,346 | $97,594 |
| Non Families | $37,187 | $51,633 |
Average Income
Median Household Income
Poverty Rate