Monongalia County, West Virginia Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 3rd-largest in West Virginia
The population of Monongalia County, West Virginia is 106,520 as of the 2023 American Community Survey, making it the 3rd-largest county in West Virginia. The median household income is $62,704, the median home value is $254,200, and the median age is 32.5.
The population of Monongalia County has grown 12.3% since 2010 (96,768 → 108,697), a +0.83% annualized rate.
106,520
Population
+0.83%
Annual growth
296
People / sq mi
$62,704
Median Income
$254,200
Median Home Value
Monongalia County covers 360 sq mi of land at 295.8 people per square mile.
About Monongalia County, WV
Monongalia County is a county in West Virginia with a population of 106,520. It ranks #3 among counties in West Virginia by population. The median age is 32.5, younger than the national median. The population is 51.6% male and 48.4% female.
The median household income in Monongalia County is $62,704, below the US median of $74,580. 10.6% of residents live below the federal poverty level. Home values sit at a median of $254,200, with monthly rent averaging $943. The homeownership rate of 57.6% is lower than the national rate of 64.8%.
Educational attainment in Monongalia County reflects 47.9% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 11.7% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 21.8 minutes each way.
Monongalia County Population History (2010-2024)
The county of Monongalia County had a population of 96,768 in 2010 and 108,697 in 2024, a 12.3% growth over 14 years. The peak was 108,697 in 2024. Average annual growth rate: 0.84%.
108,697
Population (2024)
96,768
Population (2010)
108,697
Peak (2024)
0.84%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 96,768 |
| 2011 | 99,070 |
| 2012 | 101,009 |
| 2013 | 102,392 |
| 2014 | 103,631 |
| 2015 | 104,871 |
| 2016 | 105,866 |
| 2017 | 106,086 |
| 2018 | 105,930 |
| 2019 | 106,281 |
| 2020 | 105,912 |
| 2021 | 106,537 |
| 2022 | 106,921 |
| 2023 | 107,749 |
| 2024 | 108,697 |
Race & Ethnicity
| White | 87.4% |
| Black or African American | 3.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Age & Sex
32.5
Median Age
48.4%
Female
51.6%
Male
13.2%
Age 65+
Age Distribution
Children (under 15): 13.5% · Seniors (65+): 13.2%
Income & Poverty
| Median household income | $62,704+$4,787 vs state |
| Mean household income | $94,045 |
| Per-capita income | $40,258 |
| Poverty rate | 10.6%-1.3% vs state |
| Unemployment rate | 3.1% |
| Employment-to-population | 60.0% |
Top Industries by Employment
The largest employment sector in Monongalia County is professional & business services, accounting for 39.3% of workers.
How residents commute
1.3%
Drive alone
5.1%
Carpool
72.2%
Public transit
11.7%
Work from home
21.8 min
Avg commute
Housing
$254,200+$98,600 vs state
Median home value
$943
Median rent
57.6%
Homeownership rate
49,795
Total housing units
89.1%
Occupied
10.9%
Vacant
42.4%
Renter-occupied
Social & access
94.7%
With health insurance
95.4%
With broadband internet
37.3%
Foreign-born
5.5%
Veterans (18+)
12.1%
With a disability
93.2%
Speak language other than English at home
Education
94.0%
High School+
47.9%
Bachelor's+
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Other counties in West Virginia
Part of West Virginia
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County rankings
Frequently Asked Questions
Monongalia County, West Virginia has a population of 106,520 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 3rd-largest county in West Virginia. Population density is 296 people per square mile.
The population of Monongalia County has grown 12.3% since 2010 (96,768 → 108,697), a +0.83% annualized rate.
The median household income in Monongalia County, West Virginia is $62,704, with mean (average) household income of $94,045 and per-capita income of $40,258. 10.6% of residents live below the federal poverty level.
In Monongalia County, the largest racial and ethnic groups are White (87.4%), Black or African American (3.6%), Hispanic or Latino (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Monongalia County, West Virginia is 32.5 years. Residents are 48.4% female and 51.6% male.
The median home value in Monongalia County is $254,200 and median monthly rent is $943. 57.6% of occupied housing units are owner-occupied. The county has 49,795 total housing units, 10.9% of which are vacant.
The largest employment sector in Monongalia County, West Virginia is professional, scientific, and management services, employing 39.3% of workers. The unemployment rate is 3.1%.
Charleston is among the largest cities associated with Monongalia County, West Virginia, with a population of 47,918.
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Statewide data for West Virginia
Population, race, income, age, and trends across West Virginia
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.