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 defined demographically by education — 47.9% of adults hold a bachelor’s degree, above the national average. Monongalia County is a county in West Virginia with a population of 106,520. It is the #3-largest of all counties in West Virginia nationally.
Median household income is $62,704, below the US median of $78,538. The poverty rate is 10.6%, below the national 12.4%. A typical home is worth $254,200, with typical rent around $943.
Degree attainment is near the top of the range for US counties: 47.9% of adults 25+ hold a bachelor’s, above the 35.0% national rate. About 11.7% of workers primarily work from home, below the national 14.0%, and the average commute runs about 22 minutes each way.
The education numbers are the throughline: a college-heavy population in Monongalia County usually coincides with higher incomes and a workforce concentrated in professional and information industries.
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+
Largest cities in West Virginia
Other counties in West Virginia
Part of West Virginia
Metro areas in West Virginia
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.
Monongalia County, WV Climate
Monongalia County, WV has an average annual temperature of 10.8°C (51°F) and receives about 1072 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.8°C
Avg Temp
1072
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 29° | 72 mm |
| February | 0° / 32° | 66 mm |
| March | 5° / 41° | 99 mm |
| April | 10° / 50° | 91 mm |
| May | 16° / 60° | 105 mm |
| June | 20° / 68° | 102 mm |
| July | 22° / 72° | 113 mm |
| August | 22° / 71° | 103 mm |
| September | 18° / 64° | 85 mm |
| October | 12° / 53° | 71 mm |
| November | 6° / 43° | 83 mm |
| December | 1° / 34° | 82 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Monongalia County, WV
The most comfortable months to visit Monongalia County, WV are typically August, June and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -7°C low). July is usually the wettest month.
Where to stay near Monongalia County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.