Demographics of Mason County, West Virginia

Mason County, West Virginia had 24,707 people on July 1, 2025, by the Census Bureau’s estimate: −696 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Mason County, in four figures

24,707
Population: July 1, 2025, Vintage 2025 estimate.; −2.7%
Change since July 2020: −696 people.; 44.2 ±0.9
Median age: ACS 2020–⁠2024.; $49,761 ±$5,083
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Mason County, West Virginia's population shrank 2.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Mason County, West Virginia's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Mason County, West Virginia's population shrank 2.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Mason County, West Virginia's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	25,403	100.0	100.0
2021	25,274	99.5	100.2
2022	24,930	98.1	100.7
2023	24,788	97.6	101.6
2024	24,765	97.5	102.5
2025	24,707	97.3	103.1

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Population of Mason County, West Virginia on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	25,403	−50	−28	0	−24
2021	25,274	−129	−181	+2	+28
2022	24,930	−344	−230	+2	−105
2023	24,788	−142	−158	+1	+22
2024	24,765	−23	−114	−2	+100
2025	24,707	−58	−103	−7	+52

Age, 2020–2024

The median age is 44.2 ±0.9: for men 42.6 ±1.0 and for women 45.7 ±1.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Mason County by age, ACS 2020–2024
Age	People	Share	West Virginia	United States
Under 5	1,294 ±74	5.2% ±0.3	5.0% ±<0.1	5.6% ±<0.1
5 to 17	3,850 ±328	15.4% ±1.3	15.1% ±0.2	16.3% ±<0.1
18 to 24	1,666 ±386	6.7% ±1.5	8.8% ±0.1	9.1% ±<0.1
25 to 44	5,905 ±390	23.6% ±1.6	23.9% ±0.2	26.9% ±<0.1
45 to 64	6,630 ±355	26.5% ±1.4	26.2% ±0.2	24.8% ±<0.1
65 and over	5,698 ±486	22.8% ±1.9	21.0% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $49,761 ±$5,083, and income per person $29,428 ±$2,323, in 2024 dollars. The median is $59,608 ±$691 in West Virginia and $80,734 ±$166 in the United States.

Households by income

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Households in Mason County by income, ACS 2020–2024
Household income	Households	Share	West Virginia	United States
Under $25,000	2,357 ±401	23.1% ±3.8	21.1% ±0.4	14.6% ±<0.1
$25,000 to $49,999	2,769 ±479	27.1% ±4.6	21.6% ±0.4	16.7% ±<0.1
$50,000 to $74,999	1,507 ±299	14.8% ±2.9	17.3% ±0.4	15.5% ±<0.1
$75,000 to $99,999	1,451 ±314	14.2% ±3.0	12.7% ±0.4	12.6% ±<0.1
$100,000 to $149,999	1,136 ±260	11.1% ±2.5	15.1% ±0.4	17.5% ±<0.1
$150,000 to $199,999	655 ±216	6.4% ±2.1	6.3% ±0.2	9.6% ±<0.1
$200,000 or more	336 ±145	3.3% ±1.4	5.9% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Mason County by age, ACS 2020–2024
Age	Below poverty	Rate	West Virginia	United States
All ages	4,742 ±1,004	19.4% ±4.1	16.7% ±0.4	12.5% ±0.1
Under 18	1,626 ±489	32.0% ±8.6	21.5% ±0.7	16.1% ±0.1
18 to 59	2,028 ±449	17.0% ±3.6	17.0% ±0.4	11.6% ±0.1
60 and over	1,088 ±253	14.7% ±3.3	12.8% ±0.4	11.0% ±<0.1

Housing, 2020–2024

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Housing in Mason County, ACS 2020–2024
Measure	Mason County	West Virginia	United States
Housing units	12,179 ±44	861,325 ±394	143,775,355 ±10,234
Occupied	83.8% ±3.1	84.6% ±0.4	89.9% ±0.1
Vacant	16.2% ±3.3	15.4% ±0.4	10.1% ±0.1
Owner occupied	81.8% ±2.9	74.9% ±0.3	65.2% ±0.3
Renter occupied	18.2% ±3.2	25.1% ±0.3	34.8% ±0.1
Median home value	$120,300 ±$8,369	$162,600 ±$1,346	$332,700 ±$236
Median gross rent	$671 ±$83	$872 ±$8	$1,413 ±$2
Median year built	1978 ±3	1976 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Mason County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	West Virginia	United States
Hispanic or Latino	24 to 284	0.1% to 1.1%	2.1% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	23,895 ±122	95.4% ±0.5	89.7% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	119 to 387	0.5% to 1.5%	3.1% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	93 ±35	0.4% ±0.1	0.8% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 9	0% to < 0.1%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 24	0% to 0.1%	< 0.1%	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 148	0% to 0.6%	0.3% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	581 ±170	2.3% ±0.7	3.9% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Mason County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	West Virginia	United States
Born in the state	16,200 ±760	64.7% ±3.0	67.4% ±0.3	57.3% ±<0.1
Born in another state	8,697 ±752	34.7% ±3.0	30.2% ±0.3	26.9% ±<0.1
Born a citizen outside the states	34 to 134	0.1% to 0.5%	0.5% ±<0.1	1.7% ±<0.1
Born abroad	25 to 99	0.1% to 0.4%	1.8% ±0.1	14.1% ±<0.1
Naturalized citizens	1 to 69	< 0.1% to 0.3%	1.0% ±0.1	7.4% ±<0.1
Not citizens	1 to 53	< 0.1% to 0.2%	0.8% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Mason County among the counties of West Virginia

23rd of 55 by population, July 2025. Every one is listed on the West Virginia page.

Counties of West Virginia near Mason County in population, July 2025
County	July 2025	Change since 2020
Marshall County	29,159	−4.4%
Hancock County	27,729	−4.5%
Jackson County	27,450	−1.0%
Randolph County	26,882	−3.6%
Mineral County	26,792	−0.4%
Mason County	24,707	−2.7%
Hampshire County	24,105	+4.4%
Nicholas County	23,848	−2.9%
Upshur County	23,758	−0.3%
Mingo County	21,455	−8.7%
Brooke County	21,142	−6.0%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026