Demographics of Mason County, Kentucky

Mason County, Kentucky had 16,936 people on July 1, 2025, by the Census Bureau’s estimate: −199 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

16,936
Population: July 1, 2025, Vintage 2025 estimate.; −1.2%
Change since July 2020: −199 people.; 42.5 ±0.8
Median age: ACS 2020–⁠2024.; $52,178 ±$4,215
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, Kentucky's population shrank 1.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Mason County, Kentucky'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, Kentucky's population shrank 1.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Mason County, Kentucky'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	17,135	100.0	100.0
2021	16,953	98.9	100.2
2022	16,871	98.5	100.7
2023	16,875	98.5	101.6
2024	16,914	98.7	102.5
2025	16,936	98.8	103.1

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Population of Mason County, Kentucky on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	17,135	+9	+4	0	+1
2021	16,953	−182	−53	+5	−141
2022	16,871	−82	−103	+9	+25
2023	16,875	+4	−33	+21	+19
2024	16,914	+39	−57	+12	+85
2025	16,936	+22	−56	+10	+70

Age, 2020–2024

The median age is 42.5 ±0.8: for men 40.5 ±0.8 and for women 43.8 ±0.5. 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	Kentucky	United States
Under 5	962 ±64	5.7% ±0.4	5.9% ±<0.1	5.6% ±<0.1
5 to 17	2,828 ±252	16.7% ±1.5	16.7% ±0.1	16.3% ±<0.1
18 to 24	1,203 ±207	7.1% ±1.2	9.1% ±0.1	9.1% ±<0.1
25 to 44	4,014 ±259	23.7% ±1.5	25.7% ±0.1	26.9% ±<0.1
45 to 64	4,603 ±314	27.1% ±1.9	25.3% ±0.1	24.8% ±<0.1
65 and over	3,346 ±324	19.7% ±1.9	17.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $52,178 ±$4,215, and income per person $31,189 ±$2,639, in 2024 dollars. The median is $63,726 ±$429 in Kentucky 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	Kentucky	United States
Under $25,000	2,058 ±355	28.9% ±4.9	19.6% ±0.3	14.6% ±<0.1
$25,000 to $49,999	1,308 ±252	18.3% ±3.5	20.4% ±0.3	16.7% ±<0.1
$50,000 to $74,999	1,325 ±250	18.6% ±3.5	17.1% ±0.2	15.5% ±<0.1
$75,000 to $99,999	781 ±148	11.0% ±2.0	12.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	917 ±184	12.9% ±2.5	15.9% ±0.2	17.5% ±<0.1
$150,000 to $199,999	436 ±150	6.1% ±2.1	7.1% ±0.2	9.6% ±<0.1
$200,000 or more	306 ±120	4.3% ±1.7	7.2% ±0.1	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	Kentucky	United States
All ages	3,137 ±487	18.8% ±2.9	16.1% ±0.3	12.5% ±0.1
Under 18	827 ±245	22.0% ±6.1	20.3% ±0.4	16.1% ±0.1
18 to 59	1,523 ±274	18.2% ±3.1	15.4% ±0.3	11.6% ±0.1
60 and over	787 ±187	17.3% ±3.9	13.4% ±0.3	11.0% ±<0.1

Housing, 2020–2024

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Housing in Mason County, ACS 2020–2024
Measure	Mason County	Kentucky	United States
Housing units	8,190 ±27	2,023,116 ±474	143,775,355 ±10,234
Occupied	87.1% ±2.9	89.7% ±0.3	89.9% ±0.1
Vacant	12.9% ±2.9	10.3% ±0.3	10.1% ±0.1
Owner occupied	66.1% ±2.7	68.3% ±0.4	65.2% ±0.3
Renter occupied	33.9% ±3.6	31.7% ±0.3	34.8% ±0.1
Median home value	$161,500 ±$18,146	$205,600 ±$1,096	$332,700 ±$236
Median gross rent	$727 ±$51	$967 ±$5	$1,413 ±$2
Median year built	1977 ±3	1982 ±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	Kentucky	United States
Hispanic or Latino	402 ±0	2.4% ±<0.1	5.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	14,739 ±108	86.9% ±0.6	81.5% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	997 ±116	5.9% ±0.7	7.6% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	158 ±73	0.9% ±0.4	1.6% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 49	0% to 0.3%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 20	0% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 32	0% to 0.2%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	629 ±182	3.7% ±1.1	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	Kentucky	United States
Born in the state	12,401 ±491	73.1% ±2.9	67.3% ±0.2	57.3% ±<0.1
Born in another state	4,233 ±491	25.0% ±2.9	27.1% ±0.2	26.9% ±<0.1
Born a citizen outside the states	17 to 119	0.1% to 0.7%	0.9% ±<0.1	1.7% ±<0.1
Born abroad	108 to 400	0.6% to 2.4%	4.7% ±0.1	14.1% ±<0.1
Naturalized citizens	48 to 316	0.3% to 1.9%	1.9% ±0.1	7.4% ±<0.1
Not citizens	26 to 118	0.2% to 0.7%	2.8% ±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 Kentucky

68th of 120 by population, July 2025. Every one is listed on the Kentucky page.

Counties of Kentucky near Mason County in population, July 2025
County	July 2025	Change since 2020
Clay County	19,465	−4.2%
Adair County	19,423	+2.8%
Russell County	18,608	+3.4%
Garrard County	18,207	+7.3%
McCreary County	17,124	+1.7%
Mason County	16,936	−1.2%
Henry County	16,447	+4.8%
Casey County	16,205	+1.8%
Rockcastle County	16,148	+0.6%
Fleming County	15,787	+4.6%
Lawrence County	15,765	−3.3%

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