Demographics of Simpson County, Kentucky

Simpson County, Kentucky had 20,788 people on July 1, 2025, by the Census Bureau’s estimate: +1,160 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.

Simpson County, in four figures

20,788
Population: July 1, 2025, Vintage 2025 estimate.; +5.9%
Change since July 2020: +1,160 people.; 38.8 ±0.6
Median age: ACS 2020–⁠2024.; $59,858 ±$5,221
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.

Simpson County, Kentucky's population grew 5.9% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Simpson 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

Simpson County, Kentucky's population grew 5.9% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Simpson 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	19,628	100.0	100.0
2021	19,736	100.6	100.2
2022	19,930	101.5	100.7
2023	20,243	103.1	101.6
2024	20,418	104.0	102.5
2025	20,788	105.9	103.1

3 more columns on a wider screen

Population of Simpson 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	19,628	+33	+3	0	+24
2021	19,736	+108	−32	+1	+130
2022	19,930	+194	−71	+2	+255
2023	20,243	+313	−10	+26	+297
2024	20,418	+175	+1	+59	+115
2025	20,788	+370	−10	+5	+378

Age, 2020–2024

The median age is 38.8 ±0.6: for men 38.1 ±0.9 and for women 39.6 ±0.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in Simpson County by age, ACS 2020–2024
Age	People	Share	Kentucky	United States
Under 5	1,070 ±51	5.4% ±0.3	5.9% ±<0.1	5.6% ±<0.1
5 to 17	3,609 ±424	18.1% ±2.1	16.7% ±0.1	16.3% ±<0.1
18 to 24	1,652 ±280	8.3% ±1.4	9.1% ±0.1	9.1% ±<0.1
25 to 44	5,218 ±324	26.1% ±1.6	25.7% ±0.1	26.9% ±<0.1
45 to 64	5,204 ±385	26.1% ±1.9	25.3% ±0.1	24.8% ±<0.1
65 and over	3,219 ±349	16.1% ±1.7	17.3% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $59,858 ±$5,221, and income per person $31,249 ±$2,216, in 2024 dollars. The median is $63,726 ±$429 in Kentucky and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Simpson County by income, ACS 2020–2024
Household income	Households	Share	Kentucky	United States
Under $25,000	1,734 ±367	21.6% ±4.5	19.6% ±0.3	14.6% ±<0.1
$25,000 to $49,999	1,314 ±255	16.4% ±3.2	20.4% ±0.3	16.7% ±<0.1
$50,000 to $74,999	2,090 ±353	26.0% ±4.3	17.1% ±0.2	15.5% ±<0.1
$75,000 to $99,999	673 ±181	8.4% ±2.2	12.8% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,409 ±334	17.6% ±4.1	15.9% ±0.2	17.5% ±<0.1
$150,000 to $199,999	360 ±118	4.5% ±1.5	7.1% ±0.2	9.6% ±<0.1
$200,000 or more	445 ±156	5.5% ±1.9	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).

2 more columns on a wider screen

Poverty rate in Simpson County by age, ACS 2020–2024
Age	Below poverty	Rate	Kentucky	United States
All ages	3,031 ±650	15.5% ±3.3	16.1% ±0.3	12.5% ±0.1
Under 18	719 ±243	15.8% ±5.1	20.3% ±0.4	16.1% ±0.1
18 to 59	1,852 ±416	18.0% ±3.9	15.4% ±0.3	11.6% ±0.1
60 and over	460 ±197	10.0% ±4.2	13.4% ±0.3	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Simpson County, ACS 2020–2024
Measure	Simpson County	Kentucky	United States
Housing units	8,627 ±25	2,023,116 ±474	143,775,355 ±10,234
Occupied	93.0% ±2.4	89.7% ±0.3	89.9% ±0.1
Vacant	7.0% ±2.4	10.3% ±0.3	10.1% ±0.1
Owner occupied	66.7% ±3.2	68.3% ±0.4	65.2% ±0.3
Renter occupied	33.3% ±3.5	31.7% ±0.3	34.8% ±0.1
Median home value	$229,400 ±$21,713	$205,600 ±$1,096	$332,700 ±$236
Median gross rent	$1,012 ±$69	$967 ±$5	$1,413 ±$2
Median year built	1979 ±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

2 more columns on a wider screen

People in Simpson County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Kentucky	United States
Hispanic or Latino	726 ±0	3.6% ±<0.1	5.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	16,757 ±37	83.9% ±0.2	81.5% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	1,381 ±277	6.9% ±1.4	7.6% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	0 to 77	0% to 0.4%	1.6% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 41	0% to 0.2%	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 20	0% to 0.1%	0.3% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,060 ±278	5.3% ±1.4	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).

2 more columns on a wider screen

People in Simpson County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Kentucky	United States
Born in the state	12,617 ±643	63.2% ±3.2	67.3% ±0.2	57.3% ±<0.1
Born in another state	6,918 ±663	34.6% ±3.3	27.1% ±0.2	26.9% ±<0.1
Born a citizen outside the states	21 to 151	0.1% to 0.8%	0.9% ±<0.1	1.7% ±<0.1
Born abroad	351 ±143	1.8% ±0.7	4.7% ±0.1	14.1% ±<0.1
Naturalized citizens	31 to 183	0.2% to 0.9%	1.9% ±0.1	7.4% ±<0.1
Not citizens	109 to 379	0.5% to 1.9%	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%.

Simpson County among the counties of Kentucky

56th of 120 by population, July 2025. Every one is listed on the Kentucky page.

Counties of Kentucky near Simpson County in population, July 2025
County	July 2025	Change since 2020
Bell County	22,829	−4.8%
Allen County	22,536	+9.5%
Johnson County	22,051	−2.6%
Breckinridge County	21,503	+5.2%
Spencer County	20,998	+7.7%
Simpson County	20,788	+5.9%
Bourbon County	20,243	−0.3%
Hart County	20,117	+4.3%
Marion County	20,115	+2.7%
Letcher County	19,952	−7.0%
Harrison County	19,627	+4.9%

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