Demographics of Spencer County, Indiana

Spencer County, Indiana had 20,061 people on July 1, 2025, by the Census Bureau’s estimate: +230 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.

Spencer County, in four figures

20,061
Population: July 1, 2025, Vintage 2025 estimate.; +1.2%
Change since July 2020: +230 people.; 44.4 ±0.2
Median age: ACS 2020–⁠2024.; $74,506 ±$7,344
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.

Spencer County, Indiana's population grew 1.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Spencer County, Indiana'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

Spencer County, Indiana's population grew 1.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Spencer County, Indiana'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	19,831	100.0	100.0
2021	19,855	100.1	100.2
2022	19,886	100.3	100.7
2023	20,014	100.9	101.6
2024	20,157	101.6	102.5
2025	20,061	101.2	103.1

3 more columns on a wider screen

Population of Spencer County, Indiana on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	19,831	+22	+9	0	+9
2021	19,855	+24	−36	+7	+33
2022	19,886	+31	−50	+15	+76
2023	20,014	+128	−37	+11	+158
2024	20,157	+143	−65	+6	+203
2025	20,061	−96	−72	+3	−26

Age, 2020–2024

The median age is 44.4 ±0.2: for men 43.8 ±0.8 and for women 44.9 ±0.3. 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 Spencer County by age, ACS 2020–2024
Age	People	Share	Indiana	United States
Under 5	958 ±32	4.8% ±0.2	6.0% ±<0.1	5.6% ±<0.1
5 to 17	3,355 ±235	16.8% ±1.2	17.3% ±0.1	16.3% ±<0.1
18 to 24	1,380 ±141	6.9% ±0.7	9.6% ±0.1	9.1% ±<0.1
25 to 44	4,557 ±233	22.8% ±1.2	25.8% ±0.1	26.9% ±<0.1
45 to 64	5,589 ±314	28.0% ±1.6	24.5% ±0.1	24.8% ±<0.1
65 and over	4,116 ±270	20.6% ±1.4	16.8% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $74,506 ±$7,344, and income per person $36,369 ±$1,558, in 2024 dollars. The median is $71,957 ±$352 in Indiana and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in Spencer County by income, ACS 2020–2024
Household income	Households	Share	Indiana	United States
Under $25,000	1,043 ±175	12.9% ±2.1	15.0% ±0.2	14.6% ±<0.1
$25,000 to $49,999	1,615 ±252	20.0% ±3.1	19.4% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,398 ±215	17.3% ±2.6	17.7% ±0.2	15.5% ±<0.1
$75,000 to $99,999	1,125 ±165	13.9% ±2.0	13.9% ±0.2	12.6% ±<0.1
$100,000 to $149,999	1,899 ±236	23.5% ±2.9	17.5% ±0.2	17.5% ±<0.1
$150,000 to $199,999	660 ±168	8.2% ±2.1	8.3% ±0.1	9.6% ±<0.1
$200,000 or more	338 ±91	4.2% ±1.1	8.2% ±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 Spencer County by age, ACS 2020–2024
Age	Below poverty	Rate	Indiana	United States
All ages	1,462 ±238	7.5% ±1.2	12.3% ±0.2	12.5% ±0.1
Under 18	402 ±118	9.5% ±2.7	16.0% ±0.3	16.1% ±0.1
18 to 59	546 ±128	5.7% ±1.3	11.9% ±0.2	11.6% ±0.1
60 and over	514 ±121	8.9% ±2.0	9.6% ±0.2	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in Spencer County, ACS 2020–2024
Measure	Spencer County	Indiana	United States
Housing units	8,727 ±43	2,976,568 ±617	143,775,355 ±10,234
Occupied	92.6% ±1.6	91.2% ±0.2	89.9% ±0.1
Vacant	7.4% ±1.6	8.8% ±0.2	10.1% ±0.1
Owner occupied	81.3% ±2.6	70.6% ±0.3	65.2% ±0.3
Renter occupied	18.7% ±2.7	29.4% ±0.3	34.8% ±0.1
Median home value	$185,200 ±$10,399	$218,200 ±$739	$332,700 ±$236
Median gross rent	$751 ±$136	$1,062 ±$5	$1,413 ±$2
Median year built	1979 ±2	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

2 more columns on a wider screen

People in Spencer County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Indiana	United States
Hispanic or Latino	721 ±0	3.6% ±<0.1	8.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	18,591 ±58	93.2% ±0.3	75.4% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	113 ±47	0.6% ±0.2	9.1% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	15 to 83	0.1% to 0.4%	2.6% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 20	0% to 0.1%	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	26 to 130	0.1% to 0.7%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	395 ±59	2.0% ±0.3	3.8% ±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 Spencer County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Indiana	United States
Born in the state	13,788 ±466	69.1% ±2.3	67.0% ±0.2	57.3% ±<0.1
Born in another state	5,627 ±451	28.2% ±2.3	25.8% ±0.2	26.9% ±<0.1
Born a citizen outside the states	38 to 178	0.2% to 0.9%	0.8% ±<0.1	1.7% ±<0.1
Born abroad	432 ±120	2.2% ±0.6	6.3% ±0.1	14.1% ±<0.1
Naturalized citizens	189 ±67	0.9% ±0.3	2.6% ±0.1	7.4% ±<0.1
Not citizens	243 ±113	1.2% ±0.6	3.7% ±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%.

Spencer County among the counties of Indiana

73rd of 92 by population, July 2025. Every one is listed on the Indiana page.

Counties of Indiana near Spencer County in population, July 2025
County	July 2025	Change since 2020
Owen County	21,886	+2.6%
Sullivan County	20,831	+0.1%
Carroll County	20,655	+1.6%
Jay County	20,118	−1.8%
Fulton County	20,091	−1.9%
Spencer County	20,061	+1.2%
Orange County	19,834	−0.1%
Perry County	19,389	+1.2%
Fountain County	17,013	+3.2%
Rush County	16,767	< +0.1%
Parke County	16,642	+3.0%

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