Demographics of Aiken County, South Carolina

Aiken County, South Carolina had 181,515 people on July 1, 2025, by the Census Bureau’s estimate: +12,345 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.

Aiken County, in four figures

181,515
Population: July 1, 2025, Vintage 2025 estimate.; +7.3%
Change since July 2020: +12,345 people.; 42.0 ±0.3
Median age: ACS 2020–⁠2024.; $70,609 ±$2,453
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.

Aiken County, South Carolina's population grew 7.3% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Aiken County, South Carolina'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).

Source: The Census Bureau

About this chart

The figures

Aiken County, South Carolina's population grew 7.3% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Aiken County, South Carolina'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	169,170	100.0	100.0
2021	171,026	101.1	100.2
2022	173,545	102.6	100.7
2023	176,336	104.2	101.6
2024	178,363	105.4	102.5
2025	181,515	107.3	103.1

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Population of Aiken County, South Carolina on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	169,170	+360	−91	+6	+450
2021	171,026	+1,856	−574	+101	+2,348
2022	173,545	+2,519	−501	+233	+2,717
2023	176,336	+2,791	−200	+321	+2,627
2024	178,363	+2,027	−11	+462	+1,560
2025	181,515	+3,152	+415	+81	+2,671

Age, 2020–2024

The median age is 42.0 ±0.3: for men 40.8 ±0.5 and for women 43.3 ±0.4. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Aiken County by age, ACS 2020–2024
Age	People	Share	South Carolina	United States
Under 5	9,764 ±98	5.6% ±0.1	5.5% ±<0.1	5.6% ±<0.1
5 to 17	27,615 ±803	15.9% ±0.5	16.0% ±0.1	16.3% ±<0.1
18 to 24	13,199 ±847	7.6% ±0.5	9.1% ±0.1	9.1% ±<0.1
25 to 44	42,888 ±1,003	24.6% ±0.6	25.3% ±0.1	26.9% ±<0.1
45 to 64	44,538 ±1,092	25.6% ±0.6	25.2% ±0.1	24.8% ±<0.1
65 and over	36,156 ±1,280	20.8% ±0.7	18.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $70,609 ±$2,453, and income per person $38,470 ±$1,167, in 2024 dollars. The median is $69,324 ±$570 in South Carolina and $80,734 ±$166 in the United States.

Households by income

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Households in Aiken County by income, ACS 2020–2024
Household income	Households	Share	South Carolina	United States
Under $25,000	11,477 ±918	16.4% ±1.3	17.0% ±0.2	14.6% ±<0.1
$25,000 to $49,999	14,119 ±1,154	20.2% ±1.6	19.6% ±0.3	16.7% ±<0.1
$50,000 to $74,999	11,160 ±1,076	16.0% ±1.5	17.0% ±0.3	15.5% ±<0.1
$75,000 to $99,999	9,952 ±893	14.2% ±1.3	13.1% ±0.2	12.6% ±<0.1
$100,000 to $149,999	11,680 ±864	16.7% ±1.2	16.4% ±0.2	17.5% ±<0.1
$150,000 to $199,999	5,444 ±587	7.8% ±0.8	8.0% ±0.2	9.6% ±<0.1
$200,000 or more	6,084 ±604	8.7% ±0.9	8.9% ±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 Aiken County by age, ACS 2020–2024
Age	Below poverty	Rate	South Carolina	United States
All ages	24,601 ±1,898	14.3% ±1.1	14.1% ±0.2	12.5% ±0.1
Under 18	7,284 ±915	19.8% ±2.4	19.4% ±0.4	16.1% ±0.1
18 to 59	11,328 ±1,127	13.1% ±1.3	13.1% ±0.2	11.6% ±0.1
60 and over	5,989 ±718	12.4% ±1.4	11.6% ±0.3	11.0% ±<0.1

Housing, 2020–2024

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Housing in Aiken County, ACS 2020–2024
Measure	Aiken County	South Carolina	United States
Housing units	80,008 ±115	2,443,039 ±311	143,775,355 ±10,234
Occupied	87.4% ±1.2	86.7% ±0.2	89.9% ±0.1
Vacant	12.6% ±1.2	13.3% ±0.2	10.1% ±0.1
Owner occupied	76.5% ±1.3	71.9% ±0.3	65.2% ±0.3
Renter occupied	23.5% ±1.7	28.1% ±0.3	34.8% ±0.1
Median home value	$218,000 ±$6,056	$259,000 ±$1,421	$332,700 ±$236
Median gross rent	$1,062 ±$35	$1,180 ±$9	$1,413 ±$2
Median year built	1989 ±2	1992 ±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 Aiken County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	South Carolina	United States
Hispanic or Latino	12,577 ±0	7.2% ±<0.1	7.4% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	110,667 ±471	63.5% ±0.3	61.9% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	41,210 ±862	23.7% ±0.5	24.6% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,625 ±199	0.9% ±0.1	1.7% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	219 ±77	0.1% ±<0.1	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	2 to 90	< 0.1% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	833 ±373	0.5% ±0.2	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	6,983 ±953	4.0% ±0.5	3.7% ±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 Aiken County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	South Carolina	United States
Born in the state	62,619 ±2,062	36.0% ±1.2	52.6% ±0.2	57.3% ±<0.1
Born in another state	102,933 ±2,234	59.1% ±1.3	40.4% ±0.2	26.9% ±<0.1
Born a citizen outside the states	2,862 ±569	1.6% ±0.3	1.2% ±0.1	1.7% ±<0.1
Born abroad	5,746 ±626	3.3% ±0.4	5.8% ±0.1	14.1% ±<0.1
Naturalized citizens	2,936 ±480	1.7% ±0.3	2.6% ±0.1	7.4% ±<0.1
Not citizens	2,810 ±514	1.6% ±0.3	3.2% ±0.1	6.8% ±<0.1

Aiken County among the counties of South Carolina

11th of 46 by population, July 2025. Every one is listed on the South Carolina page.

Counties of South Carolina near Aiken County in population, July 2025
County	July 2025	Change since 2020
Lexington County	317,588	+7.7%
York County	306,887	+8.1%
Berkeley County	274,666	+18.7%
Anderson County	219,930	+7.7%
Beaufort County	204,433	+8.8%
Aiken County	181,515	+7.3%
Dorchester County	178,397	+10.1%
Pickens County	139,198	+5.7%
Florence County	138,504	+1.2%
Lancaster County	114,296	+18.3%
Sumter County	105,067	−0.3%

Elsewhere on the site

Rankings this appears in

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

Compiled automatically from Census Bureau population estimates — counties and Puerto Rico municipios, with components of change and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026