Demographics of Colleton County, South Carolina

Colleton County, South Carolina had 39,382 people on July 1, 2025, by the Census Bureau’s estimate: +844 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.

Colleton County, in four figures

39,382
Population: July 1, 2025, Vintage 2025 estimate.; +2.2%
Change since July 2020: +844 people.; 42.0 ±0.6
Median age: ACS 2020–⁠2024.; $51,114 ±$2,869
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.

Colleton County, South Carolina's population grew 2.2% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Colleton 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

Colleton County, South Carolina's population grew 2.2% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Colleton 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	38,538	100.0	100.0
2021	38,486	99.9	100.2
2022	38,650	100.3	100.7
2023	39,129	101.5	101.6
2024	39,429	102.3	102.5
2025	39,382	102.2	103.1

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Population of Colleton 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	38,538	−62	−55	+1	−19
2021	38,486	−52	−235	+28	+136
2022	38,650	+164	−253	+80	+330
2023	39,129	+479	−151	+171	+454
2024	39,429	+300	−160	+221	+242
2025	39,382	−47	−162	+113	0

Age, 2020–2024

The median age is 42.0 ±0.6: for men 40.2 ±2.0 and for women 42.9 ±0.7. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Colleton County by age, ACS 2020–2024
Age	People	Share	South Carolina	United States
Under 5	2,107 ±99	5.4% ±0.3	5.5% ±<0.1	5.6% ±<0.1
5 to 17	6,685 ±512	17.2% ±1.3	16.0% ±0.1	16.3% ±<0.1
18 to 24	2,799 ±369	7.2% ±1.0	9.1% ±0.1	9.1% ±<0.1
25 to 44	9,109 ±486	23.5% ±1.3	25.3% ±0.1	26.9% ±<0.1
45 to 64	10,154 ±539	26.2% ±1.4	25.2% ±0.1	24.8% ±<0.1
65 and over	7,929 ±528	20.4% ±1.4	18.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $51,114 ±$2,869, and income per person $29,122 ±$1,502, 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 Colleton County by income, ACS 2020–2024
Household income	Households	Share	South Carolina	United States
Under $25,000	4,030 ±551	24.6% ±3.3	17.0% ±0.2	14.6% ±<0.1
$25,000 to $49,999	3,903 ±528	23.8% ±3.2	19.6% ±0.3	16.7% ±<0.1
$50,000 to $74,999	2,962 ±441	18.1% ±2.7	17.0% ±0.3	15.5% ±<0.1
$75,000 to $99,999	1,626 ±237	9.9% ±1.4	13.1% ±0.2	12.6% ±<0.1
$100,000 to $149,999	2,340 ±401	14.3% ±2.4	16.4% ±0.2	17.5% ±<0.1
$150,000 to $199,999	666 ±167	4.1% ±1.0	8.0% ±0.2	9.6% ±<0.1
$200,000 or more	881 ±233	5.4% ±1.4	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 Colleton County by age, ACS 2020–2024
Age	Below poverty	Rate	South Carolina	United States
All ages	7,456 ±1,124	19.6% ±2.9	14.1% ±0.2	12.5% ±0.1
Under 18	2,225 ±453	26.1% ±4.8	19.4% ±0.4	16.1% ±0.1
18 to 59	3,744 ±631	19.8% ±3.2	13.1% ±0.2	11.6% ±0.1
60 and over	1,487 ±314	14.0% ±2.9	11.6% ±0.3	11.0% ±<0.1

Housing, 2020–2024

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Housing in Colleton County, ACS 2020–2024
Measure	Colleton County	South Carolina	United States
Housing units	20,083 ±71	2,443,039 ±311	143,775,355 ±10,234
Occupied	81.7% ±2.0	86.7% ±0.2	89.9% ±0.1
Vacant	18.3% ±2.0	13.3% ±0.2	10.1% ±0.1
Owner occupied	73.3% ±2.7	71.9% ±0.3	65.2% ±0.3
Renter occupied	26.7% ±3.2	28.1% ±0.3	34.8% ±0.1
Median home value	$162,500 ±$8,694	$259,000 ±$1,421	$332,700 ±$236
Median gross rent	$949 ±$72	$1,180 ±$9	$1,413 ±$2
Median year built	1987 ±1	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 Colleton County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	South Carolina	United States
Hispanic or Latino	1,767 ±0	4.6% ±<0.1	7.4% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	21,908 ±185	56.5% ±0.5	61.9% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	13,048 ±435	33.6% ±1.1	24.6% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	172 ±58	0.4% ±0.1	1.7% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	36 to 158	0.1% to 0.4%	0.2% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 57	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 233	0% to 0.6%	0.5% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,662 ±463	4.3% ±1.2	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 Colleton County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	South Carolina	United States
Born in the state	27,800 ±723	71.7% ±1.9	52.6% ±0.2	57.3% ±<0.1
Born in another state	9,390 ±736	24.2% ±1.9	40.4% ±0.2	26.9% ±<0.1
Born a citizen outside the states	101 to 457	0.3% to 1.2%	1.2% ±0.1	1.7% ±<0.1
Born abroad	1,314 ±270	3.4% ±0.7	5.8% ±0.1	14.1% ±<0.1
Naturalized citizens	87 to 295	0.2% to 0.8%	2.6% ±0.1	7.4% ±<0.1
Not citizens	1,123 ±285	2.9% ±0.7	3.2% ±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%.

Colleton County among the counties of South Carolina

27th of 46 by population, July 2025. Every one is listed on the South Carolina page.

Counties of South Carolina near Colleton County in population, July 2025
County	July 2025	Change since 2020
Georgetown County	65,912	+3.8%
Darlington County	62,888	+0.1%
Cherokee County	58,275	+3.6%
Chesterfield County	44,740	+3.4%
Newberry County	39,561	+4.8%
Colleton County	39,382	+2.2%
Jasper County	38,533	+32.2%
Chester County	33,001	+2.2%
Clarendon County	31,043	+0.7%
Edgefield County	29,808	+16.1%
Williamsburg County	29,662	−4.0%

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