• county
  • FIPS 45029
  • Largest town: Walterboro

Colleton County, South Carolina

Colleton County had 39,259 residents in the Census Vintage 2024 estimate, on 1,056.5 square miles of land. It ranks 26th of 46 in South Carolina by population and 5th by land area.

Population
39,259
#26 of 46 in South Carolina · #1,202 in US
Area
1,056.5 sq mi
#5 of 46 in South Carolina · #616 in US
Density
37 / sq mi
#40 of 46 in South Carolina · #1,739 in US
Median household income
$48,504
#33 of 46 in South Carolina · #2,806 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Colleton County within South Carolina. Pin: Columbia.

Colleton County population, land area and income

Colleton County had 39,259 residents in the Census Vintage 2024 estimate, on 1,056.5 square miles of land. It ranks 26th of 46 in South Carolina by population and 5th by land area. That works out to 37.2 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in South Carolina has 60,098 residents; Colleton County is somewhat smaller.

Its SAIPE 2023 median household income of $48,504 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

39,259

3144th1st

1202nd of 3,144 (US)

Land area

1,056 sq mi

3144th1st

616th of 3,144 (US)

Density

37.2 / sq mi

3144th1st

1739th of 3,144 (US)

Median household income

$48,504

3143rd1st

2806th of 3,143 (US)

Rank within South Carolina (46)

Population

39,259

46th1st

26th of 46 (SC)

Land area

1,056 sq mi

46th1st

5th of 46 (SC)

Density

37.2 / sq mi

46th1st

40th of 46 (SC)

Median household income

$48,504

46th1st

33rd of 46 (SC)

How Colleton County's population changed since 2020

Colleton County gained 721 residents between the July 2020 and July 2024 estimates, a rise of 1.9%. That ranks 26th of 46 in South Carolina for growth. The median South Carolina county changed by +2.9%, and the state as a whole by +6.8%.

Since the April 2020 estimates base, Colleton County recorded 1,814 births and 2,809 deaths, a natural change of -995. Net international migration added +452 and net domestic migration, people moving to or from other US counties, came to +1,155. The largest single component was domestic migration, which added 1,155 people.

38.5k202038.5k202138.6k202239.0k202339.3k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,814
Deaths
2,809
Net international migration
+452
Net domestic migration
+1,155
Change, July 2023 to July 2024
+219

Where Colleton County is

The Census internal point of Colleton County is at 32.849400, -80.656400. It sits in UTM zone 17N. The map shades South Carolina's 46 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Colleton County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Colleton County

2 incorporated places of 1,000+ people have residents in Colleton County, 6,548 people together, or 17% of the county. Each figure counts only the part of the town inside Colleton County; towns marked "part" extend into another county. The largest is Walterboro with 5,488.

  1. 01Walterboro5,488
  2. 02Edisto Beach1,060
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Colleton County

The Census 2024 county adjacency file lists 7 neighbors for Colleton County. The most populous is Charleston County, SC, with 431,001 residents. Distances run between Census internal points in a straight line.

Distance to Columbia and the nearest big city

Columbia is 82.5 miles NNW of Colleton County's internal point in a straight line. The nearest place of 100,000 or more is North Charleston, SC (population 126,005), 34.6 miles away. The nearest place of 10,000 or more is Beaufort, SC (population 14,334), 27.3 miles away.

Colleton County FIPS code

The FIPS code of Colleton County is 45029: state code 45 for South Carolina plus county code 029. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $48,504.

Questions people ask

What is the population of Colleton County, South Carolina?

The Census Vintage 2024 estimate for July 1, 2024 is 39,259. That is up 721 people (1.9%) from the July 2020 estimate of 38,538.

What is the FIPS code of Colleton County?

45029. The first two digits (45) are South Carolina; the last three (029) identify the county.

What is the largest town in Colleton County?

Walterboro, with 5,488 residents inside Colleton County in 2024.

Which counties border Colleton County?

7 county-equivalents border it in the Census 2024 adjacency file: Charleston County, SC; Beaufort County, SC; Dorchester County, SC; Orangeburg County, SC; Hampton County, SC; Bamberg County, SC; Allendale County, SC.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.