Data / Rankings / Median age on 1 July (US county estimates) / Counties in South Carolina

Counties in South Carolina by median age on 1 July (US county estimates)

McCormick County had the highest median age on 1 July (US county estimates) of 46 counties in 2020, at 59 years. Richland County had the lowest, at 35.5 years. The median was 42.9 years. Source: the U.S. Census Bureau.

Highest59McCormick County
Lowest35.5Richland County
Median42.946 counties

All counties, 2020

McCormick County: 59 yearsMcCormick County59Georgetown County: 52.1 yearsGeorgetown County52.1Fairfield County: 50 yearsFairfield County50Calhoun County: 49 yearsCalhoun County49Horry County: 49 yearsHorry County49Beaufort County: 47.4 yearsBeaufort County47.4Clarendon County: 47.1 yearsClarendon County47.1Oconee County: 47.1 yearsOconee County47.1Allendale County: 46.9 yearsAllendale County46.9Williamsburg County: 45.6 yearsWilliamsburg County45.6Abbeville County: 45.3 yearsAbbeville County45.3Lee County: 45.3 yearsLee County45.3Union County: 45 yearsUnion County45Bamberg County: 44.8 yearsBamberg County44.8Colleton County: 44.7 yearsColleton County44.7Edgefield County: 44.5 yearsEdgefield County44.5Saluda County: 44.4 yearsSaluda County44.4Marion County: 44.2 yearsMarion County44.2Chester County: 43.1 yearsChester County43.1Hampton County: 43.1 yearsHampton County43.1Lancaster County: 43.1 yearsLancaster County43.1Jasper County: 43 yearsJasper County43Newberry County: 43 yearsNewberry County43Chesterfield County: 42.7 yearsChesterfield County42.7Darlington County: 42.7 yearsDarlington County42.7Marlboro County: 42.3 yearsMarlboro County42.3Aiken County: 42.2 yearsAiken County42.2Barnwell County: 42.2 yearsBarnwell County42.2Kershaw County: 42.1 yearsKershaw County42.1Laurens County: 42.1 yearsLaurens County42.1Orangeburg County: 42 yearsOrangeburg County42Anderson County: 41.1 yearsAnderson County41.1Cherokee County: 40.8 yearsCherokee County40.8Dillon County: 40.5 yearsDillon County40.5Florence County: 40.4 yearsFlorence County40.4Greenwood County: 40.1 yearsGreenwood County40.1Lexington County: 39.8 yearsLexington County39.8York County: 39.1 yearsYork County39.1Spartanburg County: 38.7 yearsSpartanburg County38.7Sumter County: 38.7 yearsSumter County38.7Greenville County: 38.6 yearsGreenville County38.6Charleston County: 38.4 yearsCharleston County38.4Dorchester County: 38 yearsDorchester County38Berkeley County: 36.6 yearsBerkeley County36.6Pickens County: 36 yearsPickens County36Richland County: 35.5 yearsRichland County35.5
years. Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.

Full ranking

RankCounties2020
years		Change on 2019
1McCormick County59+1.1
2Georgetown County52.1+0.8
3Fairfield County50+0.5
4Calhoun County49+0.3
4Horry County49+0.8
6Beaufort County47.4+0.7
7Clarendon County47.1+0.7
7Oconee County47.1+0.3
9Allendale County46.9+0.6
10Williamsburg County45.6+0.4
11Abbeville County45.3+0.7
11Lee County45.3+0.2
13Union County45-0.1
14Bamberg County44.8+0.9
15Colleton County44.7+0.1
16Edgefield County44.5+0.6
17Saluda County44.4+0.3
18Marion County44.2+0.3
19Chester County43.10
19Hampton County43.1+1.1
19Lancaster County43.1+0.4
22Jasper County43+0.7
22Newberry County430
24Chesterfield County42.7-0.2
24Darlington County42.7-0.1
26Marlboro County42.3+0.1
27Aiken County42.20
27Barnwell County42.2-0.1
29Kershaw County42.1-0.2
29Laurens County42.10
31Orangeburg County420
32Anderson County41.10
33Cherokee County40.8+0.2
34Dillon County40.5-0.5
35Florence County40.4+0.2
36Greenwood County40.1-0.1
37Lexington County39.8+0.2
38York County39.1+0.3
39Spartanburg County38.70
39Sumter County38.7+0.1
41Greenville County38.6+0.1
42Charleston County38.4+0.3
43Dorchester County38+0.1
44Berkeley County36.6+0.1
45Pickens County360
46Richland County35.5+0.1

Other periods

About this ranking

Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.

Counties only: the county file has no state or national medians, and medians cannot be added up. A single-year estimate, unlike median_age, which for US places is a five-year American Community Survey estimate.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (Counties in South Carolina by median age on 1 July (US county estimates), 2020) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in South Carolina by median age on 1 July (US county estimates), 2020. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/south-carolina-counties?period=2020. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Counties in South Carolina by median age on 1 July (US county estimates), 2020. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/south-carolina-counties?period=2020.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in South Carolina by median age on 1 July (US county estimates), 2020 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/median-age-july-1-us-counties/south-carolina-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_carolina_2020,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in South Carolina by median age on 1 July (US county estimates), 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/south-carolina-counties?period=2020. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in South Carolina by median age on 1 July (US county estimates), 2020
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/median-age-july-1-us-counties/south-carolina-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/south-carolina-counties?period=2020.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest median age on 1 July (US county estimates)?

McCormick County, with 59 years in 2020, according to the U.S. Census Bureau.

Which county has the lowest median age on 1 July (US county estimates)?

Richland County, with 35.5 years in 2020.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.

Median age on 1 July (US county estimates): other rankings

Counties in South Carolina: more rankings