RANKING · 1990 CENSUS · 46 SHOWN OF 46

Most racially diverse, South Carolina counties · 1990

South Carolina counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2023 ACS). This list covers the 46 counties in South Carolina that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Youngest by median age Most foreign-born residents Highest uninsured rate Most women Most men

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Richland County, SCSC434,95666−3%

02Marlboro County, SCSC25,48866+3%

03Dillon County, SCSC27,45865−1%

04Sumter County, SCSC105,06764−2%

05Colleton County, SCSC39,38263−0%

06Edgefield County, SCSC29,80863−1%

07Marion County, SCSC28,24263−1%

08Calhoun County, SCSC14,18863−2%

09Barnwell County, SCSC20,65363−2%

10Clarendon County, SCSC31,04363−3%

11Georgetown County, SCSC65,91262+1%

12Hampton County, SCSC18,17462−3%

13Jasper County, SCSC38,53362−9%

14Orangeburg County, SCSC83,17762+2%

15Chester County, SCSC33,00162+1%

16Darlington County, SCSC62,88861−2%

17McCormick County, SCSC10,21561−4%

18Fairfield County, SCSC20,34061−1%

19Charleston County, SCSC436,20061−2%

20Florence County, SCSC138,50460−3%

21Lee County, SCSC15,73060+2%

22Bamberg County, SCSC12,79660+1%

23Beaufort County, SCSC204,43358−1%

24Williamsburg County, SCSC29,66258+2%

25Newberry County, SCSC39,56158−8%

26Allendale County, SCSC7,35557+9%

27Chesterfield County, SCSC44,74057−5%

28Saluda County, SCSC19,68056−12%

29Abbeville County, SCSC24,83655+1%

30Greenwood County, SCSC70,37954−9%

31Berkeley County, SCSC274,66654−6%

32Union County, SCSC26,79953−3%

33Kershaw County, SCSC73,16652−0%

34Laurens County, SCSC71,84852−1%

35Dorchester County, SCSC178,39750−6%

36Lancaster County, SCSC114,29649−8%

37Aiken County, SCSC181,51548−8%

38Spartanburg County, SCSC380,85744−11%

39York County, SCSC306,88744−3%

40Cherokee County, SCSC58,27543−7%

41Greenville County, SCSC583,12540−15%

42Horry County, SCSC427,55140−0%

43Anderson County, SCSC219,93037−4%

44Lexington County, SCSC317,58828−18%

45Oconee County, SCSC83,77523−11%

46Pickens County, SCSC139,19821−8%

SHOWING 1–46 OF 46

Download CSV (full list, 46 rows)How this score is calculated

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES