Ranking of South Carolina Counties By Population with Irish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 437.45K people in South Carolina with Irish ancestry. Among all South Carolina counties, Greenville County had the highest population with Irish ancestry (50.25K), followed by Horry County (41.05K), and Charleston County (39.26K).
The chart and table below shows the top 10 counties with high number of people with Irish ancestry.
You can see similar information for other states and for other ancestry groups in South Carolina.
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Related Topics: South Carolina ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of South Carolina Counties By Population with Irish Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Greenville County | 50250 |
| 2 | Horry County | 41054 |
| 3 | Charleston County | 39258 |
| 4 | York County | 29727 |
| 5 | Spartanburg County | 28563 |
| 6 | Lexington County | 28525 |
| 7 | Richland County | 22285 |
| 8 | Beaufort County | 22283 |
| 9 | Berkeley County | 20080 |
| 10 | Anderson County | 19918 |
| 11 | Dorchester County | 15990 |
| 12 | Pickens County | 15193 |
| 13 | Aiken County | 14910 |
| 14 | Oconee County | 10477 |
| 15 | Lancaster County | 9707 |
| 16 | Florence County | 7451 |
| 17 | Georgetown County | 6780 |
| 18 | Sumter County | 5554 |
| 19 | Kershaw County | 5206 |
| 20 | Laurens County | 5006 |
| 21 | Greenwood County | 4263 |
| 22 | Darlington County | 4222 |
| 23 | Cherokee County | 3498 |
| 24 | Chesterfield County | 2592 |
| 25 | Jasper County | 2220 |
| 26 | Union County | 2145 |
| 27 | Orangeburg County | 2034 |
| 28 | Newberry County | 2032 |
| 29 | Colleton County | 1992 |
| 30 | Clarendon County | 1842 |
| 31 | Abbeville County | 1724 |
| 32 | Chester County | 1659 |
| 33 | Edgefield County | 1402 |
| 34 | Saluda County | 1132 |
| 35 | Marlboro County | 866 |
| 36 | McCormick County | 798 |
| 37 | Dillon County | 742 |
| 38 | Williamsburg County | 720 |
| 39 | Fairfield County | 705 |
| 40 | Calhoun County | 588 |
| 41 | Marion County | 513 |
| 42 | Lee County | 453 |
| 43 | Barnwell County | 417 |
| 44 | Hampton County | 404 |
| 45 | Bamberg County | 138 |
| 46 | Allendale County | 129 |