9 cities
| City | Rank | County | 2025 Pop. ↓ |
|---|---|---|---|
| South Kingstown town | 1 | Washington County | 31,935 |
| North Kingstown town | 2 | Washington County | 27,735 |
| Westerly town | 3 | Washington County | 23,085 |
| Narragansett town | 4 | Washington County | 14,239 |
| Hopkinton town | 5 | Washington County | 8,378 |
| Richmond town | 6 | Washington County | 8,113 |
| Charlestown town | 7 | Washington County | 8,030 |
| Exeter town | 8 | Washington County | 6,523 |
| New Shoreham town | 9 | Washington County | 1,396 |
Washington County is the county generally considered as South County Rhode Island.