36 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Spartanburg | 1 | 39,856 | 38,604 | 0.63% | 1,968 | 20 | City |
| Boiling Springs | 2 | 11,934 | 9,953 | 2.12% | 1,746 | 7 | CDP |
| Valley Falls | 3 | 7,305 | 7,269 | 0.93% | 1,408 | 5 | CDP |
| Lyman | 4 | 7,122 | 6,205 | 2.64% | 1,075 | 7 | Town |
| Woodruff | 5 | 5,280 | 4,237 | 4.1% | 1,041 | 5 | City |
| Duncan | 6 | 4,725 | 4,070 | 2.85% | 754 | 6 | Town |
| Whitney | 7 | 4,668 | 3,999 | 7.16% | 1,530 | 3 | CDP |
| Saxon | 8 | 4,358 | 3,727 | 1.44% | 1,830 | 2 | CDP |
| Roebuck | 9 | 4,246 | 2,768 | 3.31% | 989 | 4 | CDP |
| Hilltop | 10 | 4,066 | 3,483 | 7.14% | 2,228 | 2 | CDP |
| Southern Shops | 11 | 3,878 | 3,965 | 0.18% | 1,088 | 4 | CDP |
| Wellford | 12 | 3,832 | 3,337 | 2.65% | 837 | 5 | City |
| Inman | 13 | 3,442 | 3,000 | 2.62% | 1,962 | 2 | City |
| Arkwright | 14 | 3,236 | 2,493 | 7.15% | 1,252 | 3 | CDP |
| Arcadia | 15 | 2,899 | 2,991 | 0.62% | 1,479 | 2 | CDP |
| Landrum | 16 | 2,867 | 2,491 | 2.69% | 1,084 | 3 | City |
| Ben Avon | 17 | 2,701 | 2,189 | 7.14% | 1,616 | 2 | CDP |
| Pacolet | 18 | 2,635 | 2,288 | 2.69% | 456 | 6 | Town |
| Cowpens | 19 | 2,279 | 2,032 | 2.2% | 993 | 2 | Town |
| Camp Croft | 20 | 2,116 | 1,991 | 7.14% | 799 | 3 | CDP |
| Mayo | 21 | 2,008 | 1,770 | 1.41% | 660 | 3 | CDP |
| Reidville | 22 | 1,892 | 1,640 | 2.71% | 1,074 | 2 | Town |
| Fairforest | 23 | 1,609 | 1,484 | -0.37% | 769 | 2 | CDP |
| Drayton | 24 | 1,264 | 1,097 | 7.12% | 902 | 1 | CDP |
| Clifton | 25 | 1,067 | 691 | 3.39% | 994 | 1 | CDP |
| Chesnee | 26 | 960 | 833 | 2.67% | 896 | 1 | City |
| Inman Mills | 27 | 932 | 801 | -0.85% | 864 | 1 | CDP |
| Campobello | 28 | 786 | 685 | 2.61% | 283 | 3 | Town |
| Startex | 29 | 476 | 556 | -5.18% | 430 | 1 | CDP |
| Enoree | 30 | 385 | 560 | -4.7% | 249 | 2 | CDP |
| Pauline | 31 | 286 | 204 | 7.12% | 200 | 1 | CDP |
| Glendale | 32 | 241 | 312 | -1.63% | 1,137 | 0 | CDP |
| Glenn Springs | 33 | 234 | 231 | 7.34% | 106 | 2 | CDP |
| Converse | 34 | 149 | 545 | -17.22% | 216 | 1 | CDP |
| Gramling | 35 | 99 | 97 | 7.61% | 99 | 1 | CDP |
| Fingerville | 36 | 90 | 31 | -3.23% | 369 | 0 | CDP |
Spartanburg is the largest city in Spartanburg County, with a population of 39,856.
Fingerville is the smallest city in Spartanburg County, with a population of 90.
There are 36 cities in Spartanburg County, South Carolina.