8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| La Grange | 1 | 4,641 | 4,390 | 1.09% | 1,122 | 4.14 | City |
| Schulenburg | 2 | 2,878 | 2,640 | 1.7% | 1,101 | 2.61 | City |
| Flatonia | 3 | 1,401 | 1,326 | 1.08% | 847 | 1.65 | Town |
| Plum | 4 | 450 | 456 | 7.14% | 128 | 3.51 | CDP |
| Ellinger | 5 | 302 | 287 | 1% | 665 | 0.45 | City |
| Fayetteville | 6 | 253 | 245 | 0.8% | 504 | 0.50 | City |
| Carmine | 7 | 251 | 243 | 0.8% | 153 | 1.64 | City |
| Round Top | 8 | 97 | 87 | 2.11% | 102 | 0.95 | Town |
La Grange is the largest city in Fayette County, with a population of 4,641.
Round Top is the smallest city in Fayette County.
There are 8 cities in Fayette County, Texas.