8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Plantersville | 1 | 527 | 464 | 2.53% | 267 | 1.98 | City |
| Bedias | 2 | 414 | 363 | 2.48% | 374 | 1.11 | City |
| Iola | 3 | 355 | 315 | 2.31% | 344 | 1.03 | City |
| Anderson | 4 | 221 | 191 | 2.79% | 432 | 0.51 | City |
| Pinebrook | 5 | 215 | 208 | 6.97% | 78 | 2.75 | CDP |
| Richards | 6 | 151 | 175 | 7.09% | 83 | 1.82 | CDP |
| Todd Mission | 7 | 135 | 122 | 2.27% | 68 | 1.98 | City |
| Shiro | 8 | 89 | 180 | 7.23% | 35 | 2.54 | CDP |
Plantersville is the largest city in Grimes County, with a population of 527.
Shiro is the smallest city in Grimes County.
There are 8 cities in Grimes County, Texas.