5 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Plantersville | 1 | 545 | 467 | 2.44% | 276 | 2 | City |
| Bedias | 2 | 423 | 360 | 2.67% | 382 | 1 | City |
| Iola | 3 | 363 | 315 | 2.25% | 352 | 1 | City |
| Anderson | 4 | 222 | 191 | 2.3% | 434 | 1 | City |
| Todd Mission | 5 | 136 | 121 | 2.26% | 69 | 2 | City |
Plantersville is the largest city in Grimes County, with a population of 545.
Todd Mission is the smallest city in Grimes County, with a population of 136.
There are 5 cities in Grimes County, Texas.