16 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Red Bluff | 1 | 14,172 | 14,741 | -0.8% | 1,874 | 8 | City |
| Corning | 2 | 8,109 | 8,219 | -0.27% | 2,286 | 4 | City |
| Los Molinos | 3 | 1,552 | 1,924 | -2.02% | 714 | 2 | CDP |
| Gerber | 4 | 1,090 | 1,084 | 0.18% | 1,176 | 1 | CDP |
| Rancho Tehama Reserve | 5 | 620 | 1,750 | -8.55% | 53 | 12 | CDP |
| Tehama | 6 | 437 | 430 | 0.23% | 550 | 1 | City |
| Bend | 7 | 363 | 425 | -4.47% | 125 | 3 | CDP |
| Manton | 8 | 294 | 331 | -1.34% | 17 | 18 | CDP |
| Vina | 9 | 278 | 212 | 0.72% | 206 | 1 | CDP |
| Proberta | 10 | 177 | 36 | -3.28% | 124 | 1 | CDP |
| Las Flores | 11 | 113 | 217 | -4.24% | 316 | 0 | CDP |
| Richfield | 12 | 101 | 341 | -12.17% | 185 | 1 | CDP |
| Flournoy | 13 | 94 | 161 | 0% | 16 | 6 | CDP |
| Mineral | 14 | 66 | 250 | -4.35% | 1 | 44 | CDP |
| Paskenta | 15 | 51 | 59 | -7.27% | 47 | 1 | CDP |
| Paynes Creek | 16 | 46 | 47 | 6.98% | 13 | 3 | CDP |
Red Bluff is the largest city in Tehama County, with a population of 14,172.
Paynes Creek is the smallest city in Tehama County, with a population of 46.
There are 16 cities in Tehama County, California.