8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mont Belvieu | 1 | 11,411 | 7,865 | 5.46% | 641 | 18 | City |
| Beach City | 2 | 3,565 | 3,237 | 1.57% | 796 | 4 | City |
| Anahuac | 3 | 2,050 | 1,969 | 0.69% | 988 | 2 | City |
| Old River-Winfree | 4 | 1,421 | 1,307 | 1.36% | 907 | 2 | City |
| Ames | 5 | 1,338 | 954 | 5.02% | 405 | 3 | City |
| Kenefick | 6 | 899 | 623 | 5.39% | 580 | 2 | Town |
| Cove | 7 | 747 | 552 | 4.62% | 614 | 1 | City |
| Dayton Lakes | 8 | 63 | 45 | 5% | 73 | 1 | City |
Mont Belvieu is the largest city in Chambers County, with a population of 11,411.
Dayton Lakes is the smallest city in Chambers County, with a population of 63.
There are 8 cities in Chambers County, Texas.