6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Littlefield | 1 | 5,692 | 5,930 | -0.84% | 906 | 6 | City |
| Olton | 2 | 1,921 | 1,979 | -0.62% | 1,414 | 1 | City |
| Sudan | 3 | 935 | 945 | -0.21% | 914 | 1 | City |
| Earth | 4 | 898 | 902 | -0.11% | 748 | 1 | City |
| Amherst | 5 | 634 | 667 | -1.09% | 693 | 1 | City |
| Springlake | 6 | 140 | 143 | -0.71% | 136 | 1 | Town |
Littlefield is the largest city in Lamb County, with a population of 5,692.
Springlake is the smallest city in Lamb County, with a population of 140.
There are 6 cities in Lamb County, Texas.