| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lebanon | 1 | 15,785 | 15,008 | 0.78% | 1,078 | 15 | City |
| Conway | 2 | 738 | 735 | 0% | 405 | 2 | City |
| Stoutland | 3 | 208 | 204 | 0.48% | 344 | 1 | City |
| Phillipsburg | 4 | 166 | 165 | 0% | 208 | 1 | Village |
Lebanon is the largest city in Laclede County, with a population of 15,785.
Phillipsburg is the smallest city in Laclede County, with a population of 166.
There are 4 cities in Laclede County, Missouri.