7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mansfield | 1 | 4,502 | 4,717 | -0.95% | 1,233 | 4 | City |
| Stonewall | 2 | 2,603 | 2,210 | 3.09% | 303 | 9 | Town |
| Logansport | 3 | 1,332 | 1,337 | -0.08% | 392 | 3 | Town |
| South Mansfield | 4 | 340 | 337 | 0% | 501 | 1 | Village |
| Grand Cane | 5 | 215 | 219 | -0.46% | 190 | 1 | Village |
| Stanley | 6 | 130 | 130 | 0% | 60 | 2 | Village |
| Longstreet | 7 | 120 | 118 | 0% | 59 | 2 | Village |
Mansfield is the largest city in De Soto Parish, with a population of 4,502.
Longstreet is the smallest city in De Soto Parish, with a population of 120.
There are 7 cities in De Soto Parish, Louisiana.