5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Jasper | 1 | 514 | 531 | -0.58% | 539 | 0.95 | City |
| Western Grove | 2 | 345 | 355 | -0.58% | 320 | 1.08 | Town |
| Wayton | 3 | 227 | 159 | 7.08% | 56 | 4.07 | CDP |
| Deer | 4 | 99 | 278 | 7.61% | 35 | 2.79 | CDP |
| Mount Judea | 5 | 81 | 31 | 6.58% | 25 | 3.29 | CDP |
Jasper is the largest city in Newton County, with a population of 514.
Mount Judea is the smallest city in Newton County.
There are 5 cities in Newton County, Arkansas.