| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rensselaer | 1 | 5,666 | 5,718 | -0.26% | 793 | 7 | City |
| DeMotte | 2 | 4,418 | 4,183 | 0.78% | 1,232 | 4 | Town |
| Remington | 3 | 1,399 | 1,352 | 0.5% | 367 | 4 | Town |
| Wheatfield | 4 | 938 | 902 | 0.75% | 1,587 | 1 | Town |
Rensselaer is the largest city in Jasper County, with a population of 5,666.
Wheatfield is the smallest city in Jasper County, with a population of 938.
There are 4 cities in Jasper County, Indiana.