| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Petersburg | 1 | 2,283 | 2,298 | -0.26% | 1,443 | 2 | City |
| Winslow | 2 | 739 | 761 | -0.4% | 1,076 | 1 | Town |
| Spurgeon | 3 | 163 | 168 | -0.61% | 931 | 0 | Town |
Petersburg is the largest city in Pike County, with a population of 2,283.
Spurgeon is the smallest city in Pike County, with a population of 163.
There are 3 cities in Pike County, Indiana.