5 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tecumseh | 1 | 1,684 | 1,723 | -0.36% | 1,114 | 2 | City |
| Sterling | 2 | 484 | 483 | 0% | 1,189 | 0 | Village |
| Cook | 3 | 310 | 321 | -0.64% | 1,792 | 0 | Village |
| Elk Creek | 4 | 65 | 68 | 0% | 500 | 0 | Village |
| Crab Orchard | 5 | 43 | 45 | 0% | 270 | 0 | Village |
Tecumseh is the largest city in Johnson County, with a population of 1,684.
Crab Orchard is the smallest city in Johnson County, with a population of 43.
There are 5 cities in Johnson County, Nebraska.