| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lancaster | 1 | 693 | 670 | 0.29% | 466 | 1 | City |
| Queen City | 2 | 574 | 553 | 0.35% | 558 | 1 | City |
| Downing | 3 | 309 | 298 | 0.32% | 469 | 1 | City |
| Glenwood | 4 | 185 | 179 | 0% | 251 | 1 | Village |
Lancaster is the largest city in Schuyler County, with a population of 693.
Glenwood is the smallest city in Schuyler County, with a population of 185.
There are 4 cities in Schuyler County, Missouri.