Current communities
| Image | Name | Type | Township | Area in miles (km2) | Date founded |
Population |
|---|---|---|---|---|---|---|
 |
Adeline | Village | Maryland Township | 0.7 mi2 (1.81 km2) | 139 | |
 |
Baileyville | Unincorporated | Forreston Township | |||
| Brooks Isle | Unincorporated | Oregon-Nashua Township | ||||
 |
Buffalo Grove | Unincorporated | Oregon-Nashua Township | NA | 1830 | NA |
 |
Byron | City | Byron Township | 6.4 mi2 (16.58 km2) | 2,917 | |
 |
Chana | Unincorporated | Pine Rock Township | 1871 | ||
| Creston | Village | Dement Township | 1.1 mi2 (2.85 km2) | 543 | ||
 |
Davis Junction | Village | Scott Township | 9.8 mi2 (25.38 km2) | 491 | |
| Daysville | Unincorporated | Oregon-Nashua Township | ||||
| Egan | Unincorporated | Leaf River Township | ||||
 |
Flagg Center | Unincorporated | Flagg Township | |||
 |
Forreston | Village | Forreston Township | 2.1 mi2 (5.44 km2) | 1854[1] | 1,469 |
 |
Grand Detour | Unincorporated | Grand Detour Township | |||
 |
Haldane | Unincorporated | Lincoln Township | |||
| Harper | Unincorporated | Forreston Township | ||||
| Hazelhurst | Unincorporated | Eagle Point Township | ||||
 |
Hillcrest | Village | Flagg Township | 0.6 mi2 (1.55 km2) | 1,158 | |
| Holcomb | Unincorporated | White Rock Township | ||||
 |
Kings | Unincorporated | White Rock Township | |||
 |
Leaf River | Village | Leaf River Township | 2.2 mi2 (5.7 km2) | 555 | |
 |
Lindenwood | Unincorporated | Lynnville Township | |||
 |
Monroe Center | Village | Monroe Township | 504 | ||
 |
Mount Morris | Village | Mt. Morris Township | 3.0 mi2 (7.77 km2) | 3,013 | |
 |
Oregon | City | Oregon-Nashua Township | 2.1 mi2 (5.44 km2) | 4,060 | |
 |
Paynes Point | Unincorporated | Pine Rock Township | |||
 |
Polo | City | Buffalo Township | 3.4 mi2 (8.81 km2) | 2,477 | |
 |
Rochelle | City | Flagg Township and Dement Township | 19.4 mi2 (50.25 km2) | 9,424 | |
 |
Stillman Valley | Village | Marion Township | 1.4 mi2 (3.63 km2) | 1875 | 1,048 |
| Stratford | Unincorporated | Pine Creek Township | ||||
| Woosung | Unincorporated | Woosung Township | June, 1855[2] |