| 61201 Rock Island | 309 | Rock Island County | Illinois (IL) |
| 61204 Rock Island | 309 | Rock Island County | Illinois (IL) |
| 61232 Andalusia | 309 | Rock Island County | Illinois (IL) |
| 61236 Barstow | 309 | Rock Island County | Illinois (IL) |
| 61237 Buffalo Prairie | 309 | Rock Island County | Illinois (IL) |
| 61237 Buffalo Pr | 309 | Rock Island County | Illinois (IL) |
| 61239 Carbon Cliff | 309 | Rock Island County | Illinois (IL) |
| 61240 Coal Valley | 309 | Rock Island County | Illinois (IL) |
| 61242 Cordova | 309 | Rock Island County | Illinois (IL) |
| 61244 Whites Addition | 309 | Rock Island County | Illinois (IL) |
| 61244 Campbells Island | 309 | Rock Island County | Illinois (IL) |
| 61244 East Moline | 309 | Rock Island County | Illinois (IL) |
| 61244 Meersman | 309 | Rock Island County | Illinois (IL) |
| 61244 Merry Oaks | 309 | Rock Island County | Illinois (IL) |
| 61244 South Moline | 309 | Rock Island County | Illinois (IL) |
| 61244 Watertown | 309 | Rock Island County | Illinois (IL) |
| 61244 Babcock | 309 | Rock Island County | Illinois (IL) |
| 61256 Hampton | 309 | Rock Island County | Illinois (IL) |
| 61257 Hillsdale | 309 | Rock Island County | Illinois (IL) |
| 61259 Illinois City | 309 | Rock Island County | Illinois (IL) |
| 61264 Milan | 309 | Rock Island County | Illinois (IL) |
| 61265 Moline | 309 | Rock Island County | Illinois (IL) |
| 61265 Quad City Airport | 309 | Rock Island County | Illinois (IL) |
| 61266 Moline | 309 | Rock Island County | Illinois (IL) |
| 61275 Byron Hills | 309 | Rock Island County | Illinois (IL) |
| 61275 Coe | 309 | Rock Island County | Illinois (IL) |
| 61275 Mobet Meadows | 309 | Rock Island County | Illinois (IL) |
| 61275 Port Byron | 309 | Rock Island County | Illinois (IL) |
| 61278 Rapids City | 309 | Rock Island County | Illinois (IL) |
| 61279 Perryton | 309 | Rock Island County | Illinois (IL) |
| 61279 Marston | 309 | Rock Island County | Illinois (IL) |
| 61279 Reynolds | 309 | Rock Island County | Illinois (IL) |
| 61282 Silvis | 309 | Rock Island County | Illinois (IL) |
| 61284 Taylor Ridge | 309 | Rock Island County | Illinois (IL) |
| 61299 Rock Island | 309 | Rock Island County | Illinois (IL) |
| 61299 Rock Island Arsonal | 309 | Rock Island County | Illinois (IL) |