| Locality | Latitude | Longitude | Elevation | Postal Code |
|---|---|---|---|---|
| Thomson (Thomson) | 41.982641 | -90.060929 | m | 61285 |
| Thomson (Thompson) | 41.982641 | -90.060929 | m | 61285 |
| Shannon (Shannon) | 42.162406 | -89.754166 | m | 61078 |
| Savanna (Savanna Army Depot) | 42.143723 | -90.227178 | m | 61074 |
| Savanna (Savanna) | 42.143723 | -90.227178 | m | 61074 |
| Mount Carroll (Mount Carroll) | 42.116581 | -89.978664 | m | 61053 |
| Milledgeville (Milledgeville) | 41.991701 | -89.754466 | m | 61051 |
| Lanark (Lanark) | 42.107932 | -89.809377 | m | 61046 |
| Lanark (Lake Carroll) | 42.107932 | -89.809377 | m | 61046 |
| Chadwick (Chadwick) | 41.980309 | -89.88071 | m | 61014 |
Carroll is an Administrative divisions in Illinois United States.
Illinois