| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Rice | city | Illinois | United States | 42.34 | -90.39 | 830 | |
| Rice | city | Illinois | United States | 38.20 | -89.38 | 830 | |
| Richards | city | Illinois | United States | 41.18 | -88.84 | 830 | |
| Richards Park | city | Illinois | United States | 41.34 | -88.42 | 830 | |
| Richardson | city | Illinois | United States | 41.97 | -88.59 | 869 | |
| Richfield | city | Illinois | United States | 39.82 | -91.12 | 830 | |
| Richland | city | Illinois | United States | 39.85 | -89.86 | 830 | |
| Richmond | city | Illinois | United States | 42.48 | -88.31 | 830 | |
| Richmond | city | Illinois | United States | 40.36 | -89.37 | 830 | |
| Richton Park | city | Illinois | United States | 41.48 | -87.70 | 830 | |
| Richview | city | Illinois | United States | 38.38 | -89.18 | 830 | |
| Richwood Manor | city | Illinois | United States | 39.39 | -89.07 | 830 | |
| Richwoods | city | Illinois | United States | 38.96 | -87.55 | 830 | |
| Riddle Hill | city | Illinois | United States | 39.79 | -89.76 | 830 | |
| Riddleville | city | Illinois | United States | 38.85 | -87.65 | 830 | |
| Ridge Farm | city | Illinois | United States | 39.90 | -87.65 | 830 | |
| Ridgecrest | city | Illinois | United States | 41.40 | -88.40 | 830 | |
| Ridgecroft | city | Illinois | United States | 42.13 | -87.81 | 830 | |
| Ridgefield | city | Illinois | United States | 42.27 | -88.36 | 935 | |
| Ridgeland | city | Illinois | United States | 42.13 | -87.88 | 830 | |
| Ridgeland | city | Illinois | United States | 41.89 | -87.78 | 830 | |
| Ridgeland Lakes Estates | city | Illinois | United States | 41.42 | -87.77 | 830 | |
| Ridgely | city | Illinois | United States | 39.83 | -89.63 | 830 | |
| Ridgeville | city | Illinois | United States | 40.71 | -88.07 | 830 | |
| Ridgewood | city | Illinois | United States | 41.54 | -88.04 | 830 | |
| Ridgway | city | Illinois | United States | 37.80 | -88.26 | 380 | |
| Ridott | city | Illinois | United States | 42.30 | -89.48 | 830 | |
| Ridott Corners | city | Illinois | United States | 42.28 | -89.48 | 830 | |
| Riehl | city | Illinois | United States | 38.94 | -90.27 | 406 | |
| Riffle | city | Illinois | United States | 38.81 | -88.56 | 830 | |
| Riggston | city | Illinois | United States | 39.70 | -90.42 | 830 | |
| Riley | city | Illinois | United States | 42.19 | -88.63 | 830 | |
| Rileyville | city | Illinois | United States | 37.85 | -88.67 | 393 | |
| Rinard | city | Illinois | United States | 38.57 | -88.47 | 830 | |
| Ringwood | city | Illinois | United States | 42.39 | -88.30 | 849 | |
| Rio | city | Illinois | United States | 41.11 | -90.40 | 830 | |
| Ripley | city | Illinois | United States | 40.02 | -90.64 | 830 | |
| Rising | city | Illinois | United States | 40.16 | -88.33 | 830 | |
| Rising Sun | city | Illinois | United States | 38.00 | -88.03 | 341 | |
| Rising Sun | city | Illinois | United States | 37.41 | -88.58 | 830 | |
| Risk | city | Illinois | United States | 40.67 | -88.41 | 830 | |
| Ritchie | city | Illinois | United States | 41.26 | -88.11 | 830 | |
| River | city | Illinois | United States | 41.16 | -87.59 | 830 | |
| River Edge Estates | city | Illinois | United States | 41.63 | -88.19 | 830 | |
| River Forest | city | Illinois | United States | 41.90 | -87.81 | 830 | |
| River Forest | city | Illinois | United States | 42.24 | -89.09 | 830 | |
| River Glen | city | Illinois | United States | 41.55 | -88.19 | 830 | |
| River Grange Lakes | city | Illinois | United States | 41.96 | -88.33 | 830 | |
| River Grove | city | Illinois | United States | 42.19 | -89.04 | 830 | |
| River Grove | city | Illinois | United States | 41.93 | -87.84 | 830 | |
| River Mist On The Fox | city | Illinois | United States | 41.69 | -88.35 | 830 | |
| River Oaks | city | Illinois | United States | 41.72 | -88.14 | 830 | |
| River Oaks West | city | Illinois | United States | 41.50 | -88.22 | 830 | |
| River Road Mobile Home Park | city | Illinois | United States | 42.31 | -89.53 | 830 | |
| River Run | city | Illinois | United States | 41.69 | -88.36 | 830 | |
| River Woods | city | Illinois | United States | 41.72 | -88.13 | 830 | |
| River Woods Estates | city | Illinois | United States | 41.71 | -88.07 | 830 | |
| Riverbend | city | Illinois | United States | 41.70 | -88.16 | 830 | |
| Riverbrook Estates | city | Illinois | United States | 41.55 | -88.21 | 830 | |
| Rivercrest Estates | city | Illinois | United States | 41.71 | -88.16 | 830 | |
| Riverdale | city | Illinois | United States | 41.63 | -87.63 | 830 | |
| Riverdale | city | Illinois | United States | 41.67 | -87.60 | 830 | |
| Riverdale | city | Illinois | United States | 42.42 | -89.03 | 830 | |
| Rivermist | city | Illinois | United States | 41.72 | -88.14 | 830 | |
| Riverside | city | Illinois | United States | 41.84 | -87.82 | 830 | |
| Riverside Mobile Home Estates | city | Illinois | United States | 41.77 | -89.74 | 830 | |
| Riverside at Ole Canton Farm | city | Illinois | United States | 41.56 | -88.19 | 830 | |
| Riverstream | city | Illinois | United States | 42.34 | -88.26 | 830 | |
| Riverton | city | Illinois | United States | 39.84 | -89.54 | 830 | |
| Riverview | city | Illinois | United States | 41.97 | -87.87 | 830 | |
| Riverview | city | Illinois | United States | 42.02 | -87.89 | 830 | |
| Riverview Mobile Home Park | city | Illinois | United States | 42.24 | -89.11 | 830 | |
| Riverwalk | city | Illinois | United States | 41.57 | -88.20 | 830 | |
| Riverwood Estates | city | Illinois | United States | 41.30 | -88.16 | 830 | |
| Riverwoods | city | Illinois | United States | 42.17 | -87.90 | 830 |