Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Immaculate Conception Roman Catholic Church | Church | 182 | Cook | 41 48 49 N | 087 41 39 W |
| Immaculate Conception Roman Catholic Church | Church | 181 | Cook | 41 50 15 N | 087 39 12 W |
| Immaculate Conception Roman Catholic Church | Church | 180 | Cook | 41 44 09 N | 087 33 07 W |
| Immaculate Conception Roman Catholic Church | Church | 199 | Cook | 41 59 09 N | 087 48 28 W |
| Immaculate Conception Roman Catholic Church | Church | 203 | Lake | 42 21 51 N | 087 50 09 W |
| Immaculate Conception Roman Catholic Church | Church | 144 | Lawrence | 38 42 33 N | 087 45 24 W |
| Immaculate Conception Roman Catholic Church | Church | 126 | St. Clair | 38 37 39 N | 090 08 13 W |
| Immaculate Conception Roman Catholic Church | Church | 232 | Warren | 40 54 44 N | 090 39 02 W |
| Immaculate Conception School | School | 185 | Bureau | 41 19 35 N | 089 11 54 W |
| Immaculate Conception School | School | 181 | Cook | 41 54 32 N | 087 38 11 W |
| Immaculate Conception School | School | 181 | Cook | 41 50 15 N | 087 39 10 W |
| Immaculate Conception School | School | 200 | Cook | 41 59 11 N | 087 48 33 W |
| Immaculate Conception School | School | 180 | Cook | 41 44 10 N | 087 33 08 W |
| Immaculate Conception School | School | 182 | Cook | 41 48 47 N | 087 41 35 W |
| Immaculate Conception School | School | 213 | DuPage | 41 53 43 N | 087 56 31 W |
| Immaculate Conception School | School | 160 | Grundy | 41 21 38 N | 088 25 06 W |
| Immaculate Conception School | School | 201 | Lake | 42 21 51 N | 087 50 11 W |
| Immaculate Conception School | School | 206 | Lake | 42 10 52 N | 087 48 08 W |
| Immaculate Conception School | School | 151 | Madison | 38 53 27 N | 090 10 40 W |
| Immaculate Conception School | School | 126 | St. Clair | 38 37 40 N | 090 08 12 W |
| Immaculate Conception School | School | 232 | Warren | 40 54 46 N | 090 39 00 W |
| Immaculate Heart of Mary Church | Church | 182 | Cook | 41 48 42 N | 087 39 53 W |
| Immaculate Heart of Mary Roman Catholic Church | Church | 181 | Cook | 41 57 07 N | 087 42 38 W |
| Immaculate Heart of Mary School | School | 181 | Cook | 41 57 02 N | 087 42 38 W |
| Immaculate Heart of Mary School | School | 197 | Cook | 41 50 59 N | 087 53 38 W |
| Immanauel Lutheran Church | Church | 212 | McDonough | 40 26 55 N | 090 39 39 W |
| Immanuel Baptist Church | Church | 205 | Adams | 39 56 29 N | 091 22 39 W |
| Immanuel Baptist Church | Church | 96 | Alexander | 37 00 49 N | 089 11 23 W |
| Immanuel Baptist Church | Church | 181 | Cook | 41 55 33 N | 087 41 23 W |
| Immanuel Baptist Church | Church | 184 | Cook | 41 50 57 N | 087 44 56 W |
| Immanuel Baptist Church | Church | 137 | Franklin | 38 00 12 N | 088 55 11 W |
| Immanuel Baptist Church | Church | 198 | Lake | 42 22 07 N | 087 50 40 W |
| Immanuel Baptist Church | Church | 189 | Macoupin | 39 16 38 N | 089 52 54 W |
| Immanuel Baptist Church | Church | 110 | Massac | 37 09 27 N | 088 43 43 W |
| Immanuel Baptist Church | Church | 232 | Warren | 40 54 49 N | 090 39 39 W |
| Immanuel Baptist Church (historical) | Church | 187 | Kankakee | 41 06 54 N | 087 51 55 W |
| Immanuel Cemetery | Cemetery | 199 | Cook | 41 50 47 N | 087 54 01 W |
| Immanuel Cemetery | Cemetery | 135 | Monroe | 38 17 02 N | 089 56 37 W |
| Immanuel Cemetery | Cemetery | 140 | Perry | 38 05 07 N | 089 30 33 W |
| Immanuel Christian Reformed Church | Church | 188 | Cook | 41 44 26 N | 087 47 16 W |
| Immanuel Church | Church | 136 | Cass | 39 53 28 N | 090 30 52 W |
| Immanuel Church | Church | 207 | Champaign | 39 56 14 N | 088 00 32 W |
| Immanuel Church | Church | 253 | Cook | 42 01 56 N | 088 08 51 W |
| Immanuel Church | Church | 207 | Hancock | 40 19 48 N | 091 08 31 W |
| Immanuel Church | Church | 209 | La Salle | 41 14 32 N | 089 09 44 W |
| Immanuel Church | Church | 162 | Madison | 38 52 09 N | 089 51 22 W |
| Immanuel Church | Church | 241 | McLean | 40 38 20 N | 088 36 06 W |
| Immanuel Church | Church | 140 | Perry | 38 05 06 N | 089 30 34 W |
| Immanuel Church (historical) | Church | 180 | Madison | 38 57 22 N | 089 48 03 W |
| Immanuel Church (historical) | Church | 135 | Monroe | 38 17 01 N | 089 56 40 W |
| Immanuel Community Church | Church | 194 | Cook | 42 00 34 N | 087 52 31 W |
| Immanuel Evangelical Cemetery | Cemetery | 162 | Madison | 38 52 10 N | 089 51 21 W |
| Immanuel Evangelical Church (historical) | Church | 150 | Richland | 38 43 43 N | 088 04 53 W |
| Immanuel Evangelical Covenant Church | Church | 186 | Cook | 41 58 33 N | 087 41 48 W |
| Immanuel Evangelical Lutheran Church | Church | 238 | Boone | 42 15 41 N | 088 51 03 W |
| Immanuel Evangelical Lutheran Church | Church | 181 | Cook | 41 59 28 N | 087 40 05 W |
| Immanuel Evangelical Lutheran Church | Church | 223 | Cook | 41 29 05 N | 087 43 59 W |
| Immanuel Evangelical Lutheran Church | Church | 224 | Kane | 42 05 54 N | 088 16 24 W |
| Immanuel Evangelical Lutheran Church | Church | 244 | Stephenson | 42 17 34 N | 089 36 58 W |
| Immanuel Evangelical Lutheran School | School | 219 | Lake | 42 22 42 N | 087 52 24 W |
| Immanuel Evangelical Lutheran School | School | 241 | Stephenson | 42 17 37 N | 089 37 01 W |
| Immanuel Lutheran Cemetery | Cemetery | 135 | Cass | 39 53 28 N | 090 30 54 W |
| Immanuel Lutheran Cemetery | Cemetery | 209 | Champaign | 39 56 10 N | 088 00 33 W |
| Immanuel Lutheran Cemetery | Cemetery | 226 | Cook | 42 06 29 N | 088 02 53 W |
| Immanuel Lutheran Cemetery | Cemetery | 188 | Effingham | 39 03 34 N | 088 44 05 W |
| Immanuel Lutheran Cemetery | Cemetery | 175 | Effingham | 39 03 44 N | 088 33 42 W |
| Immanuel Lutheran Cemetery | Cemetery | 207 | Hancock | 40 20 22 N | 091 08 30 W |
| Immanuel Lutheran Cemetery | Cemetery | 205 | Iroquois | 40 38 09 N | 087 53 05 W |
| Immanuel Lutheran Cemetery | Cemetery | 210 | Kendall | 41 34 53 N | 088 27 15 W |
| Immanuel Lutheran Cemetery | Cemetery | 207 | Macoupin | 39 04 48 N | 089 43 56 W |
| Immanuel Lutheran Cemetery | Cemetery | 209 | Rock Island | 41 29 09 N | 090 33 53 W |
| Immanuel Lutheran Church | Church | 218 | Adams | 40 06 32 N | 091 01 04 W |
| Immanuel Lutheran Church | Church | 96 | Alexander | 37 00 04 N | 089 10 16 W |
| Immanuel Lutheran Church | Church | 212 | Coles | 39 28 41 N | 088 10 18 W |
| Immanuel Lutheran Church | Church | 182 | Cook | 41 55 14 N | 087 41 28 W |
| Immanuel Lutheran Church | Church | 180 | Cook | 41 43 50 N | 087 32 58 W |
| Immanuel Lutheran Church | Church | 249 | Cook | 41 59 18 N | 088 09 36 W |
| Immanuel Lutheran Church | Church | 231 | Cook | 42 06 49 N | 088 02 38 W |
| Immanuel Lutheran Church | Church | 195 | Cook | 42 02 14 N | 087 53 25 W |
| Immanuel Lutheran Church | Church | 238 | DeKalb | 41 47 27 N | 088 42 12 W |
| Immanuel Lutheran Church | Church | 200 | Douglas | 39 48 24 N | 088 16 47 W |
| Immanuel Lutheran Church | Church | 218 | DuPage | 41 47 33 N | 088 00 51 W |
| Immanuel Lutheran Church | Church | 211 | DuPage | 41 54 13 N | 087 56 17 W |
| Immanuel Lutheran Church | Church | 188 | Effingham | 39 03 36 N | 088 44 43 W |
| Immanuel Lutheran Church | Church | 239 | Iroquois | 40 31 05 N | 088 04 05 W |
| Immanuel Lutheran Church | Church | 235 | Kane | 41 50 22 N | 088 17 51 W |
| Immanuel Lutheran Church | Church | 155 | La Salle | 41 19 47 N | 088 42 20 W |
| Immanuel Lutheran Church | Church | 198 | Lake | 42 21 30 N | 087 50 29 W |
| Immanuel Lutheran Church | Church | 231 | Lee | 41 43 25 N | 089 19 42 W |
| Immanuel Lutheran Church | Church | 281 | Lee | 41 38 29 N | 089 05 23 W |
| Immanuel Lutheran Church | Church | 180 | Logan | 40 08 19 N | 089 21 18 W |
| Immanuel Lutheran Church | Church | 278 | McHenry | 42 14 10 N | 088 19 47 W |
| Immanuel Lutheran Church | Church | 185 | Menard | 39 57 42 N | 089 43 38 W |
| Immanuel Lutheran Church | Church | 201 | Monroe | 38 19 46 N | 090 09 00 W |
| Immanuel Lutheran Church | Church | 229 | Peoria | 40 45 40 N | 089 37 15 W |
| Immanuel Lutheran Church | Church | 179 | Rock Island | 41 30 51 N | 090 27 05 W |
| Immanuel Lutheran Church | Church | 195 | Vermilion | 40 08 21 N | 087 36 17 W |
| Immanuel Lutheran Church | Church | 137 | Washington | 38 25 26 N | 089 32 56 W |
| Immanuel Lutheran Church | Church | 217 | Will | 41 28 07 N | 087 38 14 W |
| Immanuel Lutheran Church | Church | 228 | Woodford | 40 54 02 N | 089 02 17 W |
| Immanuel Lutheran Church Cemetery | Cemetery | 240 | McLean | 40 38 20 N | 088 36 02 W |
| Immanuel Lutheran Church of Rock Falls | Church | 197 | Whiteside | 41 46 36 N | 089 41 54 W |
| Immanuel Lutheran School | School | 231 | Cook | 42 06 49 N | 088 02 38 W |
| Immanuel Lutheran School | School | 127 | Jackson | 37 45 54 N | 089 20 41 W |
| Immanuel Lutheran School | School | 229 | Kane | 42 05 53 N | 088 16 21 W |
| Immanuel Lutheran School | School | 266 | Stephenson | 42 17 11 N | 089 39 39 W |
| Immanuel Lutheran School | School | 136 | Washington | 38 25 25 N | 089 32 54 W |
| Immanuel Lutheran School (historical) | School | 177 | Logan | 40 08 58 N | 089 21 53 W |
| Immanuel Presbyterian Church (historical) | Church | 181 | Cook | 41 50 15 N | 087 39 09 W |
| Immanuel School | School | 255 | Boone | 42 15 02 N | 088 49 27 W |