Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Miller Chapel | Church | 175 | Effingham | 39 03 56 N | 088 38 37 W |
| Miller Chapel Cemetery | Cemetery | 173 | Effingham | 39 03 57 N | 088 38 40 W |
| Miller City | Populated Place | 101 | Alexander | 37 06 39 N | 089 21 22 W |
| Miller City Post Office | Post Office | 99 | Alexander | 37 06 42 N | 089 21 21 W |
| Miller Creek | Stream | | Alexander | 37 14 49 N | 089 26 55 W |
| Miller Creek | Stream | | Cass | 40 04 44 N | 090 03 38 W |
| Miller Creek | Stream | | Cumberland | 39 18 27 N | 088 21 13 W |
| Miller Creek | Stream | | Montgomery | 39 06 30 N | 089 31 13 W |
| Miller Creek | Stream | | Pope | 37 22 06 N | 088 29 33 W |
| Miller Creek | Stream | | Stephenson | 42 18 43 N | 089 28 13 W |
| Miller Creek | Stream | | Wayne | 38 32 42 N | 088 12 22 W |
| Miller Creek | Stream | | Wayne | 38 20 38 N | 088 33 35 W |
| Miller Creek School (historical) | School | 127 | Wayne | 38 32 09 N | 088 14 07 W |
| Miller Election Precinct | Civil | 98 | Alexander | 37 04 35 N | 089 19 17 W |
| Miller Grove School (historical) | School | 184 | Pope | 37 29 27 N | 088 37 59 W |
| Miller Lake | Reservoir | 196 | Douglas | 39 39 42 N | 088 02 48 W |
| Miller Lake | Reservoir | 156 | Jefferson | 38 23 46 N | 088 53 34 W |
| Miller Lake | Reservoir | 159 | St. Clair | 38 31 53 N | 089 56 27 W |
| Miller Lake Dam | Dam | 196 | Douglas | 39 39 42 N | 088 02 48 W |
| Miller Lake Dam | Dam | 156 | Jefferson | 38 23 46 N | 088 53 34 W |
| Miller Land Cemetery | Cemetery | 199 | Brown | 40 04 12 N | 090 45 53 W |
| Miller Landing | Locale | 127 | Calhoun | 38 53 41 N | 090 37 26 W |
| Miller Landing Strip | Airport | 174 | Fayette | 39 01 24 N | 088 57 49 W |
| Miller Meadow | Flat | 189 | Cook | 41 51 34 N | 087 49 38 W |
| Miller Meadows | Flat | 189 | Cook | 41 51 34 N | 087 49 38 W |
| Miller Memorial Park | Park | 213 | Livingston | 40 59 53 N | 088 31 11 W |
| Miller Park | Park | 246 | McLean | 40 28 04 N | 089 00 10 W |
| Miller Park Lake | Reservoir | 244 | McLean | 40 27 54 N | 089 00 18 W |
| Miller Park Lake Dam | Dam | 244 | McLean | 40 27 54 N | 089 00 18 W |
| Miller Pond | Lake | 124 | Lawrence | 38 47 24 N | 087 31 51 W |
| Miller Pond School | School | 109 | Union | 37 29 02 N | 089 22 50 W |
| Miller Riverfront Park | Park | 227 | McHenry | 42 19 32 N | 088 15 18 W |
| Miller School | Locale | 206 | Vermilion | 39 59 37 N | 087 45 25 W |
| Miller School | School | 192 | Christian | 39 21 49 N | 089 27 24 W |
| Miller School | School | 181 | Cook | 41 59 38 N | 087 41 30 W |
| Miller School | School | 183 | Cook | 42 02 29 N | 087 40 41 W |
| Miller School | School | 170 | St. Clair | 38 39 14 N | 090 00 34 W |
| Miller School (historical) | School | 237 | Bureau | 41 15 21 N | 089 50 15 W |
| Miller School (historical) | School | 273 | Carroll | 42 03 48 N | 089 43 25 W |
| Miller School (historical) | School | 140 | Clinton | 38 38 16 N | 089 27 41 W |
| Miller School (historical) | School | 210 | Coles | 39 32 05 N | 088 05 40 W |
| Miller School (historical) | School | 187 | Fayette | 39 09 35 N | 088 50 29 W |
| Miller School (historical) | School | 229 | Ford | 40 26 27 N | 088 07 03 W |
| Miller School (historical) | School | 210 | Jo Daviess | 42 28 11 N | 090 35 52 W |
| Miller School (historical) | School | 193 | La Salle | 41 28 14 N | 088 50 22 W |
| Miller School (historical) | School | 131 | Lawrence | 38 47 46 N | 087 32 20 W |
| Miller School (historical) | School | 232 | Livingston | 40 45 03 N | 088 20 07 W |
| Miller School (historical) | School | 221 | Livingston | 40 46 28 N | 088 24 40 W |
| Miller School (historical) | School | 209 | Macon | 39 56 59 N | 088 53 57 W |
| Miller School (historical) | School | 192 | Macoupin | 39 31 22 N | 089 42 07 W |
| Miller School (historical) | School | 240 | McLean | 40 34 24 N | 088 28 44 W |
| Miller School (historical) | School | 195 | Moultrie | 39 35 23 N | 088 31 26 W |
| Miller School (historical) | School | 133 | Union | 37 22 48 N | 089 14 56 W |
| Miller School (historical) | School | 209 | Warren | 40 44 44 N | 090 32 11 W |
| Miller School (historical) | School | 121 | Wayne | 38 20 43 N | 088 31 51 W |
| Miller School (historical) | School | 145 | Williamson | 37 38 45 N | 089 04 55 W |
| Miller School (historical) | School | 247 | Winnebago | 42 12 59 N | 089 03 28 W |
| Miller Shrub Swamp Nature Preserve | Park | 134 | Marion | 38 29 02 N | 088 42 53 W |
| Miller Slough | Gut | 128 | Greene | 39 11 30 N | 090 34 43 W |
| Miller Spring Lake | Reservoir | 201 | Iroquois | 40 35 55 N | 087 52 08 W |
| Miller-Anderson Woods State Nature Preserve | Park | 157 | Bureau | 41 14 15 N | 089 24 20 W |
| Miller/Maple Park Farm Airport | Airport | 262 | Kane | 41 53 55 N | 088 35 15 W |
| Millerburg School (historical) | School | 253 | Stephenson | 42 17 48 N | 089 41 45 W |
| Millers Grove | Woods | 193 | Whiteside | 41 43 10 N | 090 09 22 W |
| Millers Lake | Reservoir | 146 | Richland | 38 42 36 N | 088 03 00 W |
| Millers Lake Dam | Dam | 146 | Richland | 38 42 36 N | 088 03 00 W |
| Millers Tavern (historical) | Building | 178 | Cook | 41 53 14 N | 087 38 16 W |
| Millersburg | Populated Place | 224 | Mercer | 41 14 29 N | 090 49 07 W |
| Millershone Quarry | Mine | 230 | Jo Daviess | 42 19 43 N | 090 04 43 W |
| Millersville | Populated Place | 200 | Christian | 39 27 04 N | 089 09 29 W |
| Millersville Cemetery | Cemetery | 202 | Christian | 39 26 12 N | 089 09 38 W |
| Millette Memorial Park | Park | 188 | Cook | 41 44 22 N | 087 48 10 W |
| Millhurst | Populated Place | 171 | Kendall | 41 37 22 N | 088 33 08 W |
| Millhurst Fen Nature Preserve | Park | 173 | Kendall | 41 37 16 N | 088 33 37 W |
| Millican Cemetery | Cemetery | 161 | Marion | 38 42 05 N | 088 45 39 W |
| Millican House | Building | 180 | Cook | 41 47 35 N | 087 35 47 W |
| Milligan Cemetery | Cemetery | 191 | Christian | 39 45 24 N | 089 18 36 W |
| Milligan Hill | Summit | 188 | Union | 37 35 45 N | 089 22 21 W |
| Milliken Creek | Stream | | La Salle | 41 20 16 N | 088 47 01 W |
| Milliken Lake | Lake | 168 | Will | 41 20 10 N | 088 10 42 W |
| Millikin Elementary School | School | 198 | Henry | 41 26 27 N | 090 08 49 W |
| Millikin School (historical) | School | 190 | La Salle | 41 21 20 N | 088 45 15 W |
| Millikin University | School | 199 | Macon | 39 50 33 N | 088 58 38 W |
| Milliner School (historical) | School | 152 | Jefferson | 38 27 25 N | 088 45 20 W |
| Millington | Populated Place | 172 | Kendall | 41 33 45 N | 088 35 54 W |
| Millington-Newark Cemetery | Cemetery | 191 | Kendall | 41 33 26 N | 088 35 41 W |
| Millman Lake | Lake | 155 | Henderson | 40 44 08 N | 091 04 23 W |
| Millot School (historical) | School | 202 | Christian | 39 27 01 N | 089 04 55 W |
| Millrace Slough | Stream | | Gallatin | 37 42 34 N | 088 07 21 W |
| Mills Cemetery | Cemetery | 200 | Greene | 39 13 22 N | 090 29 25 W |
| Mills Hall | Building | 197 | Macon | 39 50 34 N | 088 58 23 W |
| Mills Park | Park | 194 | Cook | 41 55 51 N | 087 49 01 W |
| Mills Park | Park | 191 | Cook | 41 53 06 N | 087 48 03 W |
| Mills Prairie (historical) | Populated Place | 131 | Edwards | 38 30 15 N | 087 58 15 W |
| Mills Prairie School | School | 136 | White | 38 14 56 N | 088 17 52 W |
| Mills Prairie School (historical) | School | 131 | Edwards | 38 30 14 N | 087 58 16 W |
| Mills School (historical) | School | 151 | Crawford | 38 58 00 N | 087 37 58 W |
| Mills School (historical) | School | 190 | Kankakee | 41 02 51 N | 087 51 47 W |
| Mills School (historical) | School | 152 | Wayne | 38 25 53 N | 088 40 49 W |
| Millsdale | Populated Place | 158 | Will | 41 26 06 N | 088 09 51 W |
| Millseed Hollow | Valley | | Menard | 40 03 38 N | 089 59 02 W |
| Millstadt | Populated Place | 188 | St. Clair | 38 27 41 N | 090 05 30 W |
| Millstadt Junction | Populated Place | 128 | Monroe | 38 27 42 N | 090 13 04 W |
| Millstadt Post Office | Post Office | 188 | St. Clair | 38 27 34 N | 090 05 32 W |
| Millstadt Sportsmans Club Lake | Reservoir | 157 | St. Clair | 38 27 00 N | 090 01 48 W |
| Millstadt Sportsmans Club Lake Dam | Dam | 157 | St. Clair | 38 27 00 N | 090 01 48 W |
| Millstone Bluff | Summit | 220 | Pope | 37 28 10 N | 088 41 23 W |
| Millstone Bluff National Register Site | Park | 207 | Pope | 37 28 05 N | 088 41 19 W |
| Millstone Water Tower | Tower | 250 | Pope | 37 32 08 N | 088 35 12 W |
| Millville | Populated Place | 255 | Jo Daviess | 42 26 56 N | 090 03 05 W |