Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Precious Blood School | School | 180 | Cook | 41 52 29 N | 087 41 13 W |
| Precision Chrome Heliport | Airport | 225 | Lake | 42 23 23 N | 088 10 53 W |
| Preeminent School (historical) | School | 184 | Rock Island | 41 40 16 N | 090 15 05 W |
| Preemption | Populated Place | 247 | Mercer | 41 18 46 N | 090 35 04 W |
| Preemption Cemetery | Cemetery | 244 | Mercer | 41 19 11 N | 090 34 50 W |
| Preemption Post Office | Post Office | 246 | Mercer | 41 18 42 N | 090 35 06 W |
| Preen Mine | Mine | 132 | Hardin | 37 27 57 N | 088 22 21 W |
| Premium School (historical) | School | 173 | Jasper | 39 07 29 N | 088 04 35 W |
| Prentice | Populated Place | 192 | Morgan | 39 51 25 N | 090 02 37 W |
| Prentice Election Precinct | Civil | 189 | Morgan | 39 50 04 N | 090 02 32 W |
| Prentice Post Office | Post Office | 191 | Morgan | 39 51 34 N | 090 02 31 W |
| Prentice School (historical) | School | 189 | Morgan | 39 51 26 N | 090 01 22 W |
| Prentis Ditch | Canal | 162 | Mercer | 41 15 35 N | 091 04 51 W |
| Prentiss Creek | Stream | | DuPage | 41 46 04 N | 088 04 32 W |
| Presbyterian Cemetery | Cemetery | 239 | Henry | 41 17 36 N | 090 16 54 W |
| Presbyterian Cemetery | Cemetery | 226 | Tazewell | 40 37 55 N | 089 20 50 W |
| Presbyterian Church | Church | 149 | Mason | 40 20 58 N | 089 58 04 W |
| Presbyterian Church of Berwyn | Church | 186 | Cook | 41 50 03 N | 087 47 49 W |
| Presbyterian Church of Chenoa | Church | 219 | McLean | 40 44 32 N | 088 43 11 W |
| Presbyterian Church of Clinton | Church | 224 | De Witt | 40 09 20 N | 088 57 36 W |
| Presbyterian Church of Waterman | Church | 252 | DeKalb | 41 46 17 N | 088 46 29 W |
| Presbyterian Church of Woodstock | Church | 287 | McHenry | 42 18 48 N | 088 26 59 W |
| Presbyterian School (historical) | School | 239 | McDonough | 40 37 05 N | 090 43 56 W |
| Presbyterian Theological Seminary | School | 182 | Cook | 41 55 28 N | 087 39 05 W |
| Prescott Elementary School | School | 182 | Cook | 41 55 44 N | 087 40 09 W |
| Prescotts Island | Island | 183 | Cook | 41 48 22 N | 087 48 30 W |
| Presentation Adult Education School | School | 184 | Cook | 41 52 16 N | 087 43 24 W |
| Presentation King Hall | Building | 185 | Cook | 41 52 15 N | 087 43 24 W |
| Presentation School | School | 184 | Cook | 41 52 18 N | 087 43 22 W |
| Presidential Park | Park | 265 | McHenry | 42 10 10 N | 088 16 18 W |
| Presidential Towers | Building | 180 | Cook | 41 52 52 N | 087 38 33 W |
| Presidents Park | Park | 231 | DuPage | 41 51 10 N | 088 05 03 W |
| Presley Cemetery | Cemetery | 140 | Hamilton | 38 02 36 N | 088 32 53 W |
| Presser Hall | Building | 248 | McLean | 40 29 23 N | 088 59 26 W |
| Prest School (historical) | School | 149 | Washington | 38 13 36 N | 089 40 00 W |
| Prestbury Branch | Stream | | Kane | 41 46 35 N | 088 25 18 W |
| Prestbury Golf Course | Locale | 206 | Kane | 41 46 46 N | 088 24 49 W |
| Prestegard School (historical) | School | 282 | Lee | 41 48 17 N | 088 57 54 W |
| Preston | Populated Place | 143 | Randolph | 38 06 22 N | 089 51 36 W |
| Preston Bottoms | Bend | 232 | Stephenson | 42 19 20 N | 089 40 26 W |
| Preston Cemetery | Cemetery | 143 | Hamilton | 38 10 06 N | 088 38 54 W |
| Preston Cemetery | Cemetery | 141 | Randolph | 38 06 14 N | 089 51 57 W |
| Preston Creek | Stream | | Stephenson | 42 19 13 N | 089 39 10 W |
| Preston Heights | Populated Place | 192 | Will | 41 29 30 N | 088 04 54 W |
| Preston Prairie School (historical) | School | 230 | Carroll | 42 04 37 N | 090 00 54 W |
| Preston School (historical) | School | 143 | Hamilton | 38 10 08 N | 088 38 52 W |
| Preston School (historical) | School | 230 | Lee | 41 48 16 N | 089 27 49 W |
| Prestonfield (subdivision) | Populated Place | 234 | Lake | 42 09 50 N | 088 02 27 W |
| Prestwick Country Club | Locale | 214 | Will | 41 29 45 N | 087 48 10 W |
| Pretty Girl Modeling School | School | 178 | Cook | 41 53 11 N | 087 37 26 W |
| Pretty Prairie School (historical) | School | 205 | Warren | 40 46 26 N | 090 27 07 W |
| Preuitt Family Cemetery | Cemetery | 158 | Madison | 38 53 24 N | 090 01 47 W |
| Price Bridge | Bridge | 116 | Wayne | 38 26 27 N | 088 15 29 W |
| Price Cemetery | Cemetery | 168 | Clay | 38 54 18 N | 088 38 52 W |
| Price Cemetery | Cemetery | 123 | Hardin | 37 27 00 N | 088 18 02 W |
| Price Cemetery | Cemetery | 135 | Lawrence | 38 49 15 N | 087 32 17 W |
| Price Cemetery | Cemetery | 259 | McLean | 40 27 12 N | 088 58 13 W |
| Price Cemetery | Cemetery | 178 | Schuyler | 40 10 41 N | 090 16 04 W |
| Price Cemetery | Cemetery | 226 | Shelby | 39 15 45 N | 089 02 03 W |
| Price Elementary School | School | 182 | Cook | 41 48 56 N | 087 36 13 W |
| Price School (historical) | School | 161 | Crawford | 38 53 40 N | 087 46 53 W |
| Price School (historical) | School | 194 | McDonough | 40 17 33 N | 090 30 25 W |
| Price School (historical) | School | 257 | McLean | 40 27 33 N | 088 57 47 W |
| Price School (historical) | School | 232 | Woodford | 40 44 02 N | 089 13 47 W |
| Price Towhead (historical) | Island | 99 | Alexander | 37 03 21 N | 089 21 54 W |
| Prichard School (historical) | School | 175 | Fulton | 40 25 20 N | 090 02 26 W |
| Prichards Grove | Woods | 243 | DeKalb | 41 44 20 N | 088 48 26 W |
| Prichett Cemetery | Cemetery | 142 | Clinton | 38 42 40 N | 089 13 34 W |
| Prier Cemetery | Cemetery | 150 | Crawford | 38 58 16 N | 087 50 17 W |
| Prime School (historical) | School | 201 | Livingston | 41 03 55 N | 088 27 24 W |
| Primera Iglesia Bautista | Church | 203 | Will | 41 32 01 N | 088 02 31 W |
| Primera Iglesia Bautista Hispana Church | Church | 192 | Rock Island | 41 30 48 N | 090 26 22 W |
| Primitive Baptist Cemetery | Cemetery | 134 | Perry | 38 03 39 N | 089 12 57 W |
| Primitive Church | Church | 140 | Jefferson | 38 16 49 N | 088 55 11 W |
| Primm School (historical) | School | 170 | Logan | 40 07 14 N | 089 21 31 W |
| Primrose Farm Park | Park | 232 | Kane | 41 57 11 N | 088 21 05 W |
| Primrose Nature Trail | Trail | 259 | Jo Daviess | 42 26 59 N | 090 03 19 W |
| Primrose School (historical) | School | 208 | Adams | 40 05 36 N | 091 06 28 W |
| Prince Cemetery | Cemetery | 141 | Hamilton | 38 06 02 N | 088 24 27 W |
| Prince Crossing | Populated Place | 225 | DuPage | 41 54 18 N | 088 11 04 W |
| Prince Lake | Lake | 216 | DuPage | 41 47 51 N | 088 00 56 W |
| Prince of Peace Catholic Church | Church | 246 | Lake | 42 24 51 N | 088 04 13 W |
| Prince of Peace Church of God in Christ | Church | 183 | Cook | 41 52 20 N | 087 43 33 W |
| Prince of Peace Lutheran Church | Church | 206 | Champaign | 40 06 36 N | 088 02 02 W |
| Prince of Peace Lutheran Church | Church | 253 | Cook | 42 03 06 N | 088 06 13 W |
| Prince of Peace Lutheran Church | Church | 232 | Cook | 42 07 53 N | 088 02 04 W |
| Prince of Peace Lutheran Church | Church | 204 | Cook | 41 31 03 N | 087 40 13 W |
| Prince of Peace Lutheran Church | Church | 217 | DuPage | 41 55 44 N | 088 00 59 W |
| Prince of Peace Lutheran Church | Church | 230 | DuPage | 41 45 03 N | 088 02 48 W |
| Prince of Peace Lutheran Church | Church | 209 | Lake | 42 24 08 N | 087 51 56 W |
| Prince of Peace Lutheran Church | Church | 273 | McHenry | 42 12 57 N | 088 20 24 W |
| Prince of Peace Lutheran Church | Church | 260 | Stephenson | 42 17 40 N | 089 39 51 W |
| Prince of Peace Lutheran Church | Church | 250 | Winnebago | 42 26 38 N | 089 05 08 W |
| Prince of Peace Lutheran School | School | 184 | Cook | 41 55 08 N | 087 44 03 W |
| Prince of Peace Missionary Baptist Church | Church | 183 | Cook | 41 46 15 N | 087 39 49 W |
| Prince of Peace School | School | 247 | Lake | 42 24 49 N | 088 04 09 W |
| Prince of Peace United Methodist Church | Church | 210 | Cook | 41 59 37 N | 088 00 16 W |
| Prince Park | Park | 216 | DuPage | 41 47 51 N | 088 00 55 W |
| Prince Run | Stream | | Stark | 40 59 41 N | 089 45 40 W |
| Princeton | Populated Place | 219 | Bureau | 41 22 05 N | 089 27 53 W |
| Princeton City Hall | Building | 213 | Bureau | 41 22 31 N | 089 27 55 W |
| Princeton High School | School | 218 | Bureau | 41 22 28 N | 089 27 34 W |
| Princeton Post Office | Post Office | 216 | Bureau | 41 22 19 N | 089 27 55 W |
| Princeton Wesleyan Church | Church | 205 | Bureau | 41 22 33 N | 089 28 47 W |
| Princeville | Populated Place | 225 | Peoria | 40 55 47 N | 089 45 27 W |
| Princeville Baptist Church | Church | 224 | Peoria | 40 55 32 N | 089 45 39 W |
| Princeville Elementary School | School | 226 | Peoria | 40 56 03 N | 089 45 12 W |
| Princeville Fire Station | Building | 227 | Peoria | 40 55 50 N | 089 45 18 W |
| Princeville High School | School | 225 | Peoria | 40 55 56 N | 089 45 08 W |
| Princeville Township Cemetery | Cemetery | 219 | Peoria | 40 56 07 N | 089 45 55 W |