Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Palmyra | Populated Place | 247 | Lee | 41 51 06 N | 089 34 40 W |
| Palmyra | Populated Place | 205 | Macoupin | 39 26 05 N | 089 59 45 W |
| Palmyra Christian Church | Church | 204 | Macoupin | 39 26 04 N | 089 59 49 W |
| Palmyra School (historical) | School | 200 | Moultrie | 39 32 08 N | 088 34 00 W |
| Palmyra-Modesto City Lake | Reservoir | 196 | Macoupin | 39 26 36 N | 089 57 30 W |
| Palmyra-Modesto City Lake Dam | Dam | 196 | Macoupin | 39 26 36 N | 089 57 30 W |
| Palo Alto Post Office (historical) | Post Office | 159 | Hamilton | 38 06 50 N | 088 40 00 W |
| Paloma | Populated Place | 223 | Adams | 40 01 22 N | 091 11 43 W |
| Paloma Cemetery | Cemetery | 226 | Adams | 40 01 17 N | 091 12 43 W |
| Paloma Post Office | Post Office | 225 | Adams | 40 01 18 N | 091 12 09 W |
| Paloma United Methodist Church | Church | 224 | Adams | 40 01 18 N | 091 11 47 W |
| Palos Community Hospital | Hospital | 204 | Cook | 41 40 08 N | 087 48 48 W |
| Palos Community Hospital Heliport | Airport | 204 | Cook | 41 40 08 N | 087 48 47 W |
| Palos Country Club | Locale | 211 | Cook | 41 39 07 N | 087 50 35 W |
| Palos East Elementary School | School | 204 | Cook | 41 39 43 N | 087 48 28 W |
| Palos Evangelical Lutheran Church | Church | 191 | Cook | 41 39 52 N | 087 47 44 W |
| Palos Evangelical Lutheran School | School | 190 | Cook | 41 39 54 N | 087 47 44 W |
| Palos Fen Nature Preserve | Park | 190 | Cook | 41 41 53 N | 087 50 29 W |
| Palos Golf Club (historical) | Locale | 186 | Cook | 41 41 50 N | 087 54 21 W |
| Palos Heights | Populated Place | 190 | Cook | 41 40 05 N | 087 47 47 W |
| Palos Heights Christian Reformed Church | Church | 189 | Cook | 41 39 34 N | 087 47 34 W |
| Palos Heights Public Library | Building | 190 | Cook | 41 39 51 N | 087 47 37 W |
| Palos Heights School | School | 189 | Cook | 41 39 40 N | 087 47 24 W |
| Palos Hills | Populated Place | 182 | Cook | 41 41 48 N | 087 49 01 W |
| Palos Hills Golf Club | Locale | 180 | Cook | 41 41 58 N | 087 48 13 W |
| Palos Park | Populated Place | 210 | Cook | 41 40 02 N | 087 49 49 W |
| Palos Park Presbyterian Church | Church | 212 | Cook | 41 39 59 N | 087 50 08 W |
| Palos Park School | School | 204 | Cook | 41 39 42 N | 087 48 28 W |
| Palos Park Village Hall | Building | 203 | Cook | 41 40 01 N | 087 50 16 W |
| Palos Park Woods | Woods | 216 | Cook | 41 40 36 N | 087 50 16 W |
| Palos Primary Care Medical Center | Hospital | 222 | Cook | 41 36 42 N | 087 51 51 W |
| Palos School | School | 214 | Cook | 41 40 29 N | 087 50 08 W |
| Palos School Number 116 (historical) | School | 215 | Cook | 41 42 36 N | 087 53 09 W |
| Palos South Middle School | School | 214 | Cook | 41 39 03 N | 087 49 14 W |
| Palos Springs (historical) | Locale | 188 | Cook | 41 40 24 N | 087 48 33 W |
| Palos United Methodist Church | Church | 190 | Cook | 41 40 17 N | 087 47 46 W |
| Palos West Elementary School | School | 218 | Cook | 41 39 31 N | 087 52 32 W |
| Pals International School of Beauty Culture | School | 182 | Cook | 41 50 40 N | 087 42 42 W |
| Pals Pre-School and Kindergarten | School | 198 | Peoria | 40 43 52 N | 089 35 56 W |
| Pals Pre-School and Kindergarten | School | 238 | Peoria | 40 46 36 N | 089 37 43 W |
| Palzo | Populated Place | 134 | Williamson | 37 38 55 N | 088 45 48 W |
| Pamela Park | Park | 135 | Williamson | 37 43 29 N | 088 56 56 W |
| Pana | Populated Place | 213 | Christian | 39 23 20 N | 089 04 48 W |
| Pana Christian Church | Church | 205 | Christian | 39 22 57 N | 089 04 01 W |
| Pana City Hall | Building | 213 | Christian | 39 23 17 N | 089 04 52 W |
| Pana Community Hospital | Hospital | 210 | Christian | 39 22 47 N | 089 05 04 W |
| Pana Country Club | Locale | 208 | Christian | 39 22 40 N | 089 04 29 W |
| Pana Health Care Center | Hospital | 210 | Christian | 39 22 44 N | 089 05 16 W |
| Pana High School | School | 213 | Christian | 39 22 54 N | 089 05 23 W |
| Pana Junior High School | School | 214 | Christian | 39 23 05 N | 089 04 55 W |
| Pana Lake | Reservoir | 183 | Shelby | 39 21 42 N | 089 01 18 W |
| Pana Lake Dam | Dam | 183 | Shelby | 39 21 42 N | 089 01 18 W |
| Pana Learning Center | School | 210 | Christian | 39 23 40 N | 089 05 27 W |
| Pana Post Office | Post Office | 214 | Christian | 39 23 13 N | 089 04 56 W |
| Pana Quarry | Mine | 197 | Christian | 39 23 26 N | 089 14 30 W |
| Panama | Populated Place | 180 | Bond | 39 01 46 N | 089 31 27 W |
| Panama Lake | Reservoir | 175 | Montgomery | 39 02 06 N | 089 31 02 W |
| Panama Lake Dam | Dam | 175 | Montgomery | 39 02 06 N | 089 31 02 W |
| Pancake Hollow | Valley | | Calhoun | 39 15 40 N | 090 43 55 W |
| Pancake School (historical) | School | 156 | Menard | 40 05 30 N | 089 46 33 W |
| Panfish Park | Park | 231 | DuPage | 41 51 25 N | 088 03 31 W |
| Panhandle Eastern Waverly Lake | Reservoir | 194 | Morgan | 39 34 24 N | 089 59 12 W |
| Panhandle Eastern Waverly Lake Dam | Dam | 194 | Morgan | 39 34 24 N | 089 59 12 W |
| Panhandle School (historical) | School | 162 | Marion | 38 31 12 N | 088 51 58 W |
| Pankey Branch | Stream | | Saline | 37 44 42 N | 088 30 29 W |
| Pankey Pond Ditch | Canal | 135 | Cass | 39 53 14 N | 090 28 56 W |
| Pankeys Store (historical) | Locale | 112 | Hardin | 37 30 15 N | 088 17 57 W |
| Pankeyville | Populated Place | 114 | Saline | 37 42 30 N | 088 32 10 W |
| Pankhurst Memorial Library | Building | 226 | Lee | 41 42 53 N | 089 19 39 W |
| Pannier Flying Club Airport | Airport | 244 | McLean | 40 29 57 N | 089 05 11 W |
| Panola | Populated Place | 224 | Woodford | 40 47 01 N | 089 01 16 W |
| Panorama Hills | Populated Place | 155 | Clinton | 38 43 03 N | 089 17 24 W |
| Panorama Valley (subdivision) | Populated Place | 251 | Winnebago | 42 14 05 N | 088 59 38 W |
| Panther Creek | Stream | | Cass | 40 03 35 N | 090 10 00 W |
| Panther Creek | Stream | | Christian | 39 32 43 N | 089 22 11 W |
| Panther Creek | Stream | | Clay | 38 46 41 N | 088 29 23 W |
| Panther Creek | Stream | | Fayette | 39 05 21 N | 089 12 05 W |
| Panther Creek | Stream | | Hancock | 40 12 31 N | 091 16 15 W |
| Panther Creek | Stream | | Hancock | 40 18 57 N | 090 57 21 W |
| Panther Creek | Stream | | Jasper | 39 05 33 N | 087 58 43 W |
| Panther Creek | Stream | | Macoupin | 39 06 25 N | 089 46 03 W |
| Panther Creek | Stream | | Macoupin | 39 31 07 N | 090 05 21 W |
| Panther Creek | Stream | | Perry | 37 59 43 N | 089 20 28 W |
| Panther Creek | Stream | | Pike | 39 37 31 N | 090 47 40 W |
| Panther Creek | Stream | | Sangamon | 39 38 54 N | 089 39 49 W |
| Panther Creek | Stream | | Washington | 38 13 55 N | 089 18 38 W |
| Panther Creek | Stream | | Woodford | 40 39 40 N | 089 11 47 W |
| Panther Creek Cemetery | Cemetery | 196 | Macoupin | 39 29 09 N | 090 04 41 W |
| Panther Creek Church | Church | 198 | Macoupin | 39 30 24 N | 090 03 25 W |
| Panther Creek School (historical) | School | 147 | Calhoun | 39 22 05 N | 090 39 38 W |
| Panther Creek School (historical) | School | 188 | Macoupin | 39 30 39 N | 090 04 57 W |
| Panther Creek School (historical) | School | 226 | Woodford | 40 41 27 N | 089 11 18 W |
| Panther Creek State Conservation Area | Park | 169 | Cass | 40 00 15 N | 090 10 00 W |
| Panther Den Wilderness | Reserve | 206 | Union | 37 35 34 N | 089 04 30 W |
| Panther Fork | Stream | | Jefferson | 38 27 43 N | 088 49 03 W |
| Panther Fork Cemetery | Cemetery | 172 | Jefferson | 38 26 59 N | 088 50 52 W |
| Panther Fork Church | Church | 173 | Jefferson | 38 26 59 N | 088 50 51 W |
| Panther Grove School (historical) | School | 189 | Cass | 39 56 42 N | 090 05 53 W |
| Panther Hollow | Valley | | Hardin | 37 33 00 N | 088 07 15 W |
| Panther Mine | Mine | 123 | Perry | 38 02 41 N | 089 19 10 W |
| Panther School (historical) | School | 174 | Menard | 40 03 41 N | 089 53 10 W |
| Panther Slough | Gut | | Cass | 40 07 51 N | 090 20 21 W |
| Panton Mill Park | Park | 213 | Kane | 41 59 43 N | 088 17 43 W |
| Papineau | Populated Place | 192 | Iroquois | 40 58 09 N | 087 42 59 W |
| Papineau Cemetery | Cemetery | 192 | Iroquois | 40 58 00 N | 087 43 21 W |
| Papoose Lake | Lake | 208 | Cook | 41 39 53 N | 087 51 32 W |
| Papoose Lake | Reservoir | 208 | Cook | 41 39 54 N | 087 51 30 W |
| Papoose Lake Dam | Dam | 208 | Cook | 41 39 54 N | 087 51 30 W |
| Papoose Park | Park | 186 | Cook | 41 35 11 N | 087 36 41 W |
| Pappoose Grove | Woods | 195 | Kendall | 41 35 11 N | 088 33 28 W |