Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Prugh Farm Plot | Cemetery | 196 | Des Moines | 40 45 30 N | 091 06 51 W |
| Prussia | Populated Place | 414 | Adair | 41 22 26 N | 094 30 23 W |
| Prussia Cemetery | Cemetery | 410 | Adair | 41 22 31 N | 094 31 41 W |
| Prussia Centre | Locale | 407 | Adair | 41 22 29 N | 094 31 45 W |
| Prussia Centre Post Office (historical) | Post Office | 412 | Adair | 41 21 10 N | 094 31 36 W |
| Prussia Post Office (historical) | Post Office | 409 | Adair | 41 22 50 N | 094 29 26 W |
| Psychology Number One Building | Building | 281 | Black Hawk | 42 30 48 N | 092 27 36 W |
| Public Safety Building | Building | 198 | Johnson | 41 39 26 N | 091 32 18 W |
| Public Square Park | Park | 251 | Black Hawk | 42 24 56 N | 092 12 50 W |
| Puckerbrush Access | Locale | 262 | Dallas | 41 34 05 N | 093 57 36 W |
| Puddle Jumper Trail | Trail | 418 | Sioux | 42 59 40 N | 096 02 16 W |
| Puerta Al Cielo Pentecostal Church | Church | 212 | Muscatine | 41 25 40 N | 091 04 48 W |
| Puhl Wildlife Area | Park | 307 | Floyd | 42 58 40 N | 092 48 11 W |
| Pulaski | Populated Place | 253 | Davis | 40 41 49 N | 092 16 24 W |
| Pulaski (historical) | Locale | 255 | Davis | 40 41 40 N | 092 16 24 W |
| Pulaski Cemetery | Cemetery | 253 | Davis | 40 42 01 N | 092 16 26 W |
| Pulaski Church | Church | 257 | Davis | 40 40 05 N | 092 17 38 W |
| Pulaski Fire Department | Building | 253 | Davis | 40 41 49 N | 092 16 24 W |
| Pulaski Park | Park | 250 | Davis | 40 41 54 N | 092 16 20 W |
| Pulaski Park | Park | 338 | Woodbury | 42 28 45 N | 096 22 45 W |
| Pulaski Post Office | Post Office | 253 | Davis | 40 41 49 N | 092 16 24 W |
| Pulaski United Methodist Church | Church | 253 | Davis | 40 41 49 N | 092 16 24 W |
| Pulmonary Associates Center | Hospital | 385 | Woodbury | 42 30 55 N | 096 24 36 W |
| Pulmonary Medicine Specialists Center | Hospital | 325 | Pottawattamie | 41 16 05 N | 095 50 24 W |
| Pulpit Rock | Cliff | 265 | Winneshiek | 43 18 03 N | 091 48 29 W |
| Pumphery Park | Park | 229 | Jefferson | 41 00 19 N | 091 56 45 W |
| Pumpkin Creek | Stream | | Clinton | 42 04 48 N | 090 44 58 W |
| Pumpkin Run | Stream | | Monona | 42 11 12 N | 095 49 31 W |
| Pumptown Cemetery | Cemetery | 347 | Ringgold | 40 52 00 N | 094 04 01 W |
| Purcell Cemetery | Cemetery | 336 | Harrison | 41 44 30 N | 095 49 01 W |
| Purcell Creek | Stream | | Kossuth | 43 02 09 N | 094 12 19 W |
| Purdom Cemetery | Cemetery | 190 | Van Buren | 40 43 39 N | 091 58 32 W |
| Purdy | Populated Place | 273 | Lucas | 41 09 38 N | 093 13 60 W |
| Purdy (historical) | Locale | 273 | Lucas | 41 09 38 N | 093 13 60 W |
| Purdy Post Office (historical) | Post Office | 273 | Lucas | 41 09 38 N | 093 13 60 W |
| Purgatory Creek | Stream | | Carroll | 42 06 11 N | 094 39 31 W |
| Pusey Elementary School | School | 317 | Pottawattamie | 41 14 48 N | 095 50 35 W |
| Putman Cemetery | Cemetery | 379 | Monona | 42 01 24 N | 095 45 03 W |
| Putnam Museum | Building | 177 | Scott | 41 31 34 N | 090 36 05 W |
| Putnam Museum | Building | 213 | Scott | 41 31 51 N | 090 36 03 W |
| Putnam Post Office (historical) | Post Office | 339 | Fayette | 42 39 36 N | 091 42 18 W |
| Pyche Soccer Field | Locale | 295 | Polk | 41 44 12 N | 093 37 29 W |
| Pymosa Post Office (historical) | Post Office | 387 | Cass | 41 29 00 N | 094 57 21 W |
| Q Pond | Reservoir | 318 | Clarke | 41 02 41 N | 093 46 48 W |
| Q Pond City Park | Park | 330 | Clarke | 41 02 35 N | 093 46 41 W |
| Quad Cities Vineyard Christian Church | Church | 173 | Scott | 41 31 21 N | 090 35 08 W |
| Quad City Korean Community Church | Church | 204 | Scott | 41 31 53 N | 090 30 02 W |
| Quad-County Grain Incorporated Elevator | Locale | 256 | Mahaska | 41 16 30 N | 092 37 01 W |
| Quadrangle Residence Hall | Building | 219 | Johnson | 41 39 35 N | 091 32 41 W |
| Quail Avenue Bridge | Bridge | 363 | Carroll | 42 01 50 N | 094 47 01 W |
| Quail Creek Golf Course | Locale | 235 | Johnson | 41 44 05 N | 091 36 46 W |
| Quail Run Golf Course | Locale | 336 | Pottawattamie | 41 26 28 N | 095 38 26 W |
| Quaker Cemetery | Cemetery | 387 | Guthrie | 41 31 30 N | 094 30 05 W |
| Quaker Cemetery | Cemetery | 436 | Lyon | 43 17 14 N | 095 52 12 W |
| Quaker Mill Pond | Reservoir | 288 | Delaware | 42 30 28 N | 091 28 26 W |
| Quakerdale School | School | 322 | Hardin | 42 18 45 N | 093 10 15 W |
| Quality Farm Supply Incorporated Elevator | Locale | 432 | Sioux | 43 11 19 N | 096 00 19 W |
| Quam Wildlife Area | Park | 357 | Winnebago | 43 27 25 N | 093 54 21 W |
| Quandahl | Populated Place | 250 | Allamakee | 43 26 60 N | 091 36 24 W |
| Quandahl Cemetery | Cemetery | 269 | Winneshiek | 43 27 00 N | 091 37 33 W |
| Quandahl Post Office (historical) | Post Office | 250 | Allamakee | 43 26 60 N | 091 36 24 W |
| Quarry | Locale | 272 | Marshall | 42 01 02 N | 092 48 19 W |
| Quarry | Populated Place | 317 | Dallas | 41 31 41 N | 094 04 49 W |
| Quarry | Populated Place | 272 | Marshall | 42 01 02 N | 092 48 19 W |
| Quarry Bridge | Bridge | 257 | Marshall | 42 01 35 N | 092 48 30 W |
| Quarry Post Office (historical) | Post Office | 272 | Marshall | 42 01 02 N | 092 48 19 W |
| Quarter Section Run | Stream | | Bremer | 42 40 46 N | 092 25 23 W |
| Quasdorf Wagon, Machine and Blacksmith Shop Museum | Building | 351 | Wright | 42 39 34 N | 093 30 02 W |
| Quasqueton | Populated Place | 269 | Buchanan | 42 23 40 N | 091 45 40 W |
| Quasqueton (historical) | Locale | 269 | Buchanan | 42 23 35 N | 091 45 38 W |
| Quasqueton Cemetery | Cemetery | 271 | Buchanan | 42 23 55 N | 091 45 45 W |
| Quasqueton Post Office | Post Office | 270 | Buchanan | 42 23 38 N | 091 45 31 W |
| Quebec Post Office (historical) | Post Office | 356 | Hardin | 42 17 45 N | 093 12 19 W |
| Queen City (historical) | Populated Place | 349 | Adams | 41 00 19 N | 094 42 36 W |
| Queen City Cemetery | Cemetery | 365 | Adams | 41 00 45 N | 094 42 31 W |
| Queen City Post Office (historical) | Post Office | 391 | Adams | 40 59 30 N | 094 40 56 W |
| Queen of Apostles Church | Church | 299 | Pottawattamie | 41 15 31 N | 095 53 58 W |
| Queen of Heaven Catholic Church | Church | 311 | Grundy | 42 18 50 N | 092 35 46 W |
| Queens Point (historical) | Locale | 277 | Madison | 41 17 15 N | 093 53 47 W |
| Queens Point Post Office (historical) | Post Office | 277 | Madison | 41 17 15 N | 093 53 47 W |
| Quercus Wilderness Area | Reserve | 228 | Mahaska | 41 12 00 N | 092 40 01 W |
| Quick | Populated Place | 342 | Pottawattamie | 41 17 24 N | 095 40 13 W |
| Quick Post Office (historical) | Post Office | 342 | Pottawattamie | 41 17 24 N | 095 40 13 W |
| Quiet Dell School | School | 292 | Clarke | 41 07 08 N | 093 39 17 W |
| Quiet Valley Heliport | Airport | 228 | Scott | 41 42 15 N | 090 28 05 W |
| Quilhart (historical) | Populated Place | 292 | Polk | 41 43 07 N | 093 31 58 W |
| Quimby | Populated Place | 361 | Cherokee | 42 37 49 N | 095 38 31 W |
| Quimby (historical) | Locale | 362 | Cherokee | 42 37 43 N | 095 38 33 W |
| Quimby Baptist Church | Church | 361 | Cherokee | 42 37 45 N | 095 38 36 W |
| Quimby Fire Hall | Building | 363 | Cherokee | 42 37 37 N | 095 38 34 W |
| Quimby Golf Course | Locale | 361 | Cherokee | 42 37 49 N | 095 38 33 W |
| Quimby Post Office | Post Office | 360 | Cherokee | 42 37 50 N | 095 38 35 W |
| Quimby Public Library | Building | 361 | Cherokee | 42 37 50 N | 095 38 33 W |
| Quincy | Populated Place | 392 | Adams | 41 02 25 N | 094 47 25 W |
| Quincy Cemetery | Cemetery | 390 | Adams | 41 02 49 N | 094 47 10 W |
| Quincy Cemetery | Cemetery | 324 | Boone | 42 00 27 N | 093 57 02 W |
| Quincy Post Office (historical) | Post Office | 392 | Adams | 41 02 25 N | 094 47 25 W |
| Quinn Cemetery | Cemetery | 277 | Marshall | 42 04 60 N | 092 52 28 W |
| Quinn Cemetery | Cemetery | 361 | Ringgold | 40 51 30 N | 094 16 56 W |
| Quinn Creek | Stream | | Fayette | 43 02 05 N | 091 43 35 W |
| Quinn School (historical) | School | 215 | Clinton | 41 51 33 N | 090 28 14 W |
| Quint City Baptist Temple | Church | 213 | Scott | 41 34 13 N | 090 32 28 W |
| Quint City School | School | 202 | Scott | 41 34 13 N | 090 32 03 W |
| R C Wahlert Sports Complex | Locale | 260 | Dubuque | 42 30 43 N | 090 41 23 W |
| R Campground | Locale | 311 | Floyd | 43 03 38 N | 092 39 55 W |
| R H C L School | School | 357 | Dubuque | 42 36 08 N | 091 04 29 W |
| R H C L School | School | 372 | Dubuque | 42 36 01 N | 090 59 49 W |
| Rabbit Creek | Stream | | Clayton | 42 41 43 N | 091 20 37 W |
| Rabbit Hallow Cemetery | Cemetery | 373 | Shelby | 41 40 60 N | 095 16 11 W |
| Rabbit Island | Island | 158 | Lee | 40 36 35 N | 091 22 29 W |