Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| College Crest Post Office (historical) | Post Office | 178 | Lane | 44 01 25 N | 123 06 20 W |
| College Heights City Park | Park | 84 | Polk | 44 56 18 N | 123 04 36 W |
| College Hill | Populated Place | 191 | Lane | 44 01 51 N | 123 05 53 W |
| College Park | Park | | Coos | 43 23 46 N | 124 14 44 W |
| College Park | Park | 65 | Washington | 45 33 35 N | 122 51 36 W |
| College Park | Park | 67 | Yamhill | 45 18 45 N | 122 58 08 W |
| Colliding Rivers Park | Park | 209 | Douglas | 43 17 51 N | 123 06 05 W |
| Collier Bar | Bar | 91 | Josephine | 42 24 59 N | 124 00 39 W |
| Collier Butte | Summit | 1284 | Curry | 42 21 56 N | 124 07 46 W |
| Collier Cone | Summit | 2276 | Lane | 44 11 18 N | 121 47 05 W |
| Collier Creek | Stream | | Curry | 42 22 10 N | 124 06 38 W |
| Collier Glacier | Glacier | 2578 | Lane | 44 09 52 N | 121 47 05 W |
| Collier Glacier View | Locale | 2176 | Lane | 44 11 11 N | 121 47 27 W |
| Collier H Buffington Memorial Park | Park | 21 | Curry | 42 24 51 N | 124 25 02 W |
| Collier Memorial State Park | Park | 1290 | Klamath | 42 38 35 N | 121 52 58 W |
| Collings Gulch | Valley | | Jackson | 42 01 51 N | 123 05 23 W |
| Collings Mountain | Summit | 1075 | Jackson | 42 02 56 N | 123 09 09 W |
| Collins Butte | Summit | 1470 | Wheeler | 44 57 44 N | 119 49 02 W |
| Collins Butte Spring | Spring | 1177 | Wheeler | 44 56 54 N | 119 48 41 W |
| Collins Cabin | Locale | 1799 | Lake | 42 06 26 N | 120 04 36 W |
| Collins Camp | Locale | 1246 | Douglas | 43 20 18 N | 122 35 00 W |
| Collins Creek | Stream | | Douglas | 42 58 35 N | 122 52 14 W |
| Collins Creek | Stream | | Douglas | 43 08 29 N | 123 05 19 W |
| Collins Creek | Stream | | Hood River | 45 37 13 N | 121 36 57 W |
| Collins Creek | Stream | | Lane | 43 54 04 N | 123 35 59 W |
| Collins Creek | Stream | | Lincoln | 44 28 45 N | 124 05 04 W |
| Collins Creek | Stream | | Union | 45 06 20 N | 117 32 35 W |
| Collins Creek State Park | Park | 7 | Lincoln | 44 28 49 N | 124 04 54 W |
| Collins Dam | Dam | 1239 | Wheeler | 44 30 11 N | 119 58 34 W |
| Collins Gulch | Valley | | Jackson | 42 36 09 N | 123 09 44 W |
| Collins Lake | Lake | 1154 | Clackamas | 45 18 12 N | 121 45 45 W |
| Collins Lake | Lake | 1277 | Harney | 43 24 15 N | 119 27 23 W |
| Collins Landing Strip | Airport | 1208 | Wheeler | 44 30 59 N | 119 58 34 W |
| Collins Landing Strip | Airport | 467 | Wheeler | 44 44 59 N | 120 12 04 W |
| Collins Lookout | Locale | 1112 | Douglas | 42 59 12 N | 122 47 41 W |
| Collins Post Office (historical) | Post Office | 14 | Lincoln | 44 28 44 N | 124 04 49 W |
| Collins Reservoir | Reservoir | 1239 | Wheeler | 44 30 11 N | 119 58 34 W |
| Collins Ridge | Ridge | 942 | Douglas | 42 58 54 N | 122 49 31 W |
| Collins Rim | Cliff | 1827 | Lake | 42 05 19 N | 120 03 55 W |
| Collins View School | School | 123 | Multnomah | 45 27 16 N | 122 41 01 W |
| Collins Waterhole | Reservoir | 1432 | Lake | 42 50 01 N | 120 09 21 W |
| Colliver Springs | Spring | 57 | Coos | 43 20 59 N | 124 12 04 W |
| Collumbaugh Reservoir | Reservoir | 1501 | Malheur | 42 32 03 N | 117 17 30 W |
| Collusion Point | Summit | 1448 | Wallowa | 45 28 34 N | 117 40 04 W |
| Collver Point | Cape | 4 | Coos | 43 19 44 N | 124 19 33 W |
| Colony Creek | Stream | | Harney | 42 03 57 N | 118 35 49 W |
| Colony Ranch | Locale | 1281 | Harney | 42 03 56 N | 118 35 39 W |
| Colorado Lake | Lake | 61 | Linn | 44 34 46 N | 123 12 58 W |
| Colorado Lake (historical) | Locale | 68 | Linn | 44 33 51 N | 123 12 39 W |
| Colorado Mine | Mine | 904 | Lane | 43 33 19 N | 122 37 14 W |
| Colossal Reservoir | Reservoir | 1525 | Malheur | 42 21 17 N | 117 19 44 W |
| Colpitts Butte | Summit | 1581 | Crook | 44 03 35 N | 119 41 41 W |
| Colpitts Spring | Spring | 967 | Wallowa | 45 55 40 N | 117 28 39 W |
| Colson Post Office (historical) | Post Office | 1247 | Klamath | 42 06 45 N | 121 41 59 W |
| Colt Canyon | Valley | | Union | 45 34 12 N | 118 05 00 W |
| Colt Creek | Stream | | Lake | 42 30 01 N | 120 43 11 W |
| Colt Lake | Lake | 1556 | Lane | 43 59 43 N | 121 51 25 W |
| Colt Spring | Spring | 1829 | Lake | 42 29 57 N | 120 43 24 W |
| Colt Ware Ditch | Canal | 1125 | Baker | 44 29 36 N | 118 07 41 W |
| Colt Waterhole | Reservoir | 1577 | Harney | 42 47 23 N | 118 53 54 W |
| Colton | Populated Place | 215 | Clackamas | 45 10 19 N | 122 26 16 W |
| Colton Dam | Dam | 1016 | Baker | 44 53 50 N | 117 50 51 W |
| Colton Elementary School | School | 267 | Clackamas | 45 09 49 N | 122 24 54 W |
| Colton High School | School | 214 | Clackamas | 45 10 14 N | 122 26 19 W |
| Colton Junior High School | School | 213 | Clackamas | 45 10 19 N | 122 26 19 W |
| Colton Lutheran Cemetery | Cemetery | 205 | Clackamas | 45 10 14 N | 122 26 04 W |
| Colton Post Office | Post Office | 215 | Clackamas | 45 10 19 N | 122 26 16 W |
| Colton Spring | Spring | 1311 | Baker | 44 28 17 N | 117 25 18 W |
| Columbia Beach | Locale | 9 | Clatsop | 46 09 32 N | 123 57 59 W |
| Columbia Botanical Gardens | Park | 22 | Columbia | 45 52 27 N | 122 48 17 W |
| Columbia Children's Aboretum | Park | 4 | Multnomah | 45 35 34 N | 122 39 34 W |
| Columbia Christian College | School | 90 | Multnomah | 45 31 31 N | 122 34 11 W |
| Columbia City | Populated Place | 15 | Columbia | 45 53 24 N | 122 48 25 W |
| Columbia City Channel | Channel | 2 | Columbia | 45 54 15 N | 122 48 25 W |
| Columbia City Park | Park | 43 | Multnomah | 45 34 46 N | 122 42 34 W |
| Columbia City Park | Park | 97 | Multnomah | 45 31 39 N | 122 24 02 W |
| Columbia City Post Office | Post Office | 15 | Columbia | 45 53 24 N | 122 48 25 W |
| Columbia City School | School | 19 | Columbia | 45 53 29 N | 122 48 29 W |
| Columbia County | Civil | 499 | Columbia | 45 54 59 N | 123 05 04 W |
| Columbia County Fairgrounds | Locale | 85 | Columbia | 45 50 59 N | 122 52 14 W |
| Columbia District Hospital | Hospital | 38 | Columbia | 45 51 49 N | 122 49 14 W |
| Columbia Edgewater Golf Club | Locale | 5 | Multnomah | 45 35 49 N | 122 38 46 W |
| Columbia Gorge District Ranger Office (historical) | Locale | 87 | Multnomah | 45 31 07 N | 122 20 24 W |
| Columbia Gorge Recreation Area | Park | 243 | Hood River | 45 38 27 N | 121 54 52 W |
| Columbia Gorge Work Center | Locale | 45 | Hood River | 45 40 56 N | 121 50 41 W |
| Columbia Grange Hall | Building | 144 | Umatilla | 45 51 39 N | 119 14 00 W |
| Columbia Hall | Locale | 303 | Wasco | 45 34 23 N | 120 59 59 W |
| Columbia Heights | Populated Place | 71 | Columbia | 45 51 49 N | 122 50 19 W |
| Columbia Heights | Summit | 402 | Umatilla | 45 55 44 N | 118 23 49 W |
| Columbia Heights School | School | 93 | Columbia | 45 51 44 N | 122 50 43 W |
| Columbia High School | School | 97 | Multnomah | 45 31 44 N | 122 24 04 W |
| Columbia Hill | Summit | 2469 | Baker | 44 51 56 N | 118 13 41 W |
| Columbia Junior High School | School | 94 | Morrow | 45 53 14 N | 119 29 54 W |
| Columbia Masonic Cemetery | Cemetery | 25 | Multnomah | 45 33 32 N | 122 33 41 W |
| Columbia Memorial Gardens Cemetery | Cemetery | 15 | Columbia | 45 47 14 N | 122 52 14 W |
| Columbia Memorial Hospital | Hospital | 6 | Clatsop | 46 11 17 N | 123 49 05 W |
| Columbia Mine | Mine | 1032 | Baker | 44 48 07 N | 117 40 31 W |
| Columbia Mine | Mine | 1797 | Baker | 44 49 35 N | 118 12 26 W |
| Columbia Mine | Mine | 639 | Josephine | 42 29 52 N | 123 15 50 W |
| Columbia Park | Park | 1097 | Deschutes | 44 03 15 N | 121 19 32 W |
| Columbia Pioneer Cemetery | Cemetery | 13 | Multnomah | 45 35 04 N | 122 40 37 W |
| Columbia Placer | Mine | 512 | Josephine | 42 38 40 N | 123 18 56 W |
| Columbia Post Office (historical) | Post Office | 16 | Multnomah | 45 34 06 N | 122 35 56 W |
| Columbia River | Stream | | Clatsop | 46 14 39 N | 124 03 29 W |
| Columbia Safety Rest Area (historical) | Locale | 21 | Columbia | 45 55 09 N | 122 49 54 W |
| Columbia Slough | Gut | 3 | Multnomah | 45 33 26 N | 122 29 27 W |
| Columbia Southern Canal | Canal | 1061 | Deschutes | 44 08 19 N | 121 23 21 W |
| Columbia View Park | Park | 78 | Multnomah | 45 31 47 N | 122 29 16 W |
| Columbia White Tailed Deer National Wildlife Rufuge | Reserve | 3 | Clatsop | 46 12 59 N | 123 27 04 W |
| Columbine Post Office (historical) | Post Office | 745 | Malheur | 44 07 60 N | 117 23 34 W |