Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Wallace City Park | Park | 36 | Multnomah | 45 31 59 N | 122 42 14 W |
| Ward (historical) | Locale | 14 | Multnomah | 45 33 29 N | 122 32 30 W |
| Wardway Post Office (historical) | Post Office | 29 | Multnomah | 45 32 13 N | 122 42 24 W |
| Warner Pacific College | School | 81 | Multnomah | 45 30 24 N | 122 35 38 W |
| Warrendale | Populated Place | 19 | Multnomah | 45 36 45 N | 122 00 56 W |
| Warrendale Lower Range | Channel | 6 | Multnomah | 45 36 59 N | 122 00 44 W |
| Warrendale Post Office (historical) | Post Office | 19 | Multnomah | 45 36 45 N | 122 00 56 W |
| Warrendale Upper Range | Channel | 6 | Multnomah | 45 37 14 N | 121 59 34 W |
| Washington City Park | Park | 237 | Multnomah | 45 30 42 N | 122 42 40 W |
| Washington High School | School | 29 | Multnomah | 45 31 08 N | 122 39 07 W |
| Washington Park International Rose Test Gardens | Park | 145 | Multnomah | 45 31 05 N | 122 42 23 W |
| Washington Park Zoo Railway Post Office | Post Office | 199 | Multnomah | 45 30 31 N | 122 42 56 W |
| Washougal Lower Range | Channel | 6 | Multnomah | 45 34 19 N | 122 21 59 W |
| Washougal Upper Range | Channel | 6 | Multnomah | 45 33 44 N | 122 20 44 W |
| Waterfront City Park | Park | 22 | Multnomah | 45 30 41 N | 122 40 35 W |
| Watson (historical) | Locale | 62 | Multnomah | 45 28 14 N | 122 34 03 W |
| Watson (historical) | Locale | 19 | Multnomah | 45 34 09 N | 122 45 15 W |
| Waud Bluff | Cliff | 16 | Multnomah | 45 34 13 N | 122 43 44 W |
| Wauna Point | Cape | 626 | Multnomah | 45 37 57 N | 121 55 43 W |
| Wauneka Point | Summit | 793 | Multnomah | 45 36 34 N | 121 58 44 W |
| Waverly Baby Home | Building | 50 | Multnomah | 45 30 05 N | 122 37 37 W |
| Webster (historical) | Locale | 15 | Multnomah | 45 34 30 N | 122 45 34 W |
| Weedin City Park | Park | 56 | Multnomah | 45 31 54 N | 122 23 01 W |
| Wellington City Park | Park | 62 | Multnomah | 45 33 11 N | 122 35 39 W |
| West Branch Falls Creek | Stream | | Multnomah | 45 30 54 N | 121 57 57 W |
| West Gresham School | School | 92 | Multnomah | 45 29 48 N | 122 26 09 W |
| West Hills School | School | 149 | Multnomah | 45 28 00 N | 122 41 57 W |
| West Oregon Lumber Company Spur (historical) | Locale | 9 | Multnomah | 45 36 44 N | 122 47 48 W |
| West Orient School | School | 159 | Multnomah | 45 28 09 N | 122 21 24 W |
| West Portland | Populated Place | 185 | Multnomah | 45 27 17 N | 122 43 57 W |
| West Portland Park | Populated Place | 197 | Multnomah | 45 26 48 N | 122 43 32 W |
| West Portland Park Natural Area | Park | 190 | Multnomah | 45 26 35 N | 122 43 13 W |
| West Portland Post Office (historical) | Post Office | 185 | Multnomah | 45 27 17 N | 122 43 57 W |
| West Powellhurst City Park | Park | 92 | Multnomah | 45 30 09 N | 122 32 34 W |
| West Powellhurst School | School | 89 | Multnomah | 45 30 04 N | 122 32 35 W |
| Western Conservative Theological Seminary | School | 82 | Multnomah | 45 30 44 N | 122 36 19 W |
| Western Ore Lumber Company (historical) | Locale | 10 | Multnomah | 45 36 11 N | 122 47 19 W |
| Westmoreland | Populated Place | 24 | Multnomah | 45 28 34 N | 122 38 49 W |
| Westmoreland City Park | Park | 18 | Multnomah | 45 28 14 N | 122 38 23 W |
| Whitaker Columbia Middle School | School | 9 | Multnomah | 45 36 02 N | 122 39 23 W |
| Whitaker Ponds Natural Area | Park | 3 | Multnomah | 45 34 24 N | 122 36 44 W |
| Whitaker School | School | 14 | Multnomah | 45 34 14 N | 122 36 33 W |
| White Shield Home | Building | 60 | Multnomah | 45 32 31 N | 122 43 21 W |
| Whitman School | School | 73 | Multnomah | 45 28 05 N | 122 35 12 W |
| Whittaker Middle School | School | 44 | Multnomah | 45 33 51 N | 122 37 19 W |
| Whitwood Court | Populated Place | 51 | Multnomah | 45 35 07 N | 122 46 19 W |
| Wiesendanger Falls | Falls | 324 | Multnomah | 45 34 24 N | 122 06 28 W |
| Wilcox School | School | 80 | Multnomah | 45 31 44 N | 122 35 12 W |
| Wildwood Golf Course | Locale | 6 | Multnomah | 45 40 42 N | 122 52 20 W |
| Wilkes City Park | Park | 22 | Multnomah | 45 33 00 N | 122 30 19 W |
| Wilkes School | School | 56 | Multnomah | 45 32 30 N | 122 29 18 W |
| Willamette Center Heliport | Airport | 12 | Multnomah | 45 31 01 N | 122 40 25 W |
| Willamette Cove | Park | 4 | Multnomah | 45 34 56 N | 122 45 12 W |
| Willamette Heights | Populated Place | 85 | Multnomah | 45 32 06 N | 122 43 03 W |
| Willamette National Cemetery | Cemetery | 237 | Multnomah | 45 27 43 N | 122 32 32 W |
| Willamette Park & Boat Ramp | Park | 4 | Multnomah | 45 28 27 N | 122 40 08 W |
| Willamette River | Stream | | Multnomah | 45 39 10 N | 122 45 53 W |
| Willamette River Airstrip | Airport | 3 | Multnomah | 45 33 19 N | 122 42 34 W |
| Willamette Slough Post Office (historical) | Post Office | 6 | Multnomah | 45 38 01 N | 122 49 19 W |
| Willamette Stone | Locale | 293 | Multnomah | 45 31 10 N | 122 44 37 W |
| Willamette Stone State Park | Park | 296 | Multnomah | 45 31 11 N | 122 44 37 W |
| Willamette Valley | Valley | | Multnomah | 45 30 00 N | 122 30 05 W |
| Willbridge | Locale | 19 | Multnomah | 45 33 42 N | 122 44 38 W |
| Willbridge Siding (historical) | Locale | 11 | Multnomah | 45 34 19 N | 122 45 18 W |
| William V Owens Sports Complex | Park | 5 | Multnomah | 45 36 04 N | 122 40 54 W |
| Willow Lower Range | Channel | 3 | Multnomah | 45 42 19 N | 122 46 04 W |
| Willow Upper Range | Channel | 3 | Multnomah | 45 41 29 N | 122 46 24 W |
| Willsburgh Post Office (historical) | Post Office | 20 | Multnomah | 45 27 54 N | 122 38 43 W |
| Wilshire City Park | Park | 75 | Multnomah | 45 33 10 N | 122 37 41 W |
| Wilson (historical) | Locale | 75 | Multnomah | 45 28 47 N | 122 30 51 W |
| Windstorm City Park | Park | 57 | Multnomah | 45 31 46 N | 122 26 10 W |
| Wood Village | Populated Place | 47 | Multnomah | 45 32 03 N | 122 25 07 W |
| Woodale City Park | Park | 107 | Multnomah | 45 31 32 N | 122 24 39 W |
| Woodland Park Hospital | Hospital | 86 | Multnomah | 45 32 09 N | 122 33 24 W |
| Woodland Park Hospital Helipad | Airport | 89 | Multnomah | 45 31 59 N | 122 33 04 W |
| Woodlawn (historical) | Locale | 19 | Multnomah | 45 34 29 N | 122 38 26 W |
| Woodlawn City Park | Park | 40 | Multnomah | 45 34 18 N | 122 39 19 W |
| Woodlawn Post Office (historical) | Post Office | 37 | Multnomah | 45 34 18 N | 122 39 06 W |
| Woodlawn School | School | 29 | Multnomah | 45 34 29 N | 122 39 10 W |
| Woodmere School | School | 73 | Multnomah | 45 28 30 N | 122 34 52 W |
| Woodrow (historical) | Locale | 88 | Multnomah | 45 29 12 N | 122 43 40 W |
| Woodrow Wilson High School | School | 167 | Multnomah | 45 28 38 N | 122 41 19 W |
| Woods Bar Light | Locale | 7 | Multnomah | 45 34 59 N | 122 31 04 W |
| Woods Memorial Natural Area | Park | 135 | Multnomah | 45 27 31 N | 122 43 28 W |
| Woodstock | Populated Place | 77 | Multnomah | 45 28 44 N | 122 36 30 W |
| Woodstock City Park | Park | 75 | Multnomah | 45 29 01 N | 122 36 44 W |
| Woodstock Community Center | Building | 77 | Multnomah | 45 28 46 N | 122 37 03 W |
| Woodstock Post Office (historical) | Post Office | 77 | Multnomah | 45 28 44 N | 122 36 30 W |
| Woodstock School | School | 75 | Multnomah | 45 28 59 N | 122 36 44 W |
| Wrenn (historical) | Locale | 20 | Multnomah | 45 29 49 N | 122 40 23 W |
| Wynne Watts School | School | 91 | Multnomah | 45 31 47 N | 122 29 43 W |
| Yamhill Neighborhood Park | Park | 78 | Multnomah | 45 30 56 N | 122 27 49 W |
| Yeon Mountain | Summit | 1006 | Multnomah | 45 35 14 N | 122 01 27 W |
| Young Creek | Stream | | Multnomah | 45 33 01 N | 122 11 53 W |
| Youngson School | School | 71 | Multnomah | 45 30 11 N | 122 35 18 W |
| Zimmerman (historical) | Locale | 9 | Multnomah | 45 29 09 N | 122 40 24 W |
| Zimmerman House Historic Park | Park | 23 | Multnomah | 45 32 48 N | 122 28 47 W |
| Aaron Mercer Reservoir | Reservoir | 236 | Polk | 44 54 13 N | 123 28 12 W |
| Academy Junior High School | School | 99 | Polk | 44 55 28 N | 123 19 06 W |
| Aebi Reservoir | Reservoir | 80 | Polk | 44 59 29 N | 123 21 09 W |
| Airlie | Populated Place | 79 | Polk | 44 45 01 N | 123 19 53 W |
| Airlie Creek | Stream | | Polk | 44 45 05 N | 123 20 04 W |
| Airlie Post Office (historical) | Post Office | 79 | Polk | 44 45 01 N | 123 19 53 W |
| Alsip Reservoir | Reservoir | 118 | Polk | 44 51 59 N | 123 17 59 W |
| American Bottom | Flat | 51 | Polk | 44 48 31 N | 123 07 11 W |
| Andersons Airfield | Airport | 112 | Polk | 45 03 19 N | 123 36 44 W |
| Applegate Creek | Stream | | Polk | 44 54 18 N | 123 25 29 W |
| Arell (historical) | Locale | 126 | Polk | 44 43 39 N | 123 31 09 W |
| Ash Creek | Stream | | Polk | 44 51 19 N | 123 10 50 W |
| Athey Canyon | Valley | | Polk | 45 03 32 N | 123 10 23 W |