This is a list of highest points in the U.S. state of Washington, in alphabetical order by county.
| County | Name | Height
feet / m | Prominence | Range | Notes |
|---|
| Adams | Karakul Hills | 2100|ft|m}} | 190|ft|m}} | North Columbia Plateau |
| Asotin | Ray Ridge | 6180|ft|m}} | 60|ft|m}} | Blue Mountains |
| Benton | Lookout Summit | 3629|ft|m}} | 1849|ft|m}} | Rattlesnake Hills |
| Chelan | Bonanza Peak | 9511|ft|m}} | 3711|ft|m}} | North Cascades |
| Clallam | Gray Wolf Ridge | 7218|ft|m}} | 818|ft|m}} | Olympic Mountains |
| Clark | Sturgeon Rock-West Ridge | 4080|ft|m}} | 0|ft|m}} | South Washington Cascades |
| Columbia | Oregon Butte | 6387|ft|m}} | 2407|ft|m}} | Blue Mountains |
| Cowlitz | Goat Mountain in Mount St. Helens National Volcanic Monument | 4965|ft|m}} | 2005|ft|m}} | South Washington Cascades |
| Douglas | Badger Mountain | 4254|ft|m}} | 2674|ft|m}} | North Columbia Plateau |
| Ferry | Copper Butte | 7140|ft|m}} | 4740|ft|m}} | Monashee Mountains |
| Franklin | Franklin County High Point | 1640|ft|m}} | 541|ft|m}} | North Columbia Plateau |
| Garfield | Diamond Peak | 6379|ft|m}} | 779|ft|m}} | Blue Mountains |
| Grant | Beezley Hills | 2899|ft|m}} | 749|ft|m}} | North Columbia Plateau |
| Grays Harbor | Shoulder of Wynoochee Point | 4880|ft|m}} | 0|ft|m}} | Satsop Hills | 4949|foot|adj=on}} Wynoochee Point, which lies in Mason County.[1] |
| Island | Camano Island High Point | 580|ft|m}} | 580|ft|m}} |
| Jefferson | Mount Olympus | 7969|ft|m}} | 7838|ft|m}} | Olympic Mountains | Ultra prominent |
| King | Mount Daniel | 7960|ft|m}} | 3480|ft|m}} | South Washington Cascades |
| Kitsap | Gold Mountain | 1761|ft|m}} | 1521|ft|m}} | Blue Hills |
| Kittitas | Mount Daniel | 7960|ft|m}} | 3480|ft|m}} | South Washington Cascades |
| Klickitat | Indian Rock | 5845|ft|m}} | 2565|ft|m}} | North Columbia Plateau |
| Lewis | Big Horn | 8000|ft|m}} | 240|ft|m}} | South Washington Cascades |
| Lincoln | Lilienthal Mountain | 3568|ft|m}} | 1268|ft|m}} | North Columbia Plateau |
| Mason | Mount Stone | 6612|ft|m}} | 2132|ft|m}} | Olympic Mountains |
| Okanogan | North Gardner Mountain | 8956|ft|m}} | 3996|ft|m}} | North Cascades |
| Pacific | Pacific County High Point | 3000|ft|m}} | 1480|ft|m}} | Willapa Hills |
| Pend Oreille | Gypsy Peak | 7320|ft|m}} | 1720|ft|m}} | Selkirk Mountains |
| Pierce | Mount Rainier | 14,411|ft|m}} | 13,210|ft|m}} | South Washington Cascades | Ultra prominent
Highest point in Washington state |
| San Juan | Mount Constitution | 2407|ft|m}} | 2407|ft|m}} | The second highest mountain on an ocean island in the contiguous 48 states |
| Skagit | Mount Buckner | 9114|ft|m}} | 3034|ft|m}} | North Cascades |
| Skamania | Mount Adams-West Slope | 8920|ft|m}} | 0|ft|m}} | South Washington Cascades | 9677|ft|m}} prior to the 1980 eruption of Mount St. Helens |
| Snohomish | Glacier Peak | 10,520|ft|m}} | 7498|ft|m}} | North Cascades | Ultra prominent |
| Spokane | Mount Spokane | 5883|ft|m}} | 3503|ft|m}} | Selkirk Mountains |
| Stevens | Abercrombie Mountain | 7308|ft|m}} | 5168|ft|m}} | Selkirk Mountains | Ultra prominent |
| Thurston | Quiemuth Peak | 2922|ft|m}} | 762|ft|m}} | South Washington Cascades |
| Wahkiakum | Huckleberry Ridge | 2673|ft|m}} | 393|ft|m}} | Willapa Hills |
| Walla Walla | Lewis Peak | 4888|ft|m}} | 168|ft|m}} | Blue Mountains |
| Whatcom | Mount Baker | 10,781|ft|m}} | 8812|ft|m}} | North Cascades | Ultra prominent |
| Whitman | Tekoa Mountain | 4009|ft|m}} | 1089|ft|m}} | North Columbia Plateau |
| Yakima | Mount Adams | 12,276|ft|m}} | 8116|ft|m}} | South Washington Cascades | Ultra prominent |
1. ^{{citation| title=Grays Harbor County High Point|id=1053|accessdate=2014-11-03| first=Greg | last=Slayden| publisher=peakbagger.com| year=2004| url=http://www.peakbagger.com/peak.aspx?pid=1053}}