| Name |
County |
| Ebey's Landing National Historical Reserve |
Island County |
| Fort Vancouver National Historic Site |
Clark County |
| Hanford Reach National Monument |
Benton County |
| Klondike Gold Rush National Historical Park |
Skagway |
| Lake Chelan National Recreation Area |
Chelan County |
| Lake Roosevelt National Recreation Area |
Ferry County |
| Lewis and Clark National Historical Park |
Clatsop |
| Manhattan Project National Historical Park |
Graham |
| Minidoka National Historic Site |
Jerome |
| Mount Rainier National Park |
Pierce County |
| Mount Saint Helens National Volcanic Monument |
Skamania County |
| Nez Perce National Historical Park |
Ravalli |
| North Cascades National Park |
Whatcom County |
| Olympic National Park |
Jefferson County |
| Ross Lake National Recreation Area |
Whatcom County |
| San Juan Island National Historical Park |
San Juan County |
| San Juan Islands National Monument |
San Juan |
| Whitman Mission National Historic Site |
Walla Walla County |
