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The Inland Empire is a region in the Pacific Northwest centered around Spokane, Washington, including much of the surrounding Columbia River basin. It extends into northern Idaho, northeastern Oregon, and far northwestern Montana.
Included in the region are the counties of:
| Regions of Idaho | |
|---|---|
| Rocky Mountains | Columbia River Plateau | Inland Empire | Basin and Range Province | |
| Boise metropolitan area | |
| Largest Cities | |
| Ammon | Blackfoot | Boise | Burley | Caldwell | Chubbuck | Coeur D'Alene | Eagle | Garden City | Hayden | Idaho Falls | Jerome | Lewiston | Meridian | Moscow | Mountain Home | Nampa | Pocatello | Post Falls | Rexburg | |
| Counties | |
| Ada | Adams | Bannock | Bear Lake | Benewah | Bingham | Blaine | Boise | Bonner | Bonneville | Boundary | Butte | Camas | Canyon | Caribou | Cassia | Clark | Clearwater | Custer | Elmore | Franklin | Fremont | Gem | Gooding | Idaho | Jefferson | Jerome | Kootenai | Latah | Lemhi | Lewis | Lincoln | Madison | Minidoka | Nez Perce | Oneida | Owyhee | Payette | Power | Shoshone | Teton | Twin | Valley | Washington | |
| Regions of Montana | |
|---|---|
| Eastern Montana - Western Montana - Inland Empire | |
| Largest Cities | |
| Anaconda | Belgrade | Billings | Bozeman | Butte | Evergreen | Glendive | Great Falls | Havre | Helena | Kalispell | Laurel | Lewistown | Livingston | Miles City | Missoula | Orchard Homes | Sidney | Whitefish | |
| Counties | |
| Beaverhead - Big Horn - Blaine - Broadwater - Carbon - Carter - Cascade - Chouteau - Custer - Daniels - Dawson - Deer Lodge - Fallon - Fergus - Flathead - Gallatin - Garfield - Glacier - Golden Valley - Granite - Hill - Jefferson - Judith - Lake - Lewis and Clark - Liberty - Lincoln - Madison - McCone - Meagher - Mineral - Missoula - Musselshell - Park - Petroleum - Phillips - Pondera - Powder River - Powell - Prairie - Ravalli - Richland - Roosevelt - Rosebud - Sanders - Sheridan - Silver Bow - Stillwater - Sweet Grass - Teton - Toole - Treasure - Valley - Wheatland - Wibaux - Yellowstone |
| State of Oregon | |||
| Regions Columbia River Gorge and Plateau | Eastern Oregon | Inland Empire | Mt. Hood Corridor | Oregon Coast | Western Oregon | Willamette Valley | |||
| Counties | Largest Cities (full list) | ||
| Baker | Benton | Clackamas | Clatsop | Columbia | Coos | Crook | Curry | Deschutes | Douglas | Gilliam | Grant | Harney | Hood River | Jackson | Jefferson | Josephine | Klamath | Lake | Lane | Lincoln | Linn | Malheur | Marion | Morrow | Multnomah | Polk | Sherman | Tillamook | Umatilla | Union | Wallowa | Wasco | Washington | Wheeler | Yamhill | Albany | Beaverton | Bend | Corvallis | Eugene | Grants Pass | Gresham | Hillsboro | Keizer | Lake Oswego | McMinnville | Medford | Milwaukie | Oregon City | Portland | Salem | Springfield | Tigard | Tualatin | West Linn | ||
| Washington | |
|---|---|
| Regions: Central Washington | Columbia River Plateau | Eastern Washington | Inland Empire | Kitsap Peninsula | Olympic Peninsula | Okanogan Country | Palouse | Puget Sound | San Juan Islands | Western Washington | Yakima Valley | |
| Largest Cities: Auburn | Bellevue | Bellingham | Bremerton | Edmonds | Everett | Federal Way | Kennewick | Kent | Kirkland | Lakewood | Olympia | Redmond | Renton | Richland | Seattle | Shoreline | Spokane | Tacoma | Vancouver | Yakima | |
| Counties: Adams | Asotin | Benton | Chelan | Clallam | Clark | Columbia | Cowlitz | Douglas | Ferry | Franklin | Garfield | Grant | Grays Harbor | Island | Jefferson | King | Kitsap | Kittitas | Klickitat | Lewis | Lincoln | Mason | Okanogan | Pacific | Pend Oreille | Pierce | San Juan | Skagit | Skamania | Snohomish | Spokane | Stevens | Thurston | Wahkiakum | Walla Walla | Whatcom | Whitman | Yakima | |