Inland Empire (Pacific Northwest)
Encyclopedia
The Inland Northwest, or Inland Empire, is a region in the Pacific Northwest
Pacific Northwest
The Pacific Northwest is a region in northwestern North America, bounded by the Pacific Ocean to the west and, loosely, by the Rocky Mountains on the east. Definitions of the region vary and there is no commonly agreed upon boundary, even among Pacific Northwesterners. A common concept of the...

 centered on Spokane
Spokane, Washington
Spokane is a city located in the Northwestern United States in the state of Washington. It is the largest city of Spokane County of which it is also the county seat, and the metropolitan center of the Inland Northwest region...

, Washington, including the surrounding Columbia River
Columbia River
The Columbia River is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada, flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state...

 basin and all of North Idaho.

Included in the region are the counties of:
Washington: Adams, Asotin, Benton
Benton County, Washington
Benton County is a county located in the south-central portion of the U.S. state of Washington. The Columbia River makes up the north, south, and east boundaries of the county. In 2010, its population was 175,177. The county seat is Prosser, and its largest city is Kennewick...

, Chelan, Columbia, Douglas, Ferry, Franklin, Garfield, Grant, Kittitas, Klickitat, Lincoln, Okanogan, Pend Oreille, Spokane
Spokane County, Washington
Spokane County is a county located in the U.S. state of Washington, named after the Spokane tribe. As of the 2010 census the population was 471,221, making it the fourth most populous county in Washington state. The largest city and county seat is Spokane, the second largest city in the state,...

, Stevens, Walla Walla, Whitman
Whitman County, Washington
Whitman County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 44,776, with the majority living in its largest city, Pullman, home to Washington State University, the state's land-grant university. The county seat is at Colfax.Whitman County was...

, and Yakima
Yakima County, Washington
Yakima County is the second largest county by area in the U.S. state of Washington. It is named after the Yakama tribe of Native Americans. In the 2010 census, its population was 243,231...


Idaho: Benewah
Benewah County, Idaho
Benewah County is a county located in the U.S. state of Idaho. Established on January 23, 1915, from sections of Kootenai County, it was named for a chief of the Coeur d'Alene Tribe. As of the 2010 census the county had a population of 9,285. The county seat and largest city is St...

, Bonner
Bonner County, Idaho
Bonner County is a county located in the northern part of the U.S. state of Idaho. Established in 1907, it was named for Edwin L. Bonner, a ferry operator. As of the 2010 census, the county had a population of 40,877. The county seat and largest city is Sandpoint.-History:Bonner County was formed...

, Boundary
Boundary County, Idaho
Boundary County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 10,972. The county seat and largest city is Bonners Ferry....

, Clearwater
Clearwater County, Idaho
Clearwater County is a county located in the U.S. state of Idaho. Established in 1911, the county was named after the Clearwater River. As of the 2000 Census the county had a population of 8,930 . The county seat is Orofino....

, Idaho
Idaho County, Idaho
Idaho County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 16,267. The county seat is Grangeville...

, Kootenai
Kootenai County, Idaho
Kootenai County is a county located in the U.S. state of Idaho. The county was established in 1864, named after Kootenai tribe. The entire county comprises the Coeur d'Alene, Idaho Metropolitan Statistical Area. The population was 138,494 at the 2010 census...

, Latah
Latah County, Idaho
Latah County is a county located in the north central region of the U.S. state of Idaho. The population was 37,244 at the 2010 census. The county seat and largest city is Moscow, which is the home of the University of Idaho, the state's flagship and land-grant university...

, Lewis
Lewis County, Idaho
Lewis County is a county located in the U.S. state of Idaho. Established in 1911, it was named after the explorer Meriwether Lewis. The population was 3,821 at the 2010 census. The county seat is Nezperce, and Kamiah is the county's largest city.-Geography:...

, Nez Perce
Nez Perce County, Idaho
Nez Perce County [Eng. pron. Nezz Purse] is a county located in the U.S. state of Idaho. The population was 39,265 at the 2010 Census. The county seat is Lewiston. The county is named for the Nez Percé tribe....

, and Shoshone
Shoshone County, Idaho
Shoshone County is a county located in the U.S. state of Idaho. The county was established in 1864, named for the Native American Shoshone tribe. The population was 12,765 at the 2010 census. Shoshone County is commonly referred to as the Silver Valley, due to its century-old mining history...



According to the U.S. Census Bureau
United States Census Bureau
The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...

, the estimated population as of 2004 was 1,913,682 making it, in population, comparable to New Mexico
New Mexico
New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...

. Its Canadian
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 counterpart, north of the border, is the British Columbia Interior
British Columbia Interior
The British Columbia Interior or BC Interior or Interior of British Columbia, usually referred to only as the Interior, is one of the three main regions of the Canadian province of British Columbia, the other two being the Lower Mainland, which comprises the overlapping areas of Greater Vancouver...

.

Geography

The region is bounded by the Cascade Mountains on the west and the Rocky Mountains
Rocky Mountains
The Rocky Mountains are a major mountain range in western North America. The Rocky Mountains stretch more than from the northernmost part of British Columbia, in western Canada, to New Mexico, in the southwestern United States...

 (following the spine of the remote and rugged Cabinet Mountains
Cabinet Mountains
The Cabinet Mountains are part of the Rocky Mountains, located in northwest Montana and the Idaho panhandle, in the United States. The mountains cover an area of 2,134 square miles...

) to the east, the Blue Mountains (Oregon)
Blue Mountains (Oregon)
The Blue Mountains are a mountain range in the western United States, located largely in northeastern Oregon and stretching into southeastern Washington...

 and foothills of the Wallowa Mountains
Wallowa Mountains
The Wallowa Mountains are a mountain range located in the Columbia Plateau of northeastern Oregon in the United States. The range runs approximately 40 mi northwest to southeast in southwestern Wallowa County between the Blue Mountains to the west and the Snake River to the east. The range is...

 to the south, southeast, and encompasses the Columbia river basin (or Columbia Plateau
Columbia Plateau
The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River...

). Between the three mountain ranges are large, sweeping areas of semi-arid
Semi-arid
A semi-arid climate or steppe climate describes climatic regions that receive precipitation below potential evapotranspiration, but not extremely...

 steppe
Steppe
In physical geography, steppe is an ecoregion, in the montane grasslands and shrublands and temperate grasslands, savannas, and shrublands biomes, characterized by grassland plains without trees apart from those near rivers and lakes...

, part of which has been irrigated due to the Columbia Basin Project
Columbia Basin Project
The Columbia Basin Project in Central Washington, USA, is the irrigation network that the Grand Coulee Dam makes possible. It is the largest water reclamation project in the United States, supplying irrigation water to over of the large project area, all of which was originally intended to be...

, resulting in expansive farmland in central Washington. The Palouse
Palouse
The Palouse is a region of the northwestern United States, encompassing parts of southeastern Washington, north central Idaho and, in some definitions, extending south into northeast Oregon. It is a major agricultural area, primarily producing wheat and legumes...

, original home of the Appaloosa
Appaloosa
The Appaloosa is a horse breed best known for its colorful leopard-spotted coat pattern. There is a wide range of body types within the breed, stemming from the influence of multiple breeds of horses throughout its history. Each horse's color pattern is genetically the result of various spotting...

, is another major agricultural region located in the gently rolling hills of southeastern Washington and extending into Idaho.

The largest city in the region, Spokane ("The Lilac City"), is located near where the arid, and largely unforested Columbia plateau meets the lush forests of the Selkirk Mountains
Selkirk Mountains
The Selkirk Mountains are a mountain range spanning the northern portion of the Idaho Panhandle, eastern Washington, and southeastern British Columbia. They begin at Mica Peak near Coeur d'Alene, Idaho and extend approximately 320 km north from the border. The range is bounded on its west,...

. The urban area stretches east into Idaho along the I-90 corridor through the Spokane River
Spokane River
The Spokane River is a tributary of the Columbia River, approximately long, in northern Idaho and eastern Washington in the United States. It drains a low mountainous area east of the Columbia, passing through the city of Spokane, Washington.-Description:...

 valley across the border of Idaho to Post Falls, Idaho
Post Falls, Idaho
Post Falls is a city in Kootenai County, Idaho, United States near the Idaho state line between Spokane, Washington, and Coeur d'Alene, Idaho. The population was 17,247 at the 2000 census, and grew to 27,574 people by the 2010 census, making it Idaho's tenth largest city.-History:Post Falls is...

 and the city of Coeur d'Alene, Idaho
Coeur d'Alene, Idaho
Coeur d'Alene is the largest city and county seat of Kootenai County, Idaho, United States. It is the principal city of the Coeur d'Alene Metropolitan Statistical Area. Coeur d'Alene has the second largest metropolitan area in the state of Idaho. As of the 2010 census the population of Coeur...

 on the north bank of Lake Coeur d'Alene
Lake Coeur d'Alene
Lake Coeur d'Alene is a natural lake in the Idaho Panhandle, located in the vicinity of the city of the same name. It spans long, ranges from 1 to wide and has over of shoreline for boaters and vacationers to explore and enjoy.-Geology and geography:...

. The Northeastern Washington and Northern Idaho portion of the Inland Empire are mountainous and forested, and the crest of the Bitteroot Range of the Rocky Mountains forms part of the eastern boundary of the Inland Empire region, while the Columbia River forms a significant part of its southern boundary.

Cities of note

  • Spokane, Washington
    Spokane, Washington
    Spokane is a city located in the Northwestern United States in the state of Washington. It is the largest city of Spokane County of which it is also the county seat, and the metropolitan center of the Inland Northwest region...

    , the largest city in the Inland Empire
  • Spokane Valley, Washington
    Spokane Valley, Washington
    Spokane Valley is an incorporated city in Spokane County, Washington, United States. It is located east of Spokane and west of Coeur d'Alene. It surrounds the town of Millwood on three sides...

  • Tri-Cities, Washington
    Tri-Cities, Washington
    The Tri-Cities is a mid-sized metropolitan area in the southeastern part of the U.S. state of Washington, consisting of three neighboring cities: Kennewick, Pasco, and Richland. The cities are located at the confluence of the Yakima, Snake, and Columbia rivers in the semi-arid region of...

  • Yakima, Washington
    Yakima, Washington
    Yakima is an American city southeast of Mount Rainier National Park and the county seat of Yakima County, Washington, United States, and the eighth largest city by population in the state itself. As of the 2010 census, the city had a total population of 91,196 and a metropolitan population of...

  • Coeur d'Alene, Idaho
    Coeur d'Alene, Idaho
    Coeur d'Alene is the largest city and county seat of Kootenai County, Idaho, United States. It is the principal city of the Coeur d'Alene Metropolitan Statistical Area. Coeur d'Alene has the second largest metropolitan area in the state of Idaho. As of the 2010 census the population of Coeur...

  • Post Falls, Idaho
    Post Falls, Idaho
    Post Falls is a city in Kootenai County, Idaho, United States near the Idaho state line between Spokane, Washington, and Coeur d'Alene, Idaho. The population was 17,247 at the 2000 census, and grew to 27,574 people by the 2010 census, making it Idaho's tenth largest city.-History:Post Falls is...

  • Lewiston, Idaho
    Lewiston, Idaho
    Lewiston is a city in and also the county seat of Nez Perce County in the Pacific Northwest state of Idaho. It is the second-largest city in the northern Idaho region, behind Coeur d'Alene and ninth-largest in the state. Lewiston is the principal city of the Lewiston, ID - Clarkston, WA...

  • Walla Walla, Washington
    Walla Walla, Washington
    Walla Walla is the largest city in and the county seat of Walla Walla County, Washington, United States. The population was 31,731 at the 2010 census...

  • Wenatchee, Washington
    Wenatchee, Washington
    Wenatchee is located in North Central Washington and is the largest city and county seat of Chelan County, Washington, United States. The population within the city limits in 2010 was 31,925...

  • Pullman, Washington
    Pullman, Washington
    Pullman is the largest city in Whitman County, Washington, United States. The population was 24,675 at the 2000 census and 29,799 according to the 2010 census...

  • Moscow, Idaho
    Moscow, Idaho
    Moscow is a city in northern Idaho, situated along the Washington/Idaho border. It is the most populous city and county seat of Latah County and the home of the University of Idaho, the land grant institution and primary research university for the state...

  • Cheney, Washington
    Cheney, Washington
    Cheney is a city in Spokane County, Washington, United States. The full time resident population was 10,590 as of 2010 census. Eastern Washington University is located in Cheney, and its population grows to approximately 17,600 people on a temporary basis when classes at Eastern Washington...

  • Clarkston, Washington
    Clarkston, Washington
    Clarkston is a city in Asotin County in the southeastern part of the U.S. state of Washington. It is part of the Lewiston ID-WA Metropolitan Statistical Area. The population was 7,229 in 2010....

  • Sandpoint, Idaho
    Sandpoint, Idaho
    Sandpoint is the largest city in, and the county seat of, Bonner County, Idaho, United States. Its population was 7,365 at the 2010 census.Sandpoint's major economic contributors include forest products and light manufacturing, tourism and recreation and government services...

  • Bonners Ferry, Idaho
    Bonners Ferry, Idaho
    Bonners Ferry is a city in and the county seat of Boundary County, Idaho, United States. The population was 2,543 at the 2010 census.-History:...

  • Moses Lake, Washington
    Moses Lake, Washington
    Moses Lake is a city in Grant County, Washington, United States. The population was 20,366 as of the 2010 census. Moses Lake is the largest city in Grant County.-Background:...

  • Ellensburg, Washington
    Ellensburg, Washington
    Ellensburg is a city in, and the county seat of, Kittitas County, Washington, United States. The population was 18,174 at the 2010 census. The population was 18,250 at 2011 Estimate from Office of Financial Management. Ellensburg is located just east of the Cascade Range on I-90 and is known as the...



See also

  • Palouse
    Palouse
    The Palouse is a region of the northwestern United States, encompassing parts of southeastern Washington, north central Idaho and, in some definitions, extending south into northeast Oregon. It is a major agricultural area, primarily producing wheat and legumes...

  • Columbia Plateau (ecoregion)
    Columbia Plateau (ecoregion)
    The Columbia Plateau ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency in the U.S. states of Oregon and Washington, with small areas over the Washington state border in Idaho...

  • Inland Empire Highway
  • Lincoln (Northwest state)
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