Geography of Spokane County, Washington

Geography of Spokane County, Washington

Spokane County, located in the eastern part of Washington state, is renowned for its diverse geography, which encompasses rolling prairies, forested hillsides, meandering rivers, and sparkling lakes. Its landscape, shaped by geological processes and the influence of the Spokane River, plays a significant role in shaping the county’s environment, economy, and cultural heritage.

Topography and Landforms:

According to Ehistorylib, Spokane County covers an area of approximately 1,781 square miles and is situated within the Columbia Plateau physiographic province. The county’s topography is varied, with the eastern portion characterized by rolling prairies and agricultural fields, while the western portion features forested hillsides and river valleys.

The Spokane River, which flows from its headwaters in northern Idaho, bisects the county from east to west, creating a scenic corridor that is home to a variety of wildlife and recreational opportunities. Along its course through Spokane County, the Spokane River is flanked by rugged basalt cliffs, which rise steeply from the water’s edge and provide habitat for nesting birds and other wildlife.

In addition to the Spokane River, Spokane County is home to several smaller rivers and creeks, such as the Little Spokane River, the Hangman Creek, and the Latah Creek, which flow into the Spokane River and contribute to the county’s overall hydrological network.

Rivers and Waterways:

The Spokane River, the most significant river in Spokane County, originates in the Coeur d’Alene Mountains of northern Idaho and flows westward into Washington state. Along its course through Spokane County, the Spokane River is renowned for its scenic beauty and recreational opportunities, including whitewater rafting, kayaking, fishing, and picnicking.

The Little Spokane River, a tributary of the Spokane River, flows from its headwaters near the Idaho border and meanders through forested hillsides and wetlands before joining the Spokane River near the city of Spokane. The Little Spokane River provides important habitat for fish, wildlife, and aquatic plants, as well as opportunities for paddling and nature observation.

Other notable waterways in Spokane County include Hangman Creek, which flows from its headwaters in the Palouse region and joins the Spokane River near the city of Spokane, and Latah Creek, which flows from the foothills of the Bitterroot Mountains and empties into the Spokane River near the town of Spokane Valley.

Lakes and Reservoirs:

While Spokane County is not known for its large lakes, it is home to several picturesque reservoirs and water bodies, which provide recreational opportunities and support diverse ecosystems. One of the most prominent reservoirs in the county is Long Lake, located along the Spokane River northwest of the city of Spokane.

Long Lake, covering approximately 4,000 acres, offers a variety of recreational activities, including boating, fishing, swimming, and camping. The reservoir is surrounded by forested hillsides and provides habitat for a variety of fish species, including bass, trout, and panfish.

In addition to Long Lake, Spokane County is home to smaller lakes and ponds, such as Liberty Lake, Medical Lake, and Fishtrap Lake, which provide serene settings for picnicking, birdwatching, and nature observation.


Spokane County experiences a semi-arid climate, characterized by hot, dry summers and cold, snowy winters. Summers in the county are typically warm and sunny, with average temperatures ranging from the mid-70s to low 90s Fahrenheit. Thunderstorms are common during the summer months, providing much-needed rainfall for crops and gardens.

Winters in Spokane County are cold and snowy, with average temperatures ranging from the mid-20s to low 30s Fahrenheit. The region receives significant snowfall each winter, creating opportunities for winter sports such as skiing, snowboarding, and snowshoeing in the nearby mountains.

Spring and fall in Spokane County are characterized by mild temperatures and colorful foliage, making them ideal seasons for outdoor activities such as hiking, camping, and wildlife viewing. However, both spring and fall can also bring bouts of windy weather and occasional rain showers, as well as the occasional threat of severe thunderstorms and tornadoes.

Vegetation and Wildlife:

The diverse geography and favorable climate of Spokane County support a rich array of vegetation and wildlife. The county’s natural habitats include forests, wetlands, grasslands, and riparian zones, each providing essential habitat for a wide variety of plant and animal species.

Forests in Spokane County are dominated by species such as pine, fir, cedar, and spruce, which provide food and shelter for wildlife ranging from white-tailed deer and elk to black bears and mountain lions. Wetlands and marshes are home to waterfowl, wading birds, and amphibians, while grasslands support populations of grassland birds and small mammals.

The waterways of Spokane County, including the Spokane River and its tributaries, support a variety of fish species, including trout, bass, and panfish. Additionally, the rivers and lakes provide important habitat for migratory birds and other wildlife species, making them popular destinations for birdwatching and nature photography.


The geography of Spokane County, Washington, is characterized by its diverse topography, meandering rivers, tranquil lakes, and abundant natural resources. From the rolling prairies and forested hillsides to the scenic waterways and wetlands, the county’s landscape offers a wealth of natural beauty and recreational opportunities for residents and visitors alike. Whether exploring the banks of the Spokane River, fishing in Long Lake, or hiking through the forested hills, Spokane County invites visitors to experience the wonders of the natural world in all their glory.