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Columbia County Map, Washington

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Columbia County, Washington

Columbia Location Map Washington

Columbia County sits in the southeastern part of Washington state, bordering Oregon. Dayton, the county seat, is known for its well-preserved historic downtown. Imagine walking down a street lined with 19th-century buildings. Yep, that’s Main Street in Dayton.

The Blue Mountains loom in the distance with great hiking and camping spots. Agriculture is the backbone here with fields of wheat stretching as far as the eye can see.

The county’s also home to the Tucannon River, popular with fishermen chasing steelhead and salmon. Winters can be tough, but locals take pride in their resilience. There’s definitely a strong sense of community in Columbia County.

CategoryDetails
County NameColumbia County
County SeatDayton
PopulationApproximately 4,000
Cities, Towns, and CommunitiesDayton, Starbuck, Huntsville
Interstates and HighwaysUS-12, WA-261
FIPS Code53-013
Total Area (Land and Water)874 sq mi (Land: 869 sq mi; Water: 5 sq mi)
Adjacent Counties (and Direction)Whitman County (North), Garfield County (East), Wallowa County, Oregon (Southeast), Umatilla County, Oregon (Southwest), Walla Walla County (West), Franklin County (Northwest)
Time ZonePacific Time Zone (PT)
StateWashington
Coordinates46.3007° N, 117.9075° W
EtymologyNamed after the Columbia River
Major LandmarksPalouse Falls State Park, Tucannon River, Lewis and Clark Trail State Park
WebsiteColumbia County Website

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