Cowlitz County Map, Washington

Cowlitz County Map Collection
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Cowlitz County, Washington

Cowlitz County is in southwest Washington, about an hour north of Portland. The mighty Columbia River forms the southern border of Cowlitz County. Longview and Kelso are the main cities here.
Mount St. Helens looms to the east. It’s now a National Volcanic Monument. The 1980 eruption dramatically changed the landscape. But Cowlitz County has bounced back.
Timber is still big business here. You can often smell fresh-cut lumber in the air. The county’s also becoming a hub for outdoor recreation. Fishing, hiking, and hunting are popular pastimes. Cowlitz County is a place that honors its past while looking to the future.
Category | Details |
---|---|
County Name | Cowlitz County |
County Seat | Kelso |
Population | Approximately 115,000 |
Cities, Towns, and Communities | Longview, Kelso, Castle Rock, Kalama, Woodland |
Interstates and Highways | I-5, WA-4, WA-503 |
FIPS Code | 53-015 |
Total Area (Land and Water) | 1,166 sq mi (Land: 1,140 sq mi; Water: 26 sq mi) |
Adjacent Counties (and Direction) | Lewis County (North), Skamania County (East), Clark County (South), Wahkiakum County (West), Columbia County (South) |
Time Zone | Pacific Time Zone (PT) |
State | Washington |
Coordinates | 46.1879° N, 122.6762° W |
Etymology | Named after the Cowlitz Native American tribe |
Major Landmarks | Mount St. Helens National Volcanic Monument, Lake Sacajawea Park, Lewis and Clark Bridge |
Website | Cowlitz County Website |
PHYSICAL MAP
Cowlitz County Topographic Map
Cowlitz County is defined by its forested valleys and mountainous terrain. The Cowlitz River runs north to south, with steep, green ridges rising on either side. In the eastern part of the county, the land begins climbing toward Mount St. Helens. You can see part of the eruption impact area in our topographic map below.

TRANSPORTATION MAP
Cowlitz County Road Map
Cowlitz is mainly served by Interstate 5, which runs straight down the western portion. Though I-5 is key to the region, smaller highways reach into the hillier interior. Our zoom tool lets you follow every highway into the trees.

SATELLITE IMAGERY
Cowlitz County Satellite Map
Forest blankets much of the county. Along the river valleys, you’ll spot towns and roads stitched between the green. But the farther east you look, the darker and denser the forest becomes. This is true especially near the national forest boundary.

OUTLINE MAP
Cowlitz County Blank Map
Cowlitz County has an uneven shape. Borders are straight everywhere but the bottom one. The Columbia River marks part of its southwestern border. Though it doesn’t touch another state directly, it sits just across the river from Oregon.

Neighboring Counties
Here are the 5 neighboring counties of Cowlitz County: