Cowlitz County, Washington

Browse all ZIP codes in Cowlitz County, Washington. Each ZIP code page includes population, median household income, and a map of the area.

County Statistics

Total Population 114,273
Median Household Income $78,056
Median Age 40.7
Unemployment Rate 5.0%
Poverty Rate 12.8%
ZIP Codes 11

Largest ZIP Codes in Cowlitz County

ZIP Code City Population Median Income
98632Longview50,837$61,352
98626Kelso27,000$69,423
98674Woodland15,679$86,937
98611Castle Rock9,341$83,207
98625Kalama6,827$105,873

Demographics

Race & Ethnicity

Gender

Education Level (adults 25+)

All ZIP Codes in Cowlitz County