Home > WA > Cowlitz County > Silverlake > Zip 98645

Zip Code 98645 — Silverlake, WA

98645 is a ZIP Code associated with Silverlake, WA, located within Cowlitz. The postal region supports an estimated population of 2,216 residents across Data Pending housing units, with a population density of 56.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (46.325090, -122.779930)

Data MetricLocal Statistic
Postal / Zip Code98645
Primary CitySilverlake
State / ProvinceWA
CountyCowlitz
Total Population2,216
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density56.3 people/sq mi
TimezoneAmerica/Los_Angeles

How 98645 Compares

MetricZIP 98645Cowlitz CountyWA State Average
Population2,216116,8407,816,021
Median IncomeData PendingN/AN/A
Population Density56.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 98611Castle Rock6.1 mi9,302N/A
Zip 98591Toledo8.2 mi3,965N/A
Zip 98649Toutle11.7 mi929N/A
Zip 98626Kelso11.9 mi26,892N/A
Zip 98593Vader12.3 mi1,541N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →