Home > WA > Cowlitz County > Ariel > Zip 98603

Zip Code 98603 — Ariel, WA

98603 is a ZIP Code associated with Ariel, WA, located within Cowlitz. The postal region supports an estimated population of 1,267 residents across Data Pending housing units, with a population density of 4.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (46.042230, -122.420010)

Data MetricLocal Statistic
Postal / Zip Code98603
Primary CityAriel
State / ProvinceWA
CountyCowlitz
Total Population1,267
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density4.3 people/sq mi
TimezoneAmerica/Los_Angeles

How 98603 Compares

MetricZIP 98603Cowlitz CountyWA State Average
Population1,267116,8407,816,021
Median IncomeData PendingN/AN/A
Population Density4.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 98601Amboy7.5 mi2,585N/A
Zip 98625Kalama8.2 mi7,655N/A
Zip 98675Yacolt13.1 mi7,305N/A
Zip 98674Woodland13.1 mi17,525N/A
Zip 98616Cougar13.2 mi192N/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 →