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zipcodes.pro — CITY/WA/CASTLE-ROCK

Castle Rock ZIP code, Washington

The ZIP code for Castle Rock, WA is 98611, and its area codes are 360 and 564.

USPS city name
1 ZIP code
Population
2,217
Area codes
360, 564

Castle Rock in numbers

About 2,217 people live in Castle Rock, in 871 households. The median household income is $69,639 a year, 29% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $348,600 (38% below the Washington median), and median gross rent is $1,222 a month. The median age is 33.9; 15.8% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 28 minutes.

Population2,217Castle Rock2,217
Households871Castle Rock871
Median age33.9Castle Rock33.9Washington38.3US 38.9
Median household income$69,639Castle Rock$69,639Washington$98,141US $80,734
Median home value$348,600Castle Rock$348,600Washington$564,600US $332,700
Median gross rent$1,222Castle Rock$1,222Washington$1,760US $1,413
Bachelor's degree or higher15.8%Castle Rock15.8%Washington39.6%US 35.7%
Mean commute28.2 minCastle Rock28.2 minWashington26.6 minUS 26.4 min
Population density1,058 / sq miCastle Rock1,058 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Castle Rock city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Castle Rock

ZIP codes with the USPS city name Castle Rock
ZIP City Type Population Median income Median home
98611 Castle Rock , WA Standard 9,302 $86,322 $425,700

Map of Castle Rock ZIP codes

98611

The ZIP codes of Castle Rock, WA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Castle Rock

The nearest larger towns are Lexington (4,413 people, 5.7 mi), Longview Heights (4,357 people, 6.8 mi) and Longview (38,069 people, 9.2 mi).

Towns near Castle Rock
TownPopulationDistance
Lexington 4,413 5.7 mi
Longview Heights 4,357 6.8 mi
Longview 38,069 9.2 mi
Kelso 12,684 10.7 mi
Kalama 3,050 17.8 mi
Woodland 6,487 25.5 mi
Chehalis 7,587 27.3 mi
St. Helens, OR 14,258 29.0 mi

More nearby: every ZIP code in Cowlitz County · Washington ZIP codes

Cite this page

zipcodes.pro. “Castle Rock, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/castle-rock

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