ZIP Code 98611 – Castle Rock, Washington | ZipsCode.us
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ZIP Code 98611
Castle Rock, Washington · Cowlitz
ZIP code 98611 belongs to the city of Castle Rock in Washington (Cowlitz). See all Washington ZIP Codes.
ZIP code 98611 belongs to Castle Rock, Washington, in Cowlitz. If you are mailing a letter or package to this area, use Castle Rock, WA 98611 in the address. On this page you will find the city and county for 98611, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 98611?
The city for ZIP code 98611 is Castle Rock, Washington. When you write an address in this area, the correct format is: Name, Street Address, Castle Rock, WA 98611.
ZIP Code 98611 County and State
ZIP code 98611 is located in Cowlitz, Washington. For a complete list of cities and ZIP codes across the state, see the Washington ZIP Codes page.
Nearby ZIP Codes in Cowlitz
These ZIP codes are in the same county as 98611:
ZIP Code 98611 on the Map
The map below shows the approximate center of ZIP code 98611, near Castle Rock, Washington. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 46.2783, -122.9139). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 98611
According to public U.S. Census Bureau data, ZIP code 98611 is home to a community in Washington. The figures below come from the U.S. Census and the American Community Survey (ACS).
Source: U.S. Census Bureau, American Community Survey (ACS) 2023 5-year estimates and 2023 Gazetteer. Figures are estimates and change with each new survey.
Find an Address in ZIP Code 98611
Need the full ZIP+4 code for a specific street address in Castle Rock? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 98611?
ZIP code 98611 is for Castle Rock, Washington.
What county is ZIP code 98611 in?
ZIP code 98611 is in Cowlitz, Washington.
What state is ZIP code 98611 in?
ZIP code 98611 is in Washington (WA).
How do I find the ZIP+4 for an address in 98611?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 98611?
Nearby ZIP codes include 98581 (Ryderwood), 98603 (Ariel), 98609 (Carrolls), 98616 (Cougar), 98625 (Kalama).
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