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ZIP Code 98611
Castle Rock, WA, Cowlitz County
Population
9,302
Land area
136.1sq mi
People per sq mi
68
City
Castle Rock
ZIP 98611 and nearby ZIP codes
ZIP 98611 at a glance
- ZIP 98611 (Castle Rock) is 42% less dense than Washington as a whole.
- Households here earn a median of $86,322 a year, 12% less than the Washington figure of $98,141.
- A typical owner-occupied home is valued at $425,700 (25% below Washington) and median rent is $1,250 a month.
Local data for ZIP 98611
Counts from official public data
Housing and community stats
ZIP 98611, American Community Survey 2020-2024
Median household income
$86,322
Poverty rate
8.5%
Median home value
$425,700
Prices +6.5% in a year
Median rent
$1,250/mo
Homeownership
83.8%
Bachelor's or higher
14.9%
Median age
43.7
Average commute
29.2 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
160
ZIP Business Patterns 2023
Employees
902
$38.7M annual payroll
PPP loans
$6.7M
126 loans
Campaign donations
$22.8K
10% D, 45% R, 2026 cycle
Environment and hazard risk
ZIP 98611, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: volcanic activity
Storm events since 1996
80
Countywide, mostly flood
Flood insurance policies
839
2.0% of homes, county
July high / Jan low
79° / 35°F
48.1 inches of rain a year
Health statistics
Share of adults in ZIP 98611, CDC PLACES estimates
Obesity
39.7%
U.S. 33.3% +6.4 pts
Diabetes
11.5%
U.S. 12.1% -0.6 pts
Smoking
12.9%
U.S. 12.8% about the same
Uninsured (18-64)
7.4%
U.S. 11.1% -3.7 pts
Frequently asked questions
- What city is ZIP code 98611?
- ZIP code 98611 is in Castle Rock, WA (Cowlitz County).
- What county is ZIP code 98611 in?
- ZIP code 98611 is mostly in Cowlitz County, Washington.
- How many people live in ZIP code 98611?
- About 9,302 people live in the 98611 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.