Unified School District · WA
Castle Rock School District
Castle Rock School District is a unified school district in Washington with a community population of 10,165. The median household income is $79,428 and the median age is 46.0.
10,165
Population
63
People / sq mi
$79,428
Median Income
46.0
Median Age
Castle Rock School District covers 163 sq mi of land at 62.5 people per square mile.
Race & Ethnicity
| White | 85.5% |
| Black or African American | 0.0% |
| Asian | 65.5% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$79,428
Median Household Income
$38,012
Per Capita Income
5.5%
Poverty Rate
2.6%
Unemployment
Housing
$392,600
Median Home Value
$1,261
Median Rent
84.7%
Homeownership
Education Attainment
92.3%
High School+
16.7%
Bachelor's+
Other Washington School Districts
Largest Cities in Washington
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State rankings
Frequently Asked Questions
Castle Rock School District serves a community with a population of 10,165 according to the latest Census ACS 5-Year estimates. This unified school district is located in Washington.
The median household income in Castle Rock School District is $79,428, with a per capita income of $38,012. The poverty rate is 5.5%.
Castle Rock School District is 85.5% White, 0.0% Black or African American, 65.5% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Castle Rock School District, 92.3% of adults have a high school diploma or higher, and 16.7% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Castle Rock School District is $392,600, with a median rent of $1,261. The homeownership rate is 84.7%.
More from Washington
Data for Castle Rock School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 5300990).
The this entity record above pulls directly from the U.S. Census Bureau ACS and decennial files. What follows is the per-entity context — how this entity sits in the broader U.S. population demographics distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the the U.S. Census Bureau ACS and decennial files portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.