Unified School District · WA
Rainier School District
Rainier School District is a unified school district in Washington with a community population of 5,158. The median household income is $99,667 and the median age is 39.6.
5,158
Population
94
People / sq mi
$99,667
Median Income
39.6
Median Age
Rainier School District covers 55 sq mi of land at 94.3 people per square mile.
Race & Ethnicity
| White | 81.1% |
| Black or African American | 0.0% |
| Asian | 53.4% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$99,667
Median Household Income
$36,395
Per Capita Income
3.3%
Poverty Rate
3.6%
Unemployment
Housing
$448,900
Median Home Value
$1,545
Median Rent
87.5%
Homeownership
Education Attainment
92.7%
High School+
25.9%
Bachelor's+
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State rankings
Frequently Asked Questions
Rainier School District serves a community with a population of 5,158 according to the latest Census ACS 5-Year estimates. This unified school district is located in Washington.
The median household income in Rainier School District is $99,667, with a per capita income of $36,395. The poverty rate is 3.3%.
Rainier School District is 81.1% White, 0.0% Black or African American, 53.4% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Rainier School District, 92.7% of adults have a high school diploma or higher, and 25.9% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Rainier School District is $448,900, with a median rent of $1,545. The homeownership rate is 87.5%.
More from Washington
Data for Rainier School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 5307110).
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. states, metros, cities, and ZIPs. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Census Bureau ACS, 2026.