Unified School District · WA
Index School District
Index School District is a unified school district in Washington with a community population of 512. The median household income is $88,750 and the median age is 55.6.
512
Population
4
People / sq mi
$88,750
Median Income
55.6
Median Age
Index School District covers 129 sq mi of land at 4.0 people per square mile.
Race & Ethnicity
| White | 96.1% |
| Black or African American | 0.0% |
| Asian | 75.6% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$88,750
Median Household Income
$45,456
Per Capita Income
0.0%
Poverty Rate
5.4%
Unemployment
Housing
$417,100
Median Home Value
$1,358
Median Rent
89.5%
Homeownership
Education Attainment
78.6%
High School+
11.2%
Bachelor's+
Other Washington School Districts
Largest Cities in Washington
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Congressional Districts in Washington
State rankings
Frequently Asked Questions
Index School District serves a community with a population of 512 according to the latest Census ACS 5-Year estimates. This unified school district is located in Washington.
The median household income in Index School District is $88,750, with a per capita income of $45,456. The poverty rate is 0.0%.
Index School District is 96.1% White, 0.0% Black or African American, 75.6% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Index School District, 78.6% of adults have a high school diploma or higher, and 11.2% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Index School District is $417,100, with a median rent of $1,358. The homeownership rate is 89.5%.
More from Washington
Data for Index School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 5303720).
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.
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.