Elementary School District · CA
Marcum-Illinois Union Elementary School District
Marcum-Illinois Union Elementary School District is a elementary school district in California with a community population of 762. The median household income is $92,750 and the median age is 43.9.
762
Population
13
People / sq mi
$92,750
Median Income
43.9
Median Age
Marcum-Illinois Union Elementary School District covers 60 sq mi of land at 12.7 people per square mile.
Race & Ethnicity
| White | 72.8% |
| Black or African American | 0.0% |
| Asian | 53.9% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$92,750
Median Household Income
$60,702
Per Capita Income
3.6%
Poverty Rate
1.5%
Unemployment
Housing
$609,400
Median Home Value
$1,540
Median Rent
73.0%
Homeownership
Education Attainment
92.1%
High School+
27.2%
Bachelor's+
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State rankings
Frequently Asked Questions
Marcum-Illinois Union Elementary School District serves a community with a population of 762 according to the latest Census ACS 5-Year estimates. This elementary school district is located in California.
The median household income in Marcum-Illinois Union Elementary School District is $92,750, with a per capita income of $60,702. The poverty rate is 3.6%.
Marcum-Illinois Union Elementary School District is 72.8% White, 0.0% Black or African American, 53.9% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Marcum-Illinois Union Elementary School District, 92.1% of adults have a high school diploma or higher, and 27.2% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Marcum-Illinois Union Elementary School District is $609,400, with a median rent of $1,540. The homeownership rate is 73.0%.
More from California
Data for Marcum-Illinois Union Elementary School District from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 0623800).
For this entity, the underlying data on this page comes from the U.S. Census Bureau ACS and decennial files. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
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.