Unified School District · IL
Cowden-Herrick Community Unit School District 3A
Cowden-Herrick Community Unit School District 3A is a unified school district in Illinois with a community population of 1,838. The median household income is $75,789 and the median age is 44.8.
1,838
Population
17
People / sq mi
$75,789
Median Income
44.8
Median Age
Cowden-Herrick Community Unit School District 3A covers 108 sq mi of land at 16.9 people per square mile.
Race & Ethnicity
| White | 96.0% |
| Black or African American | 0.0% |
| Asian | 72.3% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$75,789
Median Household Income
$32,505
Per Capita Income
8.0%
Poverty Rate
2.4%
Unemployment
Housing
$118,300
Median Home Value
$720
Median Rent
81.1%
Homeownership
Education Attainment
90.7%
High School+
10.0%
Bachelor's+
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State rankings
Frequently Asked Questions
Cowden-Herrick Community Unit School District 3A serves a community with a population of 1,838 according to the latest Census ACS 5-Year estimates. This unified school district is located in Illinois.
The median household income in Cowden-Herrick Community Unit School District 3A is $75,789, with a per capita income of $32,505. The poverty rate is 8.0%.
Cowden-Herrick Community Unit School District 3A is 96.0% White, 0.0% Black or African American, 72.3% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Cowden-Herrick Community Unit School District 3A, 90.7% of adults have a high school diploma or higher, and 10.0% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Cowden-Herrick Community Unit School District 3A is $118,300, with a median rent of $720. The homeownership rate is 81.1%.
More from Illinois
Data for Cowden-Herrick Community Unit School District 3A from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 1700176).
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.
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.