Elementary School District · IL
Signal Hill School District 181
Signal Hill School District 181 is a elementary school district in Illinois with a community population of 2,814. The median household income is $83,110 and the median age is 42.2.
2,814
Population
988
People / sq mi
$83,110
Median Income
42.2
Median Age
Signal Hill School District 181 covers 3 sq mi of land at 987.7 people per square mile.
Race & Ethnicity
| White | 66.6% |
| Black or African American | 0.0% |
| Asian | 38.6% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$83,110
Median Household Income
$48,385
Per Capita Income
7.7%
Poverty Rate
7.8%
Unemployment
Housing
$151,900
Median Home Value
$1,088
Median Rent
85.1%
Homeownership
Education Attainment
97.4%
High School+
41.3%
Bachelor's+
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State rankings
Frequently Asked Questions
Signal Hill School District 181 serves a community with a population of 2,814 according to the latest Census ACS 5-Year estimates. This elementary school district is located in Illinois.
The median household income in Signal Hill School District 181 is $83,110, with a per capita income of $48,385. The poverty rate is 7.7%.
Signal Hill School District 181 is 66.6% White, 0.0% Black or African American, 38.6% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Signal Hill School District 181, 97.4% of adults have a high school diploma or higher, and 41.3% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Signal Hill School District 181 is $151,900, with a median rent of $1,088. The homeownership rate is 85.1%.
More from Illinois
Data for Signal Hill School District 181 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 1736330).
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.