Elementary School District · IL
Northbrook Elementary School District 27
Northbrook Elementary School District 27 is a elementary school district in Illinois with a community population of 11,222. The median household income is $135,417 and the median age is 49.4.
11,222
Population
2556
People / sq mi
$135,417
Median Income
49.4
Median Age
Northbrook Elementary School District 27 covers 4 sq mi of land at 2555.7 people per square mile.
Race & Ethnicity
| White | 74.1% |
| Black or African American | 0.9% |
| Asian | 62.4% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$135,417
Median Household Income
$77,769
Per Capita Income
2.8%
Poverty Rate
2.8%
Unemployment
Housing
$664,400
Median Home Value
$2,767
Median Rent
85.3%
Homeownership
Education Attainment
96.1%
High School+
74.9%
Bachelor's+
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State rankings
Frequently Asked Questions
Northbrook Elementary School District 27 serves a community with a population of 11,222 according to the latest Census ACS 5-Year estimates. This elementary school district is located in Illinois.
The median household income in Northbrook Elementary School District 27 is $135,417, with a per capita income of $77,769. The poverty rate is 2.8%.
Northbrook Elementary School District 27 is 74.1% White, 0.9% Black or African American, 62.4% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Northbrook Elementary School District 27, 96.1% of adults have a high school diploma or higher, and 74.9% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Northbrook Elementary School District 27 is $664,400, with a median rent of $2,767. The homeownership rate is 85.3%.
More from Illinois
Data for Northbrook Elementary School District 27 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a elementary school district (GEOID: 1717850).
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.