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Warren Township High School District 121, Illinois

Warren Township High School District 121 is a secondary (high school) district in Lake County, Illinois, for grades 9–12. About 69,669 people live in it (2020–2024 estimate). It covers 51 sq mi (132 km²) of land.

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Warren Township High School District 121 in Illinois
Antioch Community High School District 117Grayslake Community High School District 127
Warren Township High School District 121 and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
69,669 ± 556
Grades
9–12
Type
Secondary (high school) district
County
Lake County
Land area
51 sq mi (132 km²)
Median household income
$105,299 ± $4,478
Median home value
$328,700 ± $7,009
Water area
1.03 sq mi (2.67 km²)
State
Illinois
Census code (GEOID)
1740800
Coordinates (central point)
42.389716, -87.945887
Check a point in the school district finder

These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Towns, townships and communities in Warren Township High School District 121, largest first

  1. Warren Township65,562 people
  2. Gurnee (village)30,510 people
  3. Gages Lake (CDP)10,819 people
  4. Park City (city)7,827 people
  5. Grandwood Park (CDP)5,262 people
  6. Old Mill Creek (village)143 people

A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.

Bordering secondary (high school) districts, nearest first

  1. Grayslake Community High School District 1275.5 mi west
  2. Zion-Benton Township High School District 1266.2 mi northeast
  3. Libertyville Community High School District 1287.6 mi south
  4. Antioch Community High School District 1178.5 mi northwest

These share a boundary with Warren Township High School District 121. Distances are straight lines between central points.

Before using this answer for enrollment

A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with Warren Township High School District 121 before you rely on it.

See its schools and enrollment on NCES ↗

Find the school district where you are now or find your town or township.