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Ottawa Township High School District 140, Illinois

Ottawa Township High School District 140 is a secondary (high school) district in LaSalle County, Illinois, for grades 9–12. About 30,670 people live in it (2020–2024 estimate). It covers 234 sq mi (605 km²) of land.

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Ottawa Township High School District 140 in Illinois
LaSalle-Peru Township High School District 120Seneca Township High School District 160
Ottawa Township High School District 140 and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
30,670 ± 671
Grades
9–12
Type
Secondary (high school) district
County
LaSalle County
Land area
234 sq mi (605 km²)
Median household income
$75,441 ± $5,305
Median home value
$165,800 ± $5,740
Water area
5.17 sq mi (13.4 km²)
State
Illinois
Census code (GEOID)
1730330
Coordinates (central point)
41.330490, -88.831869
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 Ottawa Township High School District 140, largest first

  1. Ottawa (city)18,447 people
  2. Ottawa Township11,204 people
  3. South Ottawa Township8,322 people
  4. Marseilles (city)4,279 people
  5. Rutland Township3,589 people
  6. Dayton Township1,971 people
  7. Fall River Township900 people
  8. Farm Ridge Township871 people
  9. Wallace Township623 people
  10. Naplate (village)589 people
  11. Grand Ridge (village)584 people
  12. Dayton (CDP)271 people
All 13
  1. Grand Rapids Township179 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. Streator Township High School District 4012 mi south
  2. LaSalle-Peru Township High School District 12013 mi west
  3. Seneca Township High School District 16015 mi east
  4. Mendota Township High School District 28022 mi northwest

These share a boundary with Ottawa Township High School District 140. 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 Ottawa Township High School District 140 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.