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Harrisburg Community Unit School District 3, Illinois

Harrisburg Community Unit School District 3 is a unified school district in Saline County, Illinois, for grades Pre-K to 12. About 11,644 people live in it (2020–2024 estimate). It covers 140 sq mi (362 km²) of land.

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Harrisburg Community Unit School District 3 in Illinois
Carrier Mills-Stonefort Community Unit School DistrictCrab Orchard Community Unit School District 3Eldorado Community Unit School District 4
Harrisburg Community Unit School District 3 and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
11,644 ± 477
Grades
Pre-K to 12
Type
Unified school district
County
Saline County
Land area
140 sq mi (362 km²)
Median household income
$51,442 ± $6,923
Median home value
$98,000 ± $12,482
Water area
2.63 sq mi (6.81 km²)
State
Illinois
Census code (GEOID)
1718270
Coordinates (central point)
37.700824, -88.520324
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 Harrisburg Community Unit School District 3, largest first

  1. Harrisburg Township9,838 people
  2. Harrisburg (city)8,372 people
  3. Independence Township1,050 people
  4. Mountain Township262 people
  5. Cottage Township133 people
  6. Muddy (village)67 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 unified school districts, nearest first

  1. Carrier Mills-Stonefort Community Unit School District8.1 mi southwest
  2. Eldorado Community Unit School District 411 mi north
  3. Galatia Community Unit School District 111 mi northwest
  4. Crab Orchard Community Unit School District 313 mi west
  5. Gallatin Community Unit School District 717 mi east
  6. Pope County Community Unit School District 120 mi south

These share a boundary with Harrisburg Community Unit School District 3. 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 Harrisburg Community Unit School District 3 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.