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Rochester Community Unit School District 3A, Illinois

Rochester Community Unit School District 3A is a unified school district in Sangamon County and Christian County, Illinois, for grades Pre-K to 12. About 10,634 people live in it (2020–2024 estimate). It covers 64.9 sq mi (168 km²) of land.

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Rochester Community Unit School District 3A in Illinois
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Rochester Community Unit School District 3A and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
10,634 ± 614
Grades
Pre-K to 12
Type
Unified school district
Counties
Sangamon County95% of the district’s landChristian County5% of the district’s land
Land area
64.9 sq mi (168 km²)
Median household income
$115,380 ± $6,765
Median home value
$244,800 ± $12,171
Water area
0.69 sq mi (1.79 km²)
State
Illinois
Census code (GEOID)
1734320
Coordinates (central point)
39.739796, -89.496938
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 Rochester Community Unit School District 3A, largest first

  1. Rochester Township5,538 people
  2. Rochester (village)3,766 people
  3. Cooper Township763 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. Tri-City Community Unit School District 17.7 mi northeast
  2. Riverton Community Unit School District 148.1 mi northwest
  3. Edinburg Community Unit School District 48.4 mi southeast
  4. Springfield School District 1869.3 mi northwest
  5. Ball-Chatham Community Unit School District 59.8 mi southwest
  6. Taylorville Community Unit School District 316 mi southeast

These share a boundary with Rochester Community Unit School District 3A. 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 Rochester Community Unit School District 3A 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.