Century Community Unit School District 100, Illinois

Century Community Unit School District 100 is a unified school district in 4 counties, Illinois, for grades Pre-K to 12. About 2,119 people live in it (2020–2024 estimate). It covers 112 sq mi (291 km²) of land.

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Century Community Unit School District 100 in Illinois
Century Community Unit School District 100 and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
2,119 ± 253
Grades
Pre-K to 12
Type
Unified school district
Counties
Pulaski County91% of the district’s landAlexander County4% of the district’s landJohnson County3% of the district’s landMassac County2% of the district’s land
Land area
112 sq mi (291 km²)
Median household income
$63,750 ± $10,609
Median home value
$100,500 ± $18,892
Water area
2.15 sq mi (5.57 km²)
State
Illinois
Census code (GEOID)
1739630
Coordinates (central point)
37.274634, -89.079247

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 Century Community Unit School District 100, largest first

  1. Karnak Precinct658 people
  2. Ullin Precinct534 people
  3. Grand Chain Precinct517 people
  4. Karnak (village)466 people
  5. Ullin (village)419 people
  6. New Grand Chain (village)151 people
  7. Perks Precinct109 people
  8. Wetaug Precinct44 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. Dongola School Unit District 668.3 mi northwest
  2. Meridian Community Unit School District 1019.4 mi southwest
  3. Joppa-Maple Grove Unit District 3812 mi east
  4. Egyptian Community Unit School District 515 mi west
  5. Ballard County School District, Kentucky16 mi south
  6. McCracken County School District, Kentucky25 mi southeast

These share a boundary with Century Community Unit School District 100. 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 Century Community Unit School District 100 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.