South Wilmington Grade School

South Wilmington Grade School, a tiny elementary school in South Wilmington, Illinois, overseen by South Wilmington CCSD 74, enrolls 73 students, covering grades K through 8. That puts it 81% smaller than the typical public school in Illinois, which averages around 381 students.

South Wilmington Grade School is a school of South Wilmington CCSD 74, the district that handles curriculum, staffing, and budget for the campus.

Looking at the student body, South Wilmington Grade School lists that the student body is overwhelmingly White (100%). By comparison, Grundy County as a whole is about 86% White, so the school skews visibly more White than its surroundings.

On the income-and-resources front, The school currently runs with 8 full-time-equivalent teachers, for a student-teacher ratio near 9.1:1. The state averages around 13.9:1, so this campus is tighter than the state norm typical. Roughly 29% of students at South Wilmington Grade School qualify for free or reduced-price lunch, often used as a Title I proxy.

Adjusting for the school's free-and-reduced-lunch share, South Wilmington Grade School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 54.9%, the actual is 51.9%, a residual of -3.0 points.

Across the wider county, census data for Grundy County shows median household earnings sit near $92,235, about 24% of the adult population holds a bachelor's degree or above, and roughly 5% of residents live below the federal poverty line. Across Grundy County's 28 public schools (combined enrollment of about 12,070 students), South Wilmington Grade School is one campus in the mix.

The closest other public school is Gardner-South Wilmington Twp H S, roughly 1.5 miles away. Within five miles, there are 3 other public schools. Ranking that nearby cluster on reported proficiency puts South Wilmington Grade School at 3rd of 8; the average score across the group is 45.4%.

Geographically, the school is in a low-density area.

Five-year trend. South Wilmington Grade School's enrollment has decreased 16% since 2018, when it stood at 87 (now 73). Class-load math has tightened: from 10.9:1 in 2018 to 9.1:1 in 2025.

On allk12, members of the South Wilmington Grade School community share and discuss science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.