Thomas Jefferson Elem Sch

Thomas Jefferson Elem Sch is one of the sprawling primary schools in Joliet, Illinois, part of Plainfield SD 202, with 646 students on its rolls from grades K through 5. That puts it 70% above the typical public school in Illinois, which averages around 381 students.

Across the 30 schools in Plainfield SD 202 (24,556 students total), Thomas Jefferson Elem Sch accounts for its share of the district's footprint.

On demographics, Thomas Jefferson Elem Sch records that the largest single group is White at 39%, but no single group is in the majority. Other groups include 28% Hispanic, 19% Black, 7% Asian, 6% multiracial. The wider county runs roughly 65% White, putting the school's mix noticeably less White than the area baseline.

Looking at school resources, On paper, Thomas Jefferson Elem Sch has 50 full-time-equivalent teachers, translating to a class-load average of around 13.0:1. That figure is tighter than the state norm's 13.9:1 average. An estimated 38% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

Adjusting for the school's free-and-reduced-lunch share, Thomas Jefferson Elem Sch performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 49.5%, the actual is 41.5%, a residual of -8.1 points.

Around the school, Kendall County reports that median household income runs about $111,601, about 37% of the adult population holds a bachelor's degree or above, and roughly 5% of residents live below the federal poverty line. Thomas Jefferson Elem Sch is one of 50 public schools in Kendall County (combined enrollment of about 29,773 students).

The closest other public school is Aux Sable Middle Sch, roughly 0.1 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Thomas Jefferson Elem Sch at 8th of 9; the average score across the group is 43.3%.

Geographically, the school is in a commuter-belt area.

Five-year trend. Thomas Jefferson Elem Sch's enrollment has climbed 3% since 2018, when it stood at 629 (now 646). Over the same period, the White share declined from 57% to 39%. Class-load math has fell: from 14.3:1 in 2018 to 13.0:1 in 2025.

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