How Grundy County compares
Together they enroll 13,623 students across 25 schools. The largest is Minooka Community Consolidated School District 201 with 4,499 students. Districts here average 6.4/10, above the Illinois average of 5.6/10. Ratings range from 1/10 to 10/10. 1 of the 13 districts has no state assessment data and is shown as Not rated.
School Districts in Grundy County, Illinois
Grundy County has 13 public school districts covering 9 zip codes. The top-rated district in Grundy County is Coal City Community Unit School District 1 (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (IAR 2023–24), ranked against all districts in Illinois. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.
Frequently Asked Questions
How many school districts are in Grundy County, IL?
13 school districts serve zip codes in Grundy County, IL. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Grundy County, IL?
Of the districts serving Grundy County, Coal City Community Unit School District 1 has the highest rating on this site at 10/10. That places it in the 90th percentile among Illinois school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Illinois reading and math assessments, ranked against other districts in Illinois and converted to a 1–10 scale. Percentiles compare districts within Illinois only, never across state lines.