📊 Data: NCES CCD 2024–2025·🔄 Updated: September 2026·Editorial standards
🏆 Rankings · State Test Data (IAR 2023–24)

Best School Districts
in Adams County, IL

Adams County has 5 rated public school districts. Ratings are percentile-ranked against every rated district in Illinois, not just this county.

📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (IAR 2023–24), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 5 Rated Districts in Adams County, IL Sorted by rating, then state percentile
County RankDistrictDistrict OfficeRatingState Percentile
#1Community Unit School District 4Mendon7/10  Good64th
#2Liberty Community Unit School District 2Liberty7/10  Good62nd
#3Central CUSD 3Camp Point5/10  Average47th
#4Payson Community Unit School District 1Payson3/10  Below Average28th
#5Quincy School District 172Quincy3/10  Below Average27th

Best School Districts in Adams County, Illinois (2026)

This page lists the 5 public school districts headquartered in Adams County, Illinois that have a SchoolDistrictFinder rating, scored using IAR 2023–24 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in Illinois, which is how the 1–10 rating is set. Ratings are not comparable with districts in other states.

Districts are placed in the county of their NCES directory listing. A district's boundaries can cross county lines, and a home in Adams County may be served by a district headquartered next door — search your address or zip code to confirm.

Frequently Asked Questions
What is the best-rated school district in Adams County, Illinois?
Among the 5 rated districts in Adams County, Illinois, the highest-rated is Community Unit School District 4 (Mendon), rated 7/10 (Good) and in the 64th percentile of Illinois districts on IAR 2023–24 reading and math proficiency.
How are these rankings calculated?
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments (IAR 2023–24), percentile-ranked against all rated districts in Illinois and converted to a 1–10 scale. Full methodology here.