Summary:
Illini Bluffs CUSD 327 has three schools serving prekindergarten through grade 12: an elementary school with 425 students, a middle school with 181, and a high school with 249. The overall picture is favorable compared with Illinois: all-grades ELA and math results at the elementary and middle schools are above state rates, and the high school is above the state in every reported grade-and-subject comparison. The clearest area to watch is elementary math, where third- and fifth-grade results fall just below state levels.
Illini Bluffs Middle School stands out for its latest all-grades results: 76% proficient in ELA and 46% in math, compared with 63% and 44% at Illini Bluffs Elementary School. The elementary school’s strongest results are in fifth-grade ELA and science, at 82% and 71%, respectively—28 and 23 percentage points above state rates. Illini Bluffs High School is especially strong in math, exceeding state results by 22 percentage points in grade 9, 21 in grade 10, and 10 in grade 11. SchoolDigger’s 2025–2026 rankings also place the high school highest, at the 83rd percentile, followed by the middle school at the 75th and the elementary school at the 58th.
Recent progress is strongest at the middle school: its all-grades results rose 10 percentage points in ELA and 6 in math from 2024–2025 to 2025–2026. Elementary results were nearly flat, with ELA down less than a point and math down 1 point; at the high school, grade 10 improved substantially, while grade 11 ELA fell 4 points. SchoolDigger rankings moved from 74th to 75th percentile for the middle school and from 69th to 58th for the elementary school over the last two reported years. For context, 2024–2025 student-teacher ratios were 13.9 at the elementary school, 14.5 at the middle school, and 10.7 at the high school. The 2024–2025 free/reduced lunch eligible shares were 31%, 30%, and 24%, respectively; these figures describe student populations, not causes of results.
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