Summary:
Zip code 61254 has three elementary schools in Geneseo CUSD 228: two serve kindergarten through grade five, while Northside Elementary School serves prekindergarten through grade five. In 2025–2026, the schools’ averages were 61% in all-grades English language arts (ELA), 43% in math and 52% in fifth-grade science, each above the corresponding state result by about 5, 3 and 5 percentage points. The main takeaway is that performance depends strongly on the subject: science has the widest gap between schools, while math is much more closely grouped.
Millikin Elementary School leads in fifth-grade science at 67% and narrowly tops all-grades math at 44.1%; Northside leads ELA at 68%. The largest difference is in science: Millikin is 32 percentage points above Southwest Elementary School, which scored 35%. Southwest is also lowest in all-grades ELA at 51%, 17 points below Northside. Math is a closer contest: Millikin’s 44.1% and Southwest’s 44.0% are nearly tied, while Northside is at 39%. SchoolDigger ranks Millikin highest among the three, at the 60th percentile, followed by Northside at the 56th and Southwest at the 41st.
Recent changes show why families may want to compare subjects, not just overall results. From 2024–2025 to 2025–2026, ELA rose 8 points at Millikin and 7 at Northside but fell 5 at Southwest. Math was essentially unchanged at Millikin, while it fell 10 points at Southwest and 18 at Northside; the schools’ average math advantage over the state narrowed from 13 points to 3. Fifth-grade science rose at Millikin and Northside but dropped 16 points at Southwest. As context, free/reduced lunch eligible shares in school year 2024–2025 were 30% at Millikin, 38% at Southwest and 37% at Northside; student–teacher ratios were 13.6 at Southwest and 15.7 at Northside. These figures describe differences, not what explains them. Enrollment is similar across the schools, and Northside’s grade range differs from the other two.
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