Summary:
ZIP code 66935 has two schools serving different age groups: Belleville East Elementary serves pre-K through grade 5, and Republic County Junior/Senior High School serves grades 6–12. Because their grade spans differ, their schoolwide test results are not direct same-grade comparisons. The clearest takeaway is a sharp split: in 2025–26, the elementary school was above state results in all three subjects, while the high school was below the state in all three.
Belleville East stands out, with all-grades results of 59% in ELA, 57% in math, and 63% in science—about 26, 22, and 26 percentage points higher, respectively, than the high school’s 34%, 35%, and 37%. It also exceeded state results by 13 points in ELA, 16 in math, and 25 in science. Republic County Junior/Senior High was 12 points below the state in ELA, 6 points below in math, and 1 point below in science. Grade-level results offer exceptions: Belleville East’s third-grade math was 74%, 31 points above the state, and the high school’s tenth-grade math was 45%, 9 points above the state.
Results improved broadly at the elementary school from 2024–25 to 2025–26: ELA rose 11 points, math 18, and science 22. The high school’s gains were more selective: math rose 5 points and science 1, while ELA fell 1 point. SchoolDigger ranked Belleville East at the 77th percentile with 4 stars, up 40 percentile points since 2023–24; the high school was at the 62nd percentile with 3 stars, up 16 points. Both schools reported lower chronic absenteeism than the state rate of 18%. Their student–teacher ratios were 11.8 at the elementary school and 10.8 at the high school; free/reduced-lunch rates were 64% and 52%, respectively. These figures add context, but do not explain the difference in test results.
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