Summary:
ZIP code 62501 has one listed high school, Argenta-Oreana High School, serving grades 9–12 and enrolling 268 students. In 2025–26, its graduation rate was 81%, compared with 90% statewide, and chronic absenteeism was 27%, versus 24% statewide. The clearest academic concern is mathematics: the school trailed Illinois in all three tested grades, with an average of 26% proficient compared with 39% statewide, a 14-point gap.
There is no second high school in the ZIP code to compare, but the school’s results show clear differences by subject and grade. ELA was a relative strength: results were at or just above the state level in grades 9, 10, and 11, with the school’s highest result in grade 9 at 62.3%, versus 61.5% statewide. The lowest result was grade 10 math, at 19% compared with 36% statewide, or 17 points lower. Science also varied by grade: grade 9 was 49%, 2 points above the state, while grade 10 was 34%, 15 points below.
Results changed differently across grades and tests: grade 11 ACT proficiency rose by 14 points in ELA, 7 in math, and 14 in science from 2024–25 to 2025–26, while grade 10 PreACT science fell by 18 points and ELA by 8. SchoolDigger ranked the school 352nd of 620 in 2025–26, at the 43rd percentile with 2 stars; that was below its 2024–25 ranking of 344th of 698, at the 51st percentile with 3 stars, but above its 2023–24 percentile of 35. As context, the school’s student-teacher ratio was 12.9 in 2024–25, and 56% of students were free/reduced lunch eligible that year.
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