Summary:
ZIP code 83427 is home to one elementary school, Iona Elementary School, a public PK–6 school in Iona, ID, serving 661 students as part of the Bonneville Joint District. Because this is the only elementary school in the ZIP code, the analysis below benchmarks it against its district and the state of Idaho rather than comparing it to neighboring schools.
Iona Elementary School stands out as a high-performing school with a current 2025–2026 state rank of 98 out of 346 Idaho elementary schools, placing it in the 72nd percentile with a 4-star rating. That is a major improvement from just two years prior, when the school sat in the 48th percentile with 2 stars. In the most recent testing year, the school posted strong all-grade proficiency results of 52.3% in math and 65.3% in English Language Arts, beating the state by 9.2 and 11.3 percentage points, respectively. It also outperforms its district in both subjects, and its 5th-grade science proficiency of 54.0% is 10 points above the state average.
The strongest area of the school is 5th grade, where math proficiency (65.0%) exceeds the state by 22.8 points and ELA proficiency (76.0%) exceeds the state by 20.8 points. The clearest area for attention is 6th-grade math, where the school's 44.8% proficiency rate, while slightly above the state, trails the district average of 50.5%. Supporting the school's academic success, chronic absenteeism sits at 11.8%, lower than both the district (13.4%) and state (13.8%) rates. Notably, the school achieves these results while serving a student body where about 33% qualify for free or reduced-price lunch, and with a relatively high student-to-teacher ratio of 23.6. Overall, Iona Elementary School is a rising, above-average school that is delivering strong outcomes for its community.
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