Best Public Schools in Zip Code 83236

Zip code 83236 serves the community of Firth, Idaho, through three public schools in the Firth District (rated 4 stars, 23rd out of 101 Idaho districts)—A W Johnson Elementary School (PK–4), Firth Middle School (5–8), and Firth High School (9–12)—with a combined enrollment of 808 students.

A W Johnson Elementary School is the clear standout, ranking 108th out of 346 Idaho elementary schools (69th percentile, 3 stars) with all-grades math proficiency at 52.6% and ELA at 60.8%, both comfortably above state averages. It also made the most dramatic improvement in the zip code, jumping from the 33rd percentile in 2024–2025 to the 69th percentile this year, with ELA proficiency rising 15 points. Firth High School also impresses in math (45.2% vs. 33.1% state) and ELA (69.9% vs. 61.3% state) at the End-of-Course level, ranking 44th out of 122 schools (64th percentile), though its science score (37.1%) falls below the state (41.2%). Firth Middle School ranks 71st out of 174 (59th percentile) with ELA above state, but math (41.8%) and science (42.1%) lag slightly.

All three schools improved their percentile rankings year over year, suggesting strong district-wide momentum. Chronic absenteeism is remarkably low across the board—3.3% at the high school, 4.0% at the elementary, and 7.1% at the middle school, versus a 13.8% state average. One area to watch is 7th-grade math at the middle school, where proficiency drops from 50.9% in 6th grade to 36.5% before recovering to 39.3% in 8th grade. Spending varies significantly by level—$8,587 per student at the high school versus $5,642 at the elementary—yet the lower-spending elementary achieves the highest ranking. The high school's graduation rate (82.5%) exactly matches the state average, and the district's 4-star rating reflects a cohesive, improving system that parents should find encouraging.