Summary:
Cassia County Joint District is a rural Idaho school district serving approximately 5,484 students across 16 schools, including eight elementary schools, two junior high/middle schools, five high schools (three of which are combined 7–12 schools), and one alternative/online school.
Standout schools include Oakley Elementary School, which ranks in the 71st percentile with math proficiency at 57.8% versus the state’s 43.1%, and Declo Junior High School, which outperforms Burley Junior High School in every subject (51.5% vs. 35.0% math). Declo Senior High School posts excellent ELA End-of-Course results at 76.5%, and Oakley Junior/Senior High School leads the district in high-school math. On the other hand, Mountain View Elementary, White Pine Elementary, Burley Senior High School, and Cassia Junior/Senior High School are all below state averages, with Cassia Jr/Sr High also showing a chronic absenteeism rate of 43.4%.
The most consistent pattern is that the Declo-area schools outperform the Burley-area schools, and small rural schools like Raft River Elementary School and Raft River Junior/Senior High School often post stronger results than larger ones. Science is a district-wide weakness, with proficiency at elementary, middle, and high school levels all below state averages. Chronic absenteeism clearly tracks with low performance, while Dworshak Elementary School demonstrates that high-poverty schools can succeed—achieving strong math and ELA outcomes despite a 65.4% free/reduced lunch rate. Some data gaps remain, such as missing rankings for several rural schools and an obviously anomalous student–teacher ratio at Mini-Cassia Online Learning Academy.
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