Summary:
Zip code 83813 (Cocolalla, Idaho) contains just one school: Southside Elementary School, a public elementary school serving grades PK through 6 with 170 students in the Lake Pend Oreille School District, which ranks 22nd out of 101 districts in Idaho. Because no middle schools or high schools exist in this zip code, families with students in grades 7 through 12 must look outside the area for schooling options, making this elementary school the sole educational anchor for Cocolalla.
As the only school in 83813, Southside Elementary is by definition the standout. It has earned 4 out of 5 stars in each of the last three school years and currently ranks 61st out of 346 Idaho elementary schools, placing it in the 82nd percentile. Its math proficiency rate (62.9%) is nearly 20 percentage points above the state average (43.1%), and its 6th grade math score is especially strong: 72.4% proficient versus 42.5% statewide. Science performance is also exceptional, with 5th graders hitting 66.7% proficiency compared to 44.0% statewide. ELA proficiency (62.9%) is above the state average (54.0%) but trails the district slightly, with 3rd grade ELA at 50.0% as a potential early-literacy area to watch, while 5th grade ELA shines at 70.8%.
Southside serves an economically diverse student body, with 42.94% of students qualifying for free/reduced lunch, yet the school still outperforms the state in every tested subject. The district's chronic absenteeism rate of 2.1% is dramatically lower than the state's 13.8%, supporting a strong learning environment. With a student-teacher ratio of 18.1 to 1 and roughly 9-10 classroom teachers, the school maintains solid achievement. Ranking fluctuations from the 73rd percentile (2023-2024) to the 87th percentile (2024-2025) and then 82nd percentile (2025-2026) show consistent high performance. Southside Elementary offers strong academic outcomes in math, science, and reading, making it a dependable choice for families in this rural zip code.
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