Best Elementary Schools in Zip Code 83813

Elementary schools in zip code 83813, serving the Cocolalla, Idaho area, consist of a single school: Southside Elementary School, which serves grades PK–6 with 170 students as part of the Lake Pend Oreille School District. Southside is a strong, consistently 4-star school that outperforms Idaho state averages in math and science, with particularly excellent results in sixth-grade math and fifth-grade science.

Southside’s math proficiency for all grades is 62.9%, compared to 54.1% in the district and 43.1% statewide. The sixth-grade math proficiency of 72.4% is nearly 30 points above the state average, while fifth-grade science proficiency of 66.7% tops the state by over 22 points. ELA proficiency across all grades is 62.9%, slightly below the district’s 64.0% but well above the state’s 54.0%. Upper-grade ELA is solid, with fifth-grade at 70.8% and sixth-grade at 65.5%. However, third-grade ELA is a clear weak point: just 50.0% of students are proficient, below the district’s 54.6% and barely above the state’s 48.5%. This suggests an opportunity for earlier reading intervention, especially since third grade is a critical literacy benchmark.

With 42.94% of students eligible for free/reduced lunch, Southside serves a relatively high-poverty population yet still achieves well above state averages—an encouraging sign of effective teaching and support. The school’s state ranking has improved overall, from 82nd (73rd percentile) in 2023–2024 to 45th (87th percentile) in 2024–2025, then settling at 61st (82nd percentile) in 2025–2026. Chronic absenteeism data are limited, but the most recent school-level figure of 8.0% is relatively low, and the district’s current rate of 2.1% is far below the state’s 13.8%. With a student-teacher ratio of 18.1 and only 170 students, Southside offers a small, personalized environment. Its main area for growth is early literacy, while math and science remain standout strengths for this Cocolalla community school.