Summary:
Zip code 57656 has three schools in Timber Lake School District 20-3, serving students from prekindergarten through grade 12: Timber Lake Elementary - 02 (PK–5), Timber Lake Middle School - 03 (6–8), and Timber Lake High School - 01 (9–12). The clearest shared strength is the elementary and middle schools’ math performance: their average all-grades result is 73%, compared with 44% statewide, an average advantage of 29 percentage points.
Timber Lake Elementary - 02 stands out in math, with 77% proficient across grades compared with 70% at the middle school; its grade 5 math result is 37 points above the state. Timber Lake Middle School - 03 has the highest all-grades ELA result: 68.1%, just above the elementary school’s 67.6%. The high school’s current ACT results are strongest in ELA, 12 points above the state, and science, 7 points above; its math result is only 1 point higher. Within the middle school, grade 8 ELA is a relative weak spot, just 1 point above the state, while grades 6 and 7 are 23 and 24 points above.
Elementary and middle results improved from 2024–2025 to 2025–2026: ELA rose 5 points at the elementary school and 4 at the middle school, while math rose 1 and 11 points, respectively. SchoolDigger ranks the middle school 7th of 151 statewide (95th percentile, 5 stars), the elementary school 13th of 203 (94th percentile, 5 stars), and the high school 39th of 130 (70th percentile, 4 stars); the high school’s percentile ranking fell 5 points from the prior year, while the elementary and middle rankings rose 5 and 12. The schools report similar free/reduced lunch eligible shares for 2024–2025: 39% at the elementary school, 37% at the middle school, and 37% at the high school; student–teacher ratios range from 8.3 at the middle school to 12.8 at the high school. The high school changed from Smarter Balanced to ACT, so its current results do not show a comparable year-over-year test trend.
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