Timber Lake High School - 01
Timber Lake, SD · High School · Grades 9-12
Timber Lake High School - 01 is a high school in Timber Lake, SD with 113 students enrolled and a 62% proficiency rate. Part of Timber Lake School District 20-3. NCES data from the U.S. Department of Education.
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About This School
Timber Lake High School - 01 is a high school located in Timber Lake, South Dakota. The school serves 113 students in grades 9-12. The student-to-teacher ratio is 11.3:1.
According to EDFacts assessment data, 62% of students meet grade-level proficiency standards in combined math and reading. The school reports a 77% graduation rate.
31% of students qualify for free or reduced-price lunch.
Timber Lake High School - 01 is part of the Timber Lake School District 20-3 in South Dakota.
How This School Compares
Timber Lake High School - 01 has 113 students enrolled, making it smaller than the average school in Timber Lake School District 20-3 (121 students). Its 62% proficiency rate is 3 percentage points above the district average of 59%. Compared to the South Dakota state average of 56%, the school performs 6 points higher. With a 11.3:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Timber Lake High School - 01 has 113 students enrolled in grades 9-12. The student-to-teacher ratio is 11.3:1.
According to EDFacts data, 62% of students at Timber Lake High School - 01 meet grade-level proficiency standards in combined math and reading assessments.
Timber Lake High School - 01 has a 77% graduation rate, measuring the percentage of students who graduate within four years.
Timber Lake High School - 01 is part of the Timber Lake School District 20-3 in Timber Lake, South Dakota. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.