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For the 2025-26 school year, there are 4 public high schools serving 3,065 students in Lincoln County, SD.

The top ranked public high schools in Lincoln County, SD are Lennox High School - 01, Harrisburg High School - 01 and Tea Area High School - 03. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Lincoln County, SD public high schools have an average math proficiency score of 45% (versus the South Dakota public high school average of 40%), and reading proficiency score of 62% (versus the 63% statewide average). High schools in Lincoln County have an average ranking of 8/10, which is in the top 30% of South Dakota public high schools.

Lincoln County, SD public high school have a Graduation Rate of 91%, which is more than the South Dakota average of 82%.

The school with highest graduation rate is Tea Area High School - 03, with ≥95% graduation rate. Read more about public school graduation rate statistics in South Dakota or national school graduation rate statistics.

Minority enrollment is 13% of the student body (majority Hispanic and Black), which is less than the South Dakota public high school average of 35% (majority American Indian).