Summary:
There are two high schools serving grades 9–12 in Clarksville Community School Corp in Indiana: Clarksville Senior High School, with 412 students, and Indiana Gateway Alternative School, with 365 students—777 students combined. The district itself ranks 305th of 374 districts statewide, in the 18th percentile with 1 star.
Clarksville Senior High School is the stronger performer of the two. Its graduation rate is 95.5%, above the district's 68.6% and the state's 89.7%, and its chronic absenteeism of 27.4% is far lower than Gateway's 66.8%, though still above the state's 16.7%. It has a lower student-teacher ratio (13.1 vs. 17.8) and higher per-student spending ($11,180 vs. $7,817). SAT Reading/Writing proficiency rose from 36.96% to 48.48%, just below the state's 51.9%, while SAT Math rose from 13.04% to 17.17% but remains below the state's 25.6%. Biology proficiency fell sharply, from 32.52% to 18.18%, dropping below the district. The school ranks 284th of 415 in 2025–26, in the 32nd percentile with 2 stars.
Indiana Gateway Alternative School has the most challenging metrics in this dataset: a rank of 411th of 415, 1st percentile, and 0 stars for three straight years. Its graduation rate is 53.3%, chronic absenteeism is 66.8%, and SAT Math proficiency is 0% in 2025–26, down from 0.75% in 2024–25, with SAT Reading/Writing falling from 16.42% to 8.86%. As an alternative school, it may serve students with different needs and circumstances, but the data show a very high-need profile. Notably, both schools have nearly identical free/reduced lunch rates—46.36% and 47.12%—despite very different outcomes.
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