October 20, 2026 — Hillgrove High School’s Class of 2026 has another achievement to celebrate. Students earned ACT scores that exceeded state and national averages. The school’s average ACT composite score also increased from 21.5 in 2025 to 21.6 in 2026.
Hillgrove students earned an average ACT composite score of 21.6 out of 36 possible points, exceeding the Georgia average by 0.7 points and the national average by 2.4 points.
Their performance contributed to the Cobb Schools districtwide average composite score of 23.0.
The school's success follows another strong performance on the SAT, with Hillgrove students also soaring past state and national averages.
The Hawks' success extends beyond test scores, with the school's graduation rate rising to 96.1%, helping Cobb Schools achieve a record-breaking districtwide rate of 90.9%.
Together, these achievements reflect the commitment of Hillgrove and Cobb Schools to preparing students for success in the classroom and beyond.
