Summary:
Signature School Inc is the only high school in the Signature School Inc district, serving grades 9–12 in Evansville, Indiana, with 384 students.
This school is one of the top-performing high schools in Indiana. It ranks 2nd out of 374 schools in the state summary, placing it in the 99th percentile with 5 stars, and it has held the 2nd spot for three consecutive reported years: 2 out of 432 in 2023–2024, 2 out of 429 in 2024–2025, and 2 out of 415 in 2025–2026, each at the 100th percentile with 5 stars. Its graduation rate is 100.0% in 2024–2025, compared with Indiana's 89.7%, and chronic absenteeism is 7.9%, less than half the state's 16.7%. Test proficiency far exceeds state averages wherever comparisons are available: SAT Evidence-based Reading and Writing was 95.6% in 2025–2026 versus the state's 51.9%, and 96.51% in 2024–2025 versus 54.5%; SAT Mathematics was 90.11% versus 25.6%, and 84.88% versus 25.4% — roughly 3.3x to 3.5x the state rate. Biology ILEARN End of Course proficiency was 98.99% in 2025–2026 and 96.91% in 2024–2025, the latter 51.31 percentage points above the state's 45.6%.
Math improved year over year, rising 5.23 percentage points, though it remains the school's lowest reported proficiency area, still far above the state. For context, 10.68% of students were eligible for free/reduced lunch in 2024–2025, indicating a relatively low-poverty population — relevant when interpreting outcomes, though the data cannot establish causation. Per-student spending was $10,641 in 2023–2024 and the student-teacher ratio was 14.2 in 2024–2025, but without state or peer benchmarks these figures can be described only, not ranked.
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