Best High Schools in Zip Code 47355

Zip code 47355 contains one high school—Randolph Southern Junior-Senior High School in Lynn, Indiana—serving grades 7–12 with 210 students as part of Randolph Southern School Corp. The district is ranked 138th of 374 Indiana districts, in the 63rd percentile with a 3-star rating. The school’s latest rank is 175th of 415, in the 58th percentile with 3 stars. That follows a major improvement: 313th of 432, 28th percentile, 1 star in 2023–2024; 173rd of 429, 60th percentile, 3 stars in 2024–2025; and 175th of 415, 58th percentile, 3 stars in 2025–2026.

For parents, the clearest strengths are graduation and science. The school reports a 100% graduation rate in 2024–2025, compared with Indiana’s 89.7%. Chronic absenteeism is 13.6%, better than the state’s 16.7%, though higher than the district’s 10.6%. Biology End-of-Course proficiency was 55.56% in 2024–2025, above the state’s 45.6%, and rose to 72.41% in 2025–2026. Seventh-grade math was also a bright spot at 45.83% in 2025–2026, above the state’s 35.9%. The school serves a majority economically disadvantaged population—free/reduced lunch was 57.14% in 2024–2025—and spends $13,155 per student with a 13.1:1 student-teacher ratio.

Math is the biggest academic concern, especially in later grades. All-grade ILEARN Math was 29.41% in 2025–2026, below the district’s 45.64%. Eighth-grade math was 20.45% versus the state’s 34.2%, and SAT Math for 11th graders was 12.82% versus the state’s 25.6%, down from 18.75% in 2024–2025. ELA is mixed: all-grade ILEARN ELA improved from 25% to 32.35%, but it remains below the district’s 40.51%; seventh-grade ELA was 37.5% versus the state’s 41.7%, while eighth-grade ELA was 29.55% versus the state’s 44%. SAT ERW was 46.15% versus the state’s 51.9%. Overall, this school has improved its statewide standing and has strengths in graduation, attendance relative to the state, biology, and seventh-grade math, but it faces clear gaps in eighth-grade math, SAT Math, and ELA.