Best High Schools in Zip Code 06437

ZIP code 06437 is home to one high school, Guilford High School, which serves grades 9–12 in the coastal town of Guilford, Connecticut, with an enrollment of about 1,008 students. As the only high school in the area, Guilford High School stands out for its consistently strong performance, ranking in the top 20% of Connecticut high schools for three straight years, including a 12th-place finish in 2024–2025. Its graduation rate is 96.7%, well above the state average of 91.2%, and the school outperforms state proficiency averages by wide margins in every subject. In 2025–2026, 80.5% of students were proficient in English language arts, 53.5% in math, and 67.5% in science, compared to state averages of 55.3%, 31.3%, and 50.5%, respectively.

Guilford High School also benefits from favorable resources: a student-teacher ratio of 11.8 to 1, per-student spending of $18,213, and a relatively low free/reduced lunch rate of 14.58%, indicating a generally affluent student population. Chronic absenteeism stands at 13.2%, which is lower than the state average of 16.4% but notably higher than the Guilford School District average of 8.9%. This suggests absenteeism is more concentrated at the high school level than in the district’s elementary or middle schools. While test scores declined slightly compared to the prior year—ELA fell 3.5 points, math 3.8 points, and science 5.6 points—the state also saw lower proficiency rates, so the school maintained its large academic advantage.

Math remains the relative weak spot, with a 27-point gap between math and ELA proficiency, a pattern seen across Connecticut but still an area for improvement. Meanwhile, the district itself ranks 54th out of 153 districts in the state, yet Guilford High School has never fallen below the 84th percentile in its own rankings over the last three years. This tells parents that the high school is clearly the strongest part of the district, likely raising the district’s overall profile. Despite a dip from its peak ranking in 2024–2025, Guilford High School remains a stable, high-performing school with excellent graduation rates, strong academic outcomes, and ample resources—making it a very solid choice for families in the area.