Best High Schools in Zip Code 06492

Zip code 06492, located in Wallingford, CT, is served by two public high schools — Lyman Hall High School and Mark T. Sheehan High School — both part of the Wallingford School District and serving grades 9 through 12. Together, the two schools enroll roughly 1,600 students, with Lyman Hall being the larger of the two at 936 students compared to Sheehan's 673. Both schools maintain favorable student-teacher ratios of 10.4 and 11.0, respectively, and both graduate students at rates above the state average of 91.2%.

Lyman Hall High School stands out as the stronger academic performer. It earned a 3-star rating and ranked 49th out of 133 Connecticut high schools in 2025-2026. In Science, Lyman Hall posted 65% proficiency in 2025-2026 and 63.4% in 2024-2025, both well above state averages. It is also the only school in the zip code with reported ELA and Math proficiency data. Mark T. Sheehan High School, meanwhile, is the attendance and graduation standout, with just 9.0% chronic absenteeism compared to Lyman Hall's 17.0%, and a graduation rate of 93.9% that slightly edges out Lyman Hall's 93.5%. However, Sheehan's Science proficiency lags, particularly in 2024-2025 when only 45.9% were proficient versus the district's 55.5%.

Several insights stand out. First, attendance does not predict test performance here: Sheehan has much better attendance but Lyman Hall posts higher test scores. Second, both schools outrank their district overall — the Wallingford School District ranks 96th out of 153 districts, while Lyman Hall sits in the 63rd percentile and Sheehan in the 53rd percentile statewide. Third, both schools graduate students at solid rates above state averages. Finally, Sheehan spends more per pupil ($19,525 vs. $18,796 at Lyman Hall), yet Lyman Hall generally shows stronger academic results. Data gaps remain: Sheehan does not report ELA or Math proficiency, and its most recent ranking is from 2023-2024, so direct comparisons are limited.