Summary:
ZIP code 06422 is served by a single high school: Coginchaug Regional High School, a public school in Durham, Connecticut that serves grades 9–12 and enrolls 356 students. As the only high school in the area, this school stands out on its own, earning a 4-star rating and ranking 23rd out of 133 Connecticut high schools in the 2025–2026 school year, placing it in the 83rd percentile. This strong performance is not a one-time occurrence; the school has consistently ranked in the top quartile and received 4 stars in each of the past several reporting cycles, including a 19th-place finish in 2021–2022.
Academically, Coginchaug Regional High School dramatically outperforms state averages. On the 11th-grade SAT, 77.5% of students are proficient in ELA compared to 55.3% statewide, and 74.2% are proficient in science versus 50.5% statewide. The school also posts a graduation rate of 92.5%, slightly above the state’s 91.2%, and chronic absenteeism is just 8.7%—about half the statewide rate of 16.4%. The school operates with a very low student-teacher ratio of 8.8:1 and benefits from high per-student spending of $21,182, helping to create a supportive, personalized learning environment. Only 15.73% of students qualify for free/reduced lunch, reflecting a low economic disadvantage rate.
Interestingly, Coginchaug Regional High School far outranks its own district, Regional School District 13, which sits near the middle of Connecticut districts (77th of 153, 3 stars). This suggests the high school is a standout component of the district, likely outperforming other schools within it. For parents considering this area, the combination of excellent test scores, strong attendance, above-average graduation rates, and a small, well-funded school makes Coginchaug Regional High School a highly attractive option.
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