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Nonnewaug High School

Public Grades 9-12
25th
SchoolDigger Rank ?
of 135 Connecticut High Schools
Better than 81% of Connecticut high schools
Summary

Nonnewaug High School is a public high school in Woodbury, CT, serving 647 students in grades 9–12 as part of Regional School District 14. The school has earned a 4-star rating and ranks 25th out of 133 high schools statewide, placing it in the 81st percentile. Nonnewaug's 11th graders score well above state averages in every subject: 69.9% proficient in SAT English Language Arts (vs. 55.3% statewide), 52.2% proficient in SAT Math (vs. 31.3% statewide), and 77% proficient in NGSS Science (vs. 50.5% statewide). The science result is particularly striking — roughly 26 points above the state average and far ahead of every nearby school reporting the same metric.

Nonnewaug also posts consistently strong graduation and attendance numbers. Graduation rates have held steady between 96% and 97% over the past five years, well above the Connecticut average. Chronic absenteeism sits at 9.4%, about half the state average of 16.4%, and well below neighboring schools like Shepaug Valley School (17.8%) and Watertown High School (22.0%). With a student-teacher ratio of 10.6-to-1, students learn in a supportive instructional environment.

Among comprehensive high schools in western Connecticut, Nonnewaug is arguably the most balanced high performer. While Shepaug Valley posts slightly higher SAT ELA scores, Nonnewaug holds a clear edge in attendance, suggesting strong student engagement. The school also serves economically disadvantaged students well, with that subgroup ranking in the 86th percentile statewide. Science is a signature subject, with proficiency rising steeply from 46.9% in 2023–24 to 77% in 2025–26. The key question is whether recent gains in math and science represent a sustainable trend — if so, Nonnewaug is well positioned to become a top-tier regional high school.

647
Students ?
10.6
Student/teacher ratio ?
$25,340
Per pupil spending ?
17.8%
Free/reduced lunch eligible (2024-25) ?
 5 Minortown Road
       Woodbury, CT  06798

(203) 263-2186

District: Regional School District 14


Feeder schools for Nonnewaug High School:

Elementary:    Bethlehem Elementary School
    Mitchell Elementary School
Middle:    Woodbury Middle School
Racial breakdown:

White:
75.7%
Hispanic:
19.5%
Two or more races:
2.5%
more
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 Compare Nonnewaug High School to nearby high schools!
At a glance
▲ Ranking trend: Improving — 68th percentile in 2015 → 81st in 2026
Strengths
✓Test scores above the Connecticut average (66% vs 46% meeting standards)
✓Ranks in the top 19% of Connecticut high schools
✓97% graduate in 4 years — above the Connecticut average (91%)
Students meeting standards (2025-2026) ?
This school66%
District avg66%
Connecticut avg46%
25th of 135
Connecticut public high schools ?
Top 19%▲ up 13 pts since 2016
From top 31% (2016) to top 19% (2026)
See the entire ranking list of Connecticut High Schools →
★★★★★
SchoolDigger rating ?
58th of 153Regional School District 14 among Connecticut districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankConnecticut percentileRating
202684.025 of 13581.5%★★★★☆
202572.743 of 14169.5%★★★★☆
202462.056 of 14561.4%★★★☆☆
202372.244 of 14269.0%★★★★☆
202257.859 of 13957.6%★★★☆☆
202163.678 of 20061.0%★★★☆☆
201867.353 of 12156.2%★★★☆☆
201776.740 of 14071.4%★★★★☆
201676.441 of 13268.9%★★★★☆
201568.462 of 19668.4%★★★☆☆
201376.642 of 19378.2%★★★★☆
201274.153 of 18871.8%★★★★☆
201175.643 of 18977.2%★★★★☆
201074.647 of 18674.7%★★★★☆
200975.651 of 17671.0%★★★★☆
200875.843 of 17675.6%★★★★☆
200773.554 of 17669.3%★★★★☆

Female

YearAvg scoreStatewide rankConnecticut percentileRating
202574.833 of 10468.3%★★★★☆
202456.255 of 10246.1%★★☆☆☆
202164.073 of 18961.4%★★★☆☆
201863.341 of 7948.1%★★☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankConnecticut percentileRating
202382.710 of 7085.7%★★★★☆
202170.743 of 15572.3%★★★★☆

Male

YearAvg scoreStatewide rankConnecticut percentileRating
202673.137 of 11567.8%★★★☆☆
202559.056 of 11149.5%★★★☆☆
202438.762 of 10038.0%★★☆☆☆
202156.787 of 18252.2%★★★☆☆
201855.150 of 7835.9%★★☆☆☆

Special Education

YearAvg scoreStatewide rankConnecticut percentileRating
202147.189 of 17549.1%★★★☆☆

White

YearAvg scoreStatewide rankConnecticut percentileRating
202669.033 of 10769.2%★★★★☆
202543.070 of 11639.7%★★☆☆☆
202434.079 of 11631.9%★★☆☆☆
202344.369 of 11640.5%★★☆☆☆
202227.490 of 11723.1%★☆☆☆☆
202141.893 of 15540.0%★★☆☆☆
201942.479 of 11330.1%★★☆☆☆
201840.276 of 10527.6%★☆☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Low Socio Economic Status (2023)86th percentile+17 vs school
White (2026)69th percentile-12 vs school
Female (2025)68th percentile~ school
Male (2026)68th percentile-14 vs school
Special Education (2021)49th percentile-12 vs school
By subject vs Connecticut (2025-2026) ?
Science77%+26 vs state
English Language Arts70%+15 vs state
Math52%+21 vs state

3.0
3 ratings · 2 written reviews
5★1
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What people are saying
by a student
Thursday, March 29, 2012

Open Quote I used to go to this school until I moved away. I can finally say what I think about this school. Nonnewaug is terrible. The students are racist and the overall structure is sloppy and bad. The Internet security system is terrible too... I have easily passed by the security system and never been caught. Drugs are literally everywhere. I have been offered drugs right in front of the school. And I didn't take them. There are fights every year and the school does not know how to deal with it effectively. There was a fight once by my table and all the prinicpal did was yell at the students. I didnt do anuthing wrong but the teachers didnt care. The education is terrible. There are some good teachers but there are too many bad ones. When I went to college, I wasnt prepared with the information required. The electives are very scarce and very limited. The worst school I have been to. Close Quote


by a student
Sunday, April 10, 2011

Open Quote The school is falling apart and there aren't enough teachers. The Agri students are also very racist. Close Quote





Schools Near Nonnewaug High School

Ranking:
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Frequently Asked Questions about Nonnewaug High School

In the 2024-25 school year, 647 students attended Nonnewaug High School.

Nonnewaug High School is fed by the following schools:

Elementary : Bethlehem Elementary School
Elementary : Mitchell Elementary School
Middle : Woodbury Middle School

Students at Nonnewaug High School are 76% White, 19% Hispanic, 2% Two or more races, 1% African American.

Nonnewaug High School ranks 25th of 135 Connecticut high schools. SchoolDigger rates this school 4 stars out of 5.

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Latest Connecticut data All new data »
2020–21 through 2023–24 attendance data & graduation rates (updated)NewNov 2, 2026
2019–20 graduation rates (updated)NewNov 1, 2026
2017–18 through 2025–26 immunization rates (updated)Oct 19, 2026
2024–25 through 2025–26 attendance data & graduation ratesAug 31, 2026


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Connecticut Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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