Best Schools in Groton, Connecticut
8 schools · 4 Elementary · 1 Middle · 3 High
Choosing a school in Groton?
Use this page to compare every school in Groton by level, neighborhood, and district — and find the right fit, not just the top of the list.
Shortlist starter
Start with these real page-level signals, then use the full table and map below.
Marine Science Magnet High School
High · Learn. Ranked from real test data; use the map and table below to check address fit.
Catherine Kolnaski Magnet School
Elementary · Groton School District. Ranked from real test data; use the map and table below to check address fit.
Groton Middle School
Middle · Groton School District. Ranked from real test data; use the map and table below to check address fit.
The short answer
The top-rated schools in Groton for 2026 are Marine Science Magnet High School (8.5/10), Catherine Kolnaski Magnet School (8.2/10), and Groton Middle School (7.9/10), based on MySchoolScout's analysis of real test data across 8 rated schools. Ratings blend student growth, poverty-adjusted academic achievement, and school environment (plus college readiness for high schools), with equity shown as context, not scored; schools with estimated (proxy) scores are excluded from this ranking.
Schools
8
7 public · 1 private
Avg Score
7.4
out of 10
Median Home
$275,500
home value · ACS
Districts
3
serving the city
Schools
8
7 public · 1 private
Avg Score
7.4
out of 10
Median Home
$275,500
home value · ACS
Districts
3
serving the city
Top-Rated Schools in Groton
Ranked by MySchoolScout composite using only schools with real test data (8 of 8). "Value" = points above what student poverty predicts. Estimated (proxy) scores are excluded.
| # | School | Rating |
|---|---|---|
| 1 | Marine Science Magnet High School | 8.5 / 10 |
| 2 | Catherine Kolnaski Magnet School | 8.2 / 10 |
| 3 | Groton Middle School | 7.9 / 10 |
| 4 | Robert E. Fitch High School | 7.6 / 10 |
| 5 | Thames River Magnet School | 7.6 / 10 |
| 6 | Charles Barnum Magnet School | 6.5 / 10 |
| 7 | Ella T. Grasso Technical High School | 6.4 / 10 |
| 8 | Sacred Heart School | 6.4 / 10 |
See every school — including those with estimated data — in the full directory below. How we rate schools.
Family Snapshot
At a glance- Avg school rating
- 7.4/10
- Median household income
- $77,768
- Median home value
- $275,500
- Bachelor's degree or higher
- 38%
- Avg commute
- 18 min
- Owner-occupied homes
- 42%
63% of schools rated 7+
Census ACS, ZIPs in this city
Owner-occupied units
Adults 25+
Workers age 16+
Of occupied housing units
How Groton compares
Connecticut rank
#34 of 130
cities by avg. school score
Vs. state average
+1.0
above Connecticut avg (6.3)
Median household income
$78k
71% of Connecticut median
Schools in this city
8
About Schools in Groton, Connecticut
Groton, Connecticut is home to 8 schools, including 7 public schools and 1 private school. The city's schools span 4 elementary schools, 1 middle school, and 3 high schools.
With an average rating of 7.4 out of 10, schools in Groton perform strongly on the MySchoolScout composite scale, which blends student growth, poverty-adjusted academic achievement, and school environment — plus college readiness for high schools.
The highest-performing school in Groton is Marine Science Magnet High School with a composite score of 8.5/10, demonstrating strong academic outcomes and school quality metrics.
Groton is served by 3 school districts: Connecticut Technical Education and Career System, Groton School District, Learn. These districts collectively serve 16,689 students.
Groton's community shows 38% bachelor's degree attainment with a median household income of $77,768. The poverty rate in the area is 12.2%.
Browse the schools below to compare ratings, test scores, enrollment, and other key metrics. Use the filters to focus on specific school levels or types that match your family's needs.
Elementary Schools
4 schools| # | School | Rating | ||
|---|---|---|---|---|
| 1 | 369 students · Kindergarten–5th | 8.2 | ||
| 2 | 531 students · Pre-K–5th | 7.6 | ||
| 3 | 332 students · Pre-K–5th | 6.5 | ||
| Private Schools 1 school Private and public school ratings use different data sources and scoring models. Scores are not directly comparable across school types. | ||||
| 1 | Sacred Heart School
Private
112 students · Pre-K–8th | 6.4 | ||
Middle Schools
1 school| # | School | Rating |
|---|---|---|
| 1 | 898 students · 6th–8th | 7.9 |
High Schools
3 schools| # | School | Rating |
|---|---|---|
| 1 | 271 students · 9th–12th | 8.5 |
| 2 | 1,019 students · 9th–12th | 7.6 |
| 3 | 674 students · 9th–12th | 6.4 |
Schools in Groton
Groton, Connecticut · 8 schools
Community Demographics
Census ACS 2022 5-Year Estimates across 1 ZIP code
Median Income
$77,768
Median Home Value
$275,500
Median Rent
$1,492/mo
Population
29,833
College Educated
38%
Homeownership
42%
Avg Commute
18 min
Poverty Rate
12.2%
Community Profile
Groton has a median household income of $77,768. It is an area where 38% of adults hold a bachelor's degree or higher. The median home value in the area is $275,500, with a median rent of $1,492/month. The area has a poverty rate of 12.2%. Residents enjoy a short average commute of 18 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Schools by Level
- State
- Connecticut
- Elementary
- 4
- Middle
- 1
- High
- 3
Resources
Nearby Cities
Other Major Cities in Connecticut
Top metros statewide by school count.
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateFrequently Asked Questions
Common questions about schools in Groton, Connecticut
How many schools are in Groton, Connecticut?
Groton has 8 schools, including 7 public and 1 private schools spanning elementary, middle, and high school levels.
What is the average school rating in Groton, Connecticut?
The average MySchoolScout composite score for schools in Groton is 7.4 out of 10, built from student growth, poverty-adjusted academic achievement, and school environment — plus college readiness for high schools.
What is the top-ranked school in Groton, Connecticut?
The top-ranked school in Groton on MySchoolScout is Marine Science Magnet High School with a composite score of 8.5/10.
What is the best elementary school in Groton, Connecticut?
The top-ranked elementary school in Groton on MySchoolScout is Catherine Kolnaski Magnet School with a composite score of 8.2/10.
What is the best middle school in Groton, Connecticut?
The top-ranked middle school in Groton on MySchoolScout is Groton Middle School with a composite score of 7.9/10.
What is the best high school in Groton, Connecticut?
The top-ranked high school in Groton on MySchoolScout is Marine Science Magnet High School with a composite score of 8.5/10.
How many school districts serve Groton, Connecticut?
Groton is served by 3 school districts: Connecticut Technical Education and Career System, Groton School District, Learn.
What is the education level in Groton, Connecticut?
According to Census data, 38% of adults in Groton have earned a bachelor's degree or higher.
What is the median income in Groton, Connecticut?
The median household income in Groton is approximately $77,768 according to Census ACS 2022 estimates.
Are there private schools in Groton, Connecticut?
Yes, Groton has 1 private school alongside 7 public schools. The top-rated private school is Sacred Heart School with a score of 6.4/10.
What is the student-teacher ratio in Groton, Connecticut?
The average student-teacher ratio across schools in Groton is 11.0:1. This ratio varies by school, so families should check individual school profiles for specific classroom sizes.
How does MySchoolScout rate schools in Groton, Connecticut?
MySchoolScout rates schools using publicly available data from the NCES Common Core of Data and state education departments. Each school receives a 1-10 composite score built from Student Growth, Poverty-Adjusted Academic Achievement, and School Environment — plus College Readiness for high schools. Weights vary by school level, and equity data is shown for context but not scored.
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Data from NCES Common Core of Data, Connecticut Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.