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#703 of 990 schools in CT

Common Ground High School

High School · Common Ground High School District

358 Springside Ave., New Haven, CT 06515

Charter

Enrollment

223

Student-Teacher

8.9:1

Score

5.3

Grades

9th – 12th

Updated 2022-23

How this school compares

In New Haven

#9 of 42

public schools

Connecticut high schools

#143 of 196

Academic growth

9.4 / 10

Exceptional

About Common Ground High School

Common Ground High School is a charter high school located in New Haven, Connecticut, serving students from ninth through twelfth grade. With an enrollment of 223 students and a student-teacher ratio of 8.9:1, the school offers personalized attention to each student. The dedicated faculty of 25 full-time equivalent teachers focuses on fostering a supportive learning environment.

Common Ground High School has a MySchoolScout rating of 5.0 out of 10 and ranks 612th among 996 schools in Connecticut, placing it around the 39th percentile. Academically, the school is currently at 1.9 out of 10 on the Academic Score metric. In ELA/Reading, 33% of students are proficient or above, while in Math, only 7% reach proficiency levels.

Despite these challenges, Common Ground High School emphasizes student development and provides a range of programs to support its diverse learners. The school is situated in a mid-size city, offering a variety of resources and opportunities for students outside the classroom.

What Parents Should Know

While current test scores at Common Ground High School are below average, the school shows strong growth metrics — meaning students are making above-average progress year over year. This upward trajectory can be a positive indicator for families who value a school's ability to help students improve, even if absolute scores haven't caught up yet.

With a student-teacher ratio of 8.9:1, Common Ground High School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

Common Ground High School is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress9.4Exceptional25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data3
Annual Change+0.65 pts/yr
Data Period2019–2022
TrendStable
Academics2.6Needs Improvement25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency5%
Reading/ELA Proficiency24.5%
Overall Proficiency15%
Expected (poverty-adj.)29%
vs. Expected-14.5 pts
Adjusted Percentile9th
College Readiness3.4Fair30%
Graduation rates, AP course participation, and IB availability.
View breakdown
AP Participation10.8%
IB ProgramNo
Resources & Environment6.3Above Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio8.9:1
Per-Pupil Spending$22,220

Common Ground High School — Students at Common Ground High School score 15% proficient, which is below what's typical for similar communities (expected: 29%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

65.5%

Students qualifying for federal meal assistance

Test Scores CT EDFACTS (2021-22)

Math Proficiency 6.7%
School
State
N/A
ELA Proficiency 32.8%
School
State
N/A

Based on 6 test records from CT state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
5%
ELA
24.5%
2021*
Math
10%
ELA
49.5%
2022
Math
5%
ELA
24.5%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 9.4/10.

How Common Ground High School Compares

See how Common Ground High School performs across key quality dimensions compared to state benchmarks.

Overall Score
5.3/10
29th percentile in CT
Academic
2.6/10
2.6/10
Growth
9.4/10
Above average
Environment
6.3/10
Above average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
66%
Teaching Staff
9:1 student-teacher ratio
25 teachers

Location

358 Springside Ave., New Haven, CT 06515

Nearby Alternatives

Families considering Common Ground High School may also want to explore other high schools in the area. HOPKINS SCHOOL (rated 6.9/10, 1.4 miles away), which scores notably higher. Another option is Eli Whitney Technical High School (rated 5.0/10, 1.0 miles away, in nearby Hamden), with a very similar rating. Additionally, James Hillhouse High School (rated 5.0/10, 1.5 miles away), with a very similar rating. For more schools in New Haven, see our New Haven schools guide .

Nearby Schools

20 within 2.0 mi
School Distance Rating
Brennan Rogers School New Haven 0.4 mi 5.0
Elm City Montessori School New Haven 0.7 mi 6.6
Barack H. Obama Magnet University School New Haven 0.7 mi 3.5
CHAPEL HAVEN SCHLEIFER CENTER New Haven 0.7 mi
Mauro-Sheridan Magnet School New Haven 0.8 mi 4.7
Beecher School New Haven 0.9 mi 3.8
Davis Academy for Arts & Design Innovation New Haven 1.0 mi 5.2
Eli Whitney Technical High School Hamden 1.0 mi 5.0
CHILDREN'S HOUSE OF MONTESSORI Woodbridge 1.0 mi
King/Robinson Magnet School New Haven 1.0 mi 4.2
Edgewood School New Haven 1.4 mi 4.9
Helen Street School Hamden 1.2 mi 6.1
HOPKINS SCHOOL New Haven 1.4 mi 6.9
James Hillhouse High School New Haven 1.5 mi 5.0
Barnard Environmental Magnet School New Haven 2.0 mi 5.1
Lincoln-Bassett School New Haven 1.5 mi 6.6
Augusta Lewis Troup School New Haven 1.9 mi 5.6
Church Street School Hamden 1.8 mi 8.0
Dunbar Hill School Hamden 2.2 mi 3.1
Wexler/Grant Community School New Haven 2.0 mi 5.1

Neighborhood Census ACS (2019-2023)

Census data for ZIP 06515 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$74,044

Median Home Value

$284,200

Median Rent

$1,410/mo

Population

18,388

College Educated

48.5%

Homeownership

42.4%

Avg Commute

20.9 min

Poverty Rate

22.6%

Median Age

31.4

Community Profile

The community surrounding Common Ground High School has a median household income of $74,044. It is a well-educated community where 49% of adults hold a bachelor's degree or higher. The median home value in the area is $284,200, with a median rent of $1,410/month. The area has a poverty rate of 22.6%, indicating some economic challenges in the community. The average commute for residents is 21 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
The Bridge Academy Bridgeport, CT 5.4
Putnam High School Putnam, CT 5.0
Thomaston High School Thomaston, CT 5.6
High School In The Community New Haven, CT 5.7
Global Experience Magnet School Bloomfield, CT 5.8
Housatonic Valley Regional High School Falls Village, CT 5.9

Frequently Asked Questions

Common questions about Common Ground High School

What grades does Common Ground High School serve?

Common Ground High School serves students in grades 9th through 12th.

How many students attend Common Ground High School?

Common Ground High School has an enrollment of approximately 223 students.

What is the student-teacher ratio at Common Ground High School?

The student-teacher ratio at Common Ground High School is 8.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Common Ground High School rank in CT?

Common Ground High School is ranked #703 out of 990 schools in CT.

What is Common Ground High School's MySchoolScout rating?

Common Ground High School has a composite rating of 5.3 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Common Ground High School?

Based on the most recent state assessment data, Common Ground High School has 6.7% math proficiency and 32.8% reading/ELA proficiency.

Is Common Ground High School a charter school?

Yes, Common Ground High School is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.

Is Common Ground High School a Title I school?

No, Common Ground High School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Common Ground High School?

65.5% of students at Common Ground High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

City Safety
High (4,132/100K)

FBI UCR 2024. City-level (New Haven). Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
223
Student-Teacher Ratio
8.9:1
Teachers (FTE)
25
Free/Reduced Lunch
65.5%
Type
regular
Setting
Midsize City
County
Connecticut Planning Region 7
Data Year
2023–2024

District

Common Ground High School District
District Enrollment
223
Schools in District
1
Per-Pupil Spending
$21,354
District Rank
#1 of 1

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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