Common Ground High School District

Summary:

Common Ground High School is the sole public charter high school serving grades 9-12 in the Common Ground High School District in Connecticut. With a total enrollment of 223 students, the school has a relatively low student-teacher ratio of 8.7 to 1, which could be beneficial for individual attention. However, the school faces some significant challenges, as evidenced by its fluctuating statewide ranking, academic performance gaps, and high chronic absenteeism rate.

Common Ground High School has a district rank of 122 out of 156 in Connecticut and is rated 1 star out of 5 by SchoolDigger. Its statewide ranking has varied over the years, ranging from 79 out of 121 high schools in 2017-2018 to 124 out of 200 in 2020-2021, with a current ranking of 87 out of 141 in 2024-2025. The school's test scores, particularly in Math and Science, lag significantly behind the state averages, with only 22.2% of 11th-grade students proficient or better in SAT Math and 30.2% proficient or better in Science (NGSS), compared to the state averages of 31.1% and 47.7%, respectively.

Additionally, the school has a relatively high chronic absenteeism rate of 17.7% for the 2023-2024 school year, which could be a contributing factor to the academic performance challenges. The school also serves a predominantly low-income student population, with 65.47% of students receiving free or reduced-price lunch. While the school's spending per student for the 2018-2019 school year was higher than the state average at $17,053, the data suggests that there may be opportunities for improvement in areas such as curriculum, instructional practices, student engagement, and targeted support for struggling students.

District Detail

358 Springside Ave.
New Haven, CT 06515

(203) 389-0823

SchoolDigger Rank:
122^nd of 156 Connecticut districts

See the 2025 Connecticut District rankings!

Grades served: 9-12
Students: 221

Primary Schools: 0
Middle Schools: 0
High Schools: 1
Alternative Schools: 0

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking ()				NGSS Science (2025)	SAT Math (2025)	Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score ()	Statewide Rank ()	State Percentile ()	Rank Change from Previous Year	NGSS Science 11th Grade	SAT Math 11th Grade	Total
Common Ground High School	Public, Charter	9-12	358 Springside Ave.	New Haven	06515	South Central Connecticut Planning Region	Common Ground High School District	Yes	No	No	Yes	(203) 389-4333	221	22	9.9	64.3%	33 (14.9%)	72 (32.6%)	103 (46.6%)	4 (1.8%)	1 (0.5%)	0 (0.0%)	7 (3.2%)	30.3	87^th of 141 public high schools	38.3%					(n/a)	30.2	22.2	$20,127

Districts nearby

District	Distance	# of Schools	Statewide Rank
New Haven School District	0.42 mi	39	147^th
Elm City Montessori School District	0.66 mi	1
Connecticut Technical Education and Career System	0.97 mi	17	144^th
Hamden School District	1.18 mi	10	133^rd
Edmonds Cofield Preparatory Academy for Young Men Inc. Distr	1.4 mi	1

See the top CT Connecticut districts

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.