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Common Ground High School

Public, Charter Grades 9-12

Summary

Common Ground High School is a public charter high school in New Haven, Connecticut, serving 223 students in grades 9-12. The school is part of the Common Ground High School District, which is ranked 122 out of 156 districts in the state and has a 1-star rating from SchoolDigger.

Academically, Common Ground High School has consistently underperformed compared to the state average. In the 2024-2025 school year, only 22.2% of 11th-grade students were proficient or better in SAT/Math, compared to the state average of 31.1%. Similarly, only 30.2% were proficient or better in NGSS/Science, compared to the state average of 47.7%. The school's four-year graduation rate has ranged from 73.3% to 88.9% in recent years, which is lower than the state average. Additionally, Common Ground High School has had high chronic absenteeism rates, ranging from 17.7% to 38.9% in recent years, significantly higher than the state average.

When compared to nearby schools, such as Amity Regional High School, which is located about 2.88 miles away, Common Ground High School generally performs worse academically. For example, Amity Regional High School has significantly higher academic performance, with 81.4% of 11th-grade students proficient or better in SAT/English Language Arts and 52.8% proficient or better in SAT/Math. The high chronic absenteeism rates and the high percentage of students from low-income families, ranging from 65.47% to 69.03% in recent years, may be contributing factors to the school's academic challenges.

221

Students ?

9.9

Student/teacher ratio ?

$20,127

Per pupil spending ?

64.3%

Free/discounted lunch ?

358 Springside Ave.
New Haven, CT 06515

(203) 389-4333

District: Common Ground High School District

Racial breakdown:

Hispanic:

46.6%

African American:

32.6%

White:

14.9%

See top rated Connecticut public schools

Compare Common Ground High School to nearby high schools!

At a glance

▲ Ranking trend: Improving — 15th percentile in 2009 → 38th in 2025

Strengths

✓Ranking is trending up — up 23 percentile points since 2009

✓Small classes — about 10 students per teacher

Worth a look

!High chronic absenteeism (32% vs 16% Connecticut)

Not ranked this year

Common Ground High School did not have enough recent test-score data to be ranked. Check the trend below for past years.

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

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2025	30.3	87 of 141	38.3%	★★☆☆☆
2021	34.7	124 of 200	38.0%	★★☆☆☆
2018	38.8	79 of 121	34.7%	★★☆☆☆
2017	31.5	89 of 140	36.4%	★★☆☆☆
2015	42.6	122 of 196	37.8%	★★☆☆☆
2013	57.6	110 of 193	43.0%	★★☆☆☆
2012	41.7	135 of 188	28.2%	★☆☆☆☆
2011	59.4	107 of 189	43.4%	★★☆☆☆
2010	37.3	141 of 186	24.2%	★☆☆☆☆
2009	23.9	150 of 176	14.8%	★☆☆☆☆
2008	21.8	149 of 176	15.3%	★☆☆☆☆
2007	1.2	168 of 176	4.5%	☆☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2026	23.9	53 of 69	23.2%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	Connecticut percentile	Rating
2021	29.7	128 of 182	29.7%	★★☆☆☆

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)

Male (2021)30th percentile-8 vs school

Low Socio Economic Status (2026)23rd percentile

4.0

2 ratings · 1 written review

5★1

4★0

3★1

2★0

1★0

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What people are saying

by a parent
Monday, November 9, 2015

My son graduated this past year and my daughter is a sophmore. I can't say enough about how great this school is. My son was very well prepared for college and had an amazing array of outside opportunities which only added to his college prep resume. He also had a lot of fun in high school with all-school hikes, wilderness field trips and other fun group activities. Even kids that aren't that into nature and ecology can benefit from the school's ecological focus. My son didn't take that many "ecology" type course work and he wasn't pressured to do so. He took a very traditional set of high school classes and did very well due to the excellent instruction he received. There are fewer AP's offered than you will find at a large school but the ones that you do take are very well taught and supported so if you study hard you will do well on the AP exams which is what matters most about AP's. My daughter is a current Sophmore and is very challenged by her coursework. She's found a very nice group of friends and because the school is quite small can get help from teachers anytime she feels she needs it. My son was literally accepted into 12 colleges! And I expect the same thing will happen for my daughter. If you are serious about college for your child I highly recommend CG. Not only will your child get a great high school education they will have a wonderful experience as well. What more could one ask for from a high school? Close Quote

Schools Near Common Ground High School

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Ranking:

E Elementary M Middle H High A Alternative P Private

School	Students/Teachers	Ranking (2026)	Ranking (2025)	NGSS Science (2026)	SAT English Language Arts (2026)	SAT Math (2026)	Per Pupil Expenditures (2025)
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%)	7 (3.2%)							(n/a)	1095.0			$20,127
Eli Whitney Technical High School	Public	9-12	100 Fairview Ave	Hamden	06514	South Central Connecticut Planning Region	Connecticut Technical Education and Career System	No	No	No	Yes	(203) 397-4031	586	57	10.2	70.0%	26 (4.4%)	183 (31.2%)	351 (59.9%)	1 (0.2%)	0 (0.0%)	19 (3.2%)	11	124^th of 135 public high schools	8.1%				(n/a)	24.4	25.6	4.7	$34,155
James Hillhouse High School	Public	9-12	480 Sherman Parkway	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	No	No	Yes	(475) 220-7500	1,124	84	13.3	81.4%	66 (5.9%)	525 (46.7%)	451 (40.1%)	45 (4.0%)	2 (0.2%)	30 (2.7%)	12	122^nd of 135 public high schools	9.6%	7.1	136^th of 141 public high schools	3.5%	14	21.4	19.7	11.6	$21,211
Hill Regional Career High School	Public, Magnet	9-12	140 Legion Ave.	New Haven	06519	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	No	(475) 220-5000	625	55	11.3	82.1%	56 (9.0%)	245 (39.2%)	282 (45.1%)	28 (4.5%)	0 (0.0%)	13 (2.1%)	27.3	86^th of 135 public high schools	36.3%	18.2	109^th of 141 public high schools	22.7%	23	42.2		8.5	$23,110
New Haven Academy	Public, Magnet	9-12	444 Orange Street	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	No	(475) 220-6600	321	24	13.3	63.2%	49 (15.3%)	141 (43.9%)	116 (36.1%)	2 (0.6%)	0 (0.0%)	12 (3.7%)							(n/a)	1089.0		20.3	$21,333
Cooperative High School - Inter-District Magnet	Public, Magnet	9-12	177 College Street	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	No	(475) 220-2400	560	48	11.6	72.3%	69 (12.3%)	239 (42.7%)	219 (39.1%)	9 (1.6%)	0 (0.0%)	20 (3.6%)	13.2	118^th of 135 public high schools	12.6%	20.5	106^th of 141 public high schools	24.8%	12	16.7	26.4	13.6	$22,452
Hamden High School	Public	9-12	2040 Dixwell Ave.	Hamden	06514	South Central Connecticut Planning Region	Hamden School District	No	No	No	No	(203) 407-2040	1,609	119	13.5	46.9%	357 (22.2%)	571 (35.5%)	464 (28.8%)	109 (6.8%)	3 (0.2%)	102 (6.3%)							(n/a)	34.9			$26,088
Wilbur Cross High School	Public	9-12	181 Mitchell Dr.	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	No	No	No	(475) 220-7400	1,742	127	13.6	75.7%	157 (9.0%)	333 (19.1%)	1,161 (66.6%)	51 (2.9%)	2 (0.1%)	36 (2.1%)	12.9	119^th of 135 public high schools	11.9%	7.8	135^th of 141 public high schools	4.3%	16	22.0	22.9	12.1	$19,455
Amity Regional High School	Public	9-12	25 Newton Rd.	Woodbridge	06525	South Central Connecticut Planning Region	Regional School District 05	No	No	No	Yes	(203) 397-4830	1,347	122	11.0	16.8%	885 (65.7%)	49 (3.6%)	151 (11.2%)	205 (15.2%)	3 (0.2%)	51 (3.8%)	85.8	21^st of 135 public high schools	84.4%	85.4	24^th of 141 public high schools	83.0%	3	68.3	78.6	54.8	$23,412
High School In The Community	Public, Magnet	9-12	175 Water St.	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	Yes	(475) 220-6200	251	25	10.0	80.1%	24 (9.6%)	102 (40.6%)	108 (43.0%)	7 (2.8%)	1 (0.4%)	8 (3.2%)							(n/a)	26.2			$25,371

Frequently Asked Questions about Common Ground High School

What is the racial makeup of Common Ground High School?

Students at Common Ground High School are 47% Hispanic, 33% African American, 15% White, 3% Two or more races, 2% Asian.

What district is Common Ground High School in?

Common Ground High School District

How many students attend Common Ground High School?

In the 2024-25 school year, 221 students attended Common Ground High School.

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Latest Connecticut data All new data »

2024–25 through 2025–26 attendance data & graduation ratesAug 31, 2026

2025–26 NGSS, SAT & SBAC test scoresAug 31, 2026

2024–25 school spending dataApr 2, 2026

2024–25 attendance dataNov 6, 2025

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.

School													Students/Teachers											Ranking (2026)				Ranking (2025)				NGSS Science (2026)	SAT English Language Arts (2026)	SAT Math (2026)	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 (2025)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	NGSS Science 11th Grade	SAT English Language Arts 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%)								(n/a)	1095.0			$20,127
Eli Whitney Technical High School	Public	9-12	100 Fairview Ave	Hamden	06514	South Central Connecticut Planning Region	Connecticut Technical Education and Career System	No	No	No	Yes	(203) 397-4031	586	57	10.2	70.0%	26 (4.4%)	183 (31.2%)	351 (59.9%)	1 (0.2%)	0 (0.0%)	0 (0.0%)	19 (3.2%)	11	124^th of 135 public high schools	8.1%					(n/a)	24.4	25.6	4.7	$34,155
James Hillhouse High School	Public	9-12	480 Sherman Parkway	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	No	No	Yes	(475) 220-7500	1,124	84	13.3	81.4%	66 (5.9%)	525 (46.7%)	451 (40.1%)	45 (4.0%)	2 (0.2%)	0 (0.0%)	30 (2.7%)	12	122^nd of 135 public high schools	9.6%		7.1	136^th of 141 public high schools	3.5%	14	21.4	19.7	11.6	$21,211
Hill Regional Career High School	Public, Magnet	9-12	140 Legion Ave.	New Haven	06519	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	No	(475) 220-5000	625	55	11.3	82.1%	56 (9.0%)	245 (39.2%)	282 (45.1%)	28 (4.5%)	0 (0.0%)	0 (0.0%)	13 (2.1%)	27.3	86^th of 135 public high schools	36.3%		18.2	109^th of 141 public high schools	22.7%	23	42.2		8.5	$23,110
New Haven Academy	Public, Magnet	9-12	444 Orange Street	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	No	(475) 220-6600	321	24	13.3	63.2%	49 (15.3%)	141 (43.9%)	116 (36.1%)	2 (0.6%)	0 (0.0%)	0 (0.0%)	12 (3.7%)								(n/a)	1089.0		20.3	$21,333
Cooperative High School - Inter-District Magnet	Public, Magnet	9-12	177 College Street	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	No	(475) 220-2400	560	48	11.6	72.3%	69 (12.3%)	239 (42.7%)	219 (39.1%)	9 (1.6%)	0 (0.0%)	0 (0.0%)	20 (3.6%)	13.2	118^th of 135 public high schools	12.6%		20.5	106^th of 141 public high schools	24.8%	12	16.7	26.4	13.6	$22,452
Hamden High School	Public	9-12	2040 Dixwell Ave.	Hamden	06514	South Central Connecticut Planning Region	Hamden School District	No	No	No	No	(203) 407-2040	1,609	119	13.5	46.9%	357 (22.2%)	571 (35.5%)	464 (28.8%)	109 (6.8%)	3 (0.2%)	0 (0.0%)	102 (6.3%)								(n/a)	34.9			$26,088
Wilbur Cross High School	Public	9-12	181 Mitchell Dr.	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	No	No	No	(475) 220-7400	1,742	127	13.6	75.7%	157 (9.0%)	333 (19.1%)	1,161 (66.6%)	51 (2.9%)	2 (0.1%)	0 (0.0%)	36 (2.1%)	12.9	119^th of 135 public high schools	11.9%		7.8	135^th of 141 public high schools	4.3%	16	22.0	22.9	12.1	$19,455
Amity Regional High School	Public	9-12	25 Newton Rd.	Woodbridge	06525	South Central Connecticut Planning Region	Regional School District 05	No	No	No	Yes	(203) 397-4830	1,347	122	11.0	16.8%	885 (65.7%)	49 (3.6%)	151 (11.2%)	205 (15.2%)	3 (0.2%)	0 (0.0%)	51 (3.8%)	85.8	21^st of 135 public high schools	84.4%		85.4	24^th of 141 public high schools	83.0%	3	68.3	78.6	54.8	$23,412
High School In The Community	Public, Magnet	9-12	175 Water St.	New Haven	06511	South Central Connecticut Planning Region	New Haven School District	No	Yes	No	Yes	(475) 220-6200	251	25	10.0	80.1%	24 (9.6%)	102 (40.6%)	108 (43.0%)	7 (2.8%)	1 (0.4%)	0 (0.0%)	8 (3.2%)								(n/a)	26.2			$25,371