Enrollment
221
Connecticut · 2024-25 NCES data
High school (grades 9-12) · New Haven, CT
Common Ground High School
Federal NCES profile for Common Ground High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 090001400807Charter school
👥 S:T ratio 37
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 56
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Common Ground High School earns 27/100 on the Resource Investment Index, with class sizes larger than 94% of Connecticut schools.
- #9 of 9
- high schools in New Haven · Resource Index
- 27
- Resource Index · Lower
- 15.8:1
- large classes for Connecticut
- 62.4%
- free-lunch eligible
Common Ground High School has class sizes larger than 94% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Common Ground High School ranks #9 of 9 high schools in New Haven, CT.
School address
District: Common Ground High School District · Connecticut
NCES ID 090001400807 Verify on NCES CCD record →
Teachers (FTE)
14.0
Federal CCD staff survey
Students per teacher
15.8:1
vs 12.1:1 Connecticut avg
+31% vs state
Free-lunch eligible
62.4%
vs 36.4% Connecticut avg
+71% vs state
Student-teacher ratio in context
How Common Ground High School compares with Connecticut and U.S. medians
What stands out at Common Ground High School
Common Ground High School is a higher-need, small charter high school in New Haven, Connecticut, enrolling 221 students.
Class loads run heavy: 15.8:1 is larger than about 94% of Connecticut schools and 31% above the 12.1:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 62.4% of students eligible for free meals.
Enrollment of 221 puts it in the smaller third of Connecticut schools by headcount.
Its Resource Investment Index trails 91% of the 1,003 Connecticut schools with a score on record, one of the lower results on this measure.
Among 46 similarly sized, similarly resourced-need Connecticut schools statewide, it ranks #41, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (47%) and African American (33%) (diversity index 65/100).
On the academic-pipeline side it reports 2 Advanced Placement courses.
Counselor coverage is strong, about 221 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 49.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 24.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among New Haven's high schools, it stands alongside Wilbur Cross High School (1,742 students): Common Ground High School is smaller than that campus by headcount and runs heavier classes (15.8:1 vs 13.5:1).
Common Ground High School District is a single-school charter district, so Common Ground High School operates independently rather than alongside district-mates.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Common Ground High School compares
Common Ground High School on the metrics families compare, against Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.8:1 | ▲ 31% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 62.4% | ▲ 71% | 36.4% | 51.7% |
| Enrollment | 221 | top 89% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.8:1
Leaner classes than 40% of US schools, a middle-of-the-pack class size.
221
Bigger than 22% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
62.4%
free-lunch eligible
- 71% above the Connecticut average of 36.4%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
15.8:1
students per teacher
- 31% above state mean
Top 94% in Connecticut - lower ratio than 6% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
49.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$22,220
per pupil, district-wide
- below Connecticut avg of $23,870
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 221 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 10 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 4.5 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 46.8%
African American 32.7%
White 15.0%
Two or More 3.2%
Asian 1.8%
American Indian / Alaska Native 0.5%
Largest group: Hispanic or Latino at 46.8% of enrollment.
Student-body diversity index 65.0/100
Simpson diversity index - at 65.0, Common Ground High School is more mixed than the Connecticut school average of 50.5.
Programs
AP courses offered 2
Funding & spending
District-wide per-pupil expenditure for Common Ground High School District, which includes Common Ground High School.
$22,220
Per student
-7%
vs Connecticut
Avg $23,870
+34%
vs U.S.
Avg $16,593
Revenue mix
Local 12.6%
State 63.0%
Federal 24.5%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
Similar high schools in New Haven
6 comparable high schools (grades 9-12) serving the same city.
Wilbur Cross High School
Standard public school
1,742 students 13.5:1 students per teacher
James Hillhouse High School
Standard public school
1,124 students 14.8:1 students per teacher
Hill Regional Career High School
Standard public school
625 students 10.4:1 students per teacher
Cooperative High School - Inter-District Magnet
Standard public school
560 students 10.4:1 students per teacher
Metropolitan Business Academy
Standard public school
380 students 11.9:1 students per teacher
Sound School
Standard public school
332 students 8.5:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Connecticut, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~221 students)
Similar student-teacher ratio (~15.8:1)
Next steps
Verify locally before acting on Common Ground High School's federal record.
- Compare Common Ground High School against another school. Compare schools
- Common Ground High School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Common Ground High School
How many students attend Common Ground High School?
Common Ground High School has 221 students enrolled. It is a high school in New Haven, CT.
What is the student-teacher ratio at Common Ground High School?
The student-teacher ratio at Common Ground High School is 15.8:1, which is 31% higher than the Connecticut average of 12.1:1 and 1% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Common Ground High School?
62.4% of students at Common Ground High School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Common Ground High School?
The largest demographic group at Common Ground High School is Hispanic or Latino at 46.8% of enrollment, in New Haven, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.0/100.
What is the Resource Investment Index for Common Ground High School?
Common Ground High School has a Resource Investment Index of 27/100 (lower reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Common Ground High School rank among high schools in New Haven?
By Resource Investment Index, Common Ground High School ranks #9 of 9 high schools in New Haven, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in New Haven on the city page.
Is Common Ground High School a good school?
Common Ground High School earns 27/100 on the Resource Investment Index, with class sizes larger than 94% of Connecticut schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Common Ground High School District?
None; Common Ground High School District is a single-school charter district, and Common Ground High School is its only campus.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.