Enrollment
493
Maryland · 2024-25 NCES data
Other / mixed grade configuration · Baltimore, MD
Tunbridge Public Charter School
Federal NCES profile for Tunbridge Public Charter School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataOther / mixed grade configurationNCES 240009001689Charter school
👥 S:T ratio 32
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 43
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Tunbridge Public Charter School earns 36/100 on the Resource Investment Index, with class sizes larger than 81% of Maryland schools.
- #84 of 177
- schools in Baltimore · Resource Index
- 36
- Resource Index · Typical
- 17:1
- large classes for Maryland
- 38.2%
- free-lunch eligible
Tunbridge Public Charter School has class sizes larger than 81% of Maryland schools. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Tunbridge Public Charter School ranks #84 of 177 schools in Baltimore, MD.
School address
District: Baltimore City Public Schools · Maryland
NCES ID 240009001689 Verify on NCES CCD record →
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
17:1
vs 14.5:1 Maryland avg
+17% vs state
Free-lunch eligible
38.2%
vs 49.0% Maryland avg
-22% vs state
Student-teacher ratio in context
How Tunbridge Public Charter School compares with Maryland and U.S. medians
What stands out at Tunbridge Public Charter School
Tunbridge Public Charter School is a mid-sized charter combined-grade school in Baltimore, Maryland, enrolling 493 students.
Class loads run somewhat heavier than typical: 17:1 puts it in the larger third of Maryland schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 38.2% of students eligible for free meals.
With 493 students, its enrollment sits close to the Maryland median campus size.
Its Resource Investment Index lands in the lower third of 1,382 scored Maryland schools.
Among 279 similarly sized, similarly resourced-need Maryland schools statewide, it ranks #236, in the lower tier once campus size and economic need are matched.
Its student body is led by African American (78%) and White (10%) (diversity index 37/100).
Counselor access is stretched at roughly 986 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 22.7% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 15.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Baltimore's public schools, it stands alongside Roland Park Elementary/Middle (1,371 students): Tunbridge Public Charter School is smaller than that campus by headcount and runs leaner classes (17:1 vs 19.6:1).
Baltimore City Public Schools also operates Mergenthaler Vocational-Technical High (1,714 students) and Baltimore Polytechnic Institute (1,632 students) alongside Tunbridge Public Charter School.
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 Tunbridge Public Charter School compares
Tunbridge Public Charter School on the metrics families compare, against Maryland and U.S. means.
| Metric | This school | vs Maryland | Maryland avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17:1 | ▲ 17% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 38.2% | ▼ 22% | 49.0% | 51.7% |
| Enrollment | 493 | top 56% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17:1
Leaner classes than 30% of US schools, heavier class loads than most.
493
Bigger than 61% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
38.2%
free-lunch eligible
- 22% below the Maryland average of 49.0%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
17:1
students per teacher
- 17% above state mean
Top 81% in Maryland - lower ratio than 19% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
22.7%
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
$18,272
per pupil, district-wide
- below Maryland avg of $20,446
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
2
in-school suspensions + 9 out-of-school
Suspension rate: 0.4 per 100 students. Combined in-school and out-of-school rate: 2.2 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
African American 78.3%
White 9.5%
Two or More 6.3%
Hispanic or Latino 4.7%
Asian 0.8%
American Indian / Alaska Native 0.4%
Largest group: African American at 78.3% of enrollment.
Student-body diversity index 37.2/100
Simpson diversity index - at 37.2, Tunbridge Public Charter School is less mixed than the Maryland school average of 52.3.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Baltimore City Public Schools, which includes Tunbridge Public Charter School.
$18,272
Per student
-11%
vs Maryland
Avg $20,446
+10%
vs U.S.
Avg $16,593
Revenue mix
Local 33.3%
State 51.4%
Federal 15.3%
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.
How Tunbridge Public Charter School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mergenthaler Vocational-Technical High | Larger | Higher economic need | Similar S:T ratio |
| Baltimore Polytechnic Institute | Larger | Similar economic need | Higher S:T ratio |
| Baltimore City College | Larger | Similar economic need | Similar S:T ratio |
| Kipp Harmony Academy | Larger | Higher economic need | Lower S:T ratio |
| Roland Park Elementary/Middle | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Tunbridge Public Charter School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,714
- Students per teacher
- 16.5:1
- Resource Index
- 49/100
- Enrollment
- 1,632
- Students per teacher
- 21.2:1
- Resource Index
- 32/100
- Enrollment
- 1,470
- Students per teacher
- 17.7:1
- Resource Index
- 38/100
- Enrollment
- 1,399
- Students per teacher
- 13.7:1
- Resource Index
- 29/100
- Enrollment
- 1,371
- Students per teacher
- 19.6:1
- Resource Index
- 35/100
Similar other schools in Baltimore
6 comparable other schools (grades Mixed) serving the same city.
Roland Park Elementary/Middle
Standard public school
1,371 students 19.6:1 students per teacher
Lakeland Elementary/Middle
Standard public school
1,070 students 14.5:1 students per teacher
John Ruhrah Elementary/Middle
Standard public school
1,061 students 13.1:1 students per teacher
Academy for College and Career Exploration
Standard public school
967 students 16.4:1 students per teacher
Hampstead Hill Academy
Standard public school
933 students 20.3:1 students per teacher
The Belair-Edison School
Standard public school
911 students 13.6:1 students per teacher
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Maryland, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~493 students)
Next steps
Verify locally before acting on Tunbridge Public Charter School's federal record.
- Compare Tunbridge Public Charter School against another school. Compare schools
- Baltimore City Public Schools'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 Tunbridge Public Charter School
How many students attend Tunbridge Public Charter School?
Tunbridge Public Charter School has 493 students enrolled. It is a public school in Baltimore, MD.
What is the student-teacher ratio at Tunbridge Public Charter School?
The student-teacher ratio at Tunbridge Public Charter School is 17:1, which is 17% higher than the Maryland average of 14.5:1 and 8% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Tunbridge Public Charter School?
38.2% of students at Tunbridge Public Charter School are eligible for free lunch, compared to the Maryland average of 49.0%.
What is the racial and ethnic makeup of Tunbridge Public Charter School?
The largest demographic group at Tunbridge Public Charter School is African American at 78.3% of enrollment, in Baltimore, MD.
What is the Resource Investment Index for Tunbridge Public Charter School?
Tunbridge Public Charter School has a Resource Investment Index of 36/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Tunbridge Public Charter School rank among schools in Baltimore?
By Resource Investment Index, Tunbridge Public Charter School ranks #84 of 177 schools in Baltimore, MD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Baltimore on the city page.
Is Tunbridge Public Charter School a good school?
Tunbridge Public Charter School earns 36/100 on the Resource Investment Index, with class sizes larger than 81% of Maryland 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 Baltimore City Public Schools?
Besides Tunbridge Public Charter School, Baltimore City Public Schools also operates Mergenthaler Vocational-Technical High (1,714 students), Baltimore Polytechnic Institute (1,632 students), and Baltimore City College (1,470 students). See the Baltimore City Public Schools district page for the complete list.
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.