At a glance
Reported students
762
NCES CCD 2024–25
Teachers (FTE)
59
NCES CCD 2024–25
Student–teacher ratio
12.9:1
Calculated; not a class-size measure
Grades served
09–12
NCES preliminary directory 2025–26
School benchmarks
Illinois high enrollment
73rd percentile
Compared with 965 same-level schools reporting enrollment.
District median enrollment
411
Sullivan High School: 762 reported students.
State peer staffing position
54th percentile
12.9:1 reported; state peer median 12.6:1. Ratio is not class size.
Historical enrollment and staffing · CRDC 2021–22
These older figures are kept separate from 2024–25 statistics and benchmarks. Differences between years can reflect changes in enrollment, staffing, or reporting scope.
- Students
- 576
- Teachers (FTE)
- 55
- Student–teacher ratio
- 10.5:1
What the reported data says about Sullivan High School
Sullivan High School is a public high school serving grades 09–12 in Chicago. It is one of 641 current school records connected to Chicago Public Schools District 299. NCES reports 762 students for 2024–25.
Among 965 high schools in Illinois with comparable records, this school is larger than the reported median of 254 students. Its enrollment is at approximately the 73rd percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 12.9:1, close to the Illinois median of 12.6:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The largest reported race and ethnicity groups are Hispanic or Latino (36.4%) and Black (31%). English learners represent 42.9% of enrollment. Students served under IDEA represent 30.2%. These figures help families understand who the school serves; they are not rating inputs.
The 2021–22 civil-rights collection reports AP student enrollment, computer science. The school reported 1 AP course. Program availability changes, so families should confirm the current catalog and participation rules directly with the school.
Questions worth asking Sullivan High School
- 1How do the reported 12.9:1 student–teacher ratio and 59 teacher FTE translate into actual class sizes by grade?
- 2Have the reported academic programs changed since the 2021–22 CRDC collection?
- 3What counseling support is available today? The school reported 4 counselor FTE in 2021–22.
- 4Does community eligibility provide breakfast and lunch to every enrolled student, and are summer meals available?
Enrollment needs
- English learners
- 42.9%
- Students with disabilities
- 30.2%
- Free/reduced-price lunch
- 77.6%
- Lunch program
- Yes under Community Eligibility Option (CEO)
Reported support staff
- Counselors (FTE)
- 4
- Nurses (FTE)
- 0
- Psychologists (FTE)
- 0
- Social workers (FTE)
- 1
CRDC 2021–22 full-time-equivalent counts; verify current assignments with the school.
Student demographics
Race and ethnicity share of reported enrollment
- White15.7%
- Hispanic36.4%
- Black31%
- Asian11.4%
- American Indian / Alaska Native0.4%
- Native Hawaiian / Pacific Islander0.1%
- Multiracial5%
Race/ethnicity: NCES CCD 2024–25. English learner and disability context: CRDC 2021–22. Lunch eligibility: NCES CCD 2024–25. Privacy rules can produce missing values.
Programs reported by the school
AP student enrollment
Students enrolled
1 distinct course reported
Gifted and talented
Not reported as offered
Computer science
Offered
CRDC 2021–22: the AP flag records student enrollment; gifted and computer-science fields describe reported programs/classes. Confirm current courses and eligibility with the school.
Other schools in Chicago Public Schools District 299
Start with campuses at the same school level or with similar reported enrollment.
Englewood STEM High School
High · Grades 09–12
778 reported students
Clemente Community Academy HS
High · Grades 09–12
745 reported students
Disney II Magnet HS
High · Grades 07–12
738 reported students
Bogan High School
High · Grades 09–12
716 reported students
King College Prep High School
High · Grades 09–12
819 reported students
Chicago HS for Agricult Sciences
High · Grades 09–12
827 reported students
Public schools near Sullivan High School
Closest campuses by straight-line distance between NCES geocodes, favoring the same school level. Distance is not drive time or an attendance assignment.
| School | Grades | Students | Distance |
|---|---|---|---|
| Chicago Math & Sci Elem Charter High · Charter · Chicago Public Schools District 299 | 06–12 | 623 | 0.5 mi |
| Senn High School High · Chicago Public Schools District 299 | 09–12 | 1,571 | 1 mi |
| Mather High School High · Chicago Public Schools District 299 | 09–12 | 1,777 | 2 mi |
| Amundsen High School High · Chicago Public Schools District 299 | 09–12 | 1,507 | 2 mi |
| Devry Advantage Academy High Schl High · Chicago Public Schools District 299 | 11–12 | 152 | 2.4 mi |
| Northside College Preparatory Hs High · Chicago Public Schools District 299 | 09–12 | 1,061 | 2.5 mi |
Frequently asked questions about Sullivan High School
What grades does Sullivan High School serve?
Sullivan High School reports grades 09–12 in the NCES 2025–26 preliminary directory. It is classified as a high school in Chicago Public Schools District 299.
How many students attend Sullivan High School?
Sullivan High School reported 762 students in the NCES 2024–25 membership file. That places it near the 73rd percentile among 965 Illinois high schools reporting enrollment. The 2021–22 civil-rights collection recorded 576 students.
What is the student–teacher ratio at Sullivan High School?
The calculated ratio is 12.9:1, based on 762 students and 59 full-time-equivalent classroom teachers in 2024–25. The Illinois median for the same school level is 12.6:1. A ratio is not the same as average class size.
Is Sullivan High School a public, charter, or magnet school?
Sullivan High School is a public school and is not a charter school. Enrollment is generally based on Chicago Public Schools District 299 attendance boundaries and transfer rules.
What share of Sullivan High School students qualify for free or reduced-price meals?
77.6% of students were eligible for free or reduced-price lunch in 2024–25. The school participates in community eligibility, which can provide meals to every student and changes how eligibility is reported. This describes the students served and is not a quality measure.
Which school district is Sullivan High School in?
Sullivan High School is part of Chicago Public Schools District 299, based in Chicago, IL, which operates 641 current schools. Confirm attendance zones and enrollment rules with the district.
What public schools are near Sullivan High School?
The closest public schools by straight-line distance include Chicago Math & Sci Elem Charter (0.5 mi), Senn High School (1 mi), Mather High School (2 mi). Distance does not determine eligibility; attendance boundaries and program rules do.