Mather High School

Mather High School is a senior high of heavily attended scale in Chicago, Illinois, one of the schools within Chicago Public Schools Dist 299, enrolling 1,777 students in grades 9 through 12. Enrollment runs roughly 113% above the state mean of about 834.

Across the 622 schools in Chicago Public Schools Dist 299 (324,396 students total), Mather High School accounts for its share of the district's footprint.

On demographics, Mather High School records that the largest single group is Hispanic at 50%, but no single group is in the majority. Beyond that, the school shows 21% Asian, 15% Black, 13% White. By comparison, Cook County as a whole is about 27% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

Looking at the economic backdrop, Mather High School logs 121 full-time-equivalent teachers, putting the student-to-teacher ratio at about 14.7:1. Statewide, the average ratio sits near 13.8:1, putting Mather High School higher than the state norm the norm. An estimated 78% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Cook County runs at roughly 66%, so the school's eligibility rate is higher than the surrounding baseline.

After controlling for student poverty, Mather High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 26.2%, the actual is 23.1%, a residual of -3.1 points.

In the area at large, the surrounding county (Cook County) logs that the typical household earns roughly $83,498 per year, 43% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 10%. Across Cook County's 1406 public schools (combined enrollment of about 697,934 students), Mather High School is one campus in the mix.

The closest other public school is Jamieson Elem School, roughly 0.3 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Mather High School at 9th of 9; the average score across the group is 48.0%.

Mather High School operates from a metropolitan location.

Trend over the last 7 years. Looking back 7 years, enrollment at Mather High School has rose 22%, going from 1,451 students in 2018 to 1,777 in 2025. Hispanic enrollment moved from 36% to 50% across the same window. Class-load math has tightened: from 17.6:1 in 2018 to 14.7:1 in 2025.

On this page, posts here usually surface around school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.