BRENNAN H S

As a high-enrollment secondary school in SAN ANTONIO, Texas, BRENNAN H S hosts 2,965 students from grades 9 through 12, run under NORTHSIDE ISD. That puts it 272% bigger than the typical public school in Texas, which averages around 796 students.

Across the 128 schools in NORTHSIDE ISD (100,435 students total), BRENNAN H S accounts for its share of the district's footprint.

On the student-mix side, BRENNAN H S logs that Hispanic students make up the majority at 63%; the rest consists of 15% White, 14% Black, 5% multiracial, 3% Asian. That mix tracks the wider county fairly closely.

In terms of school funding signals, The school employs 174 full-time-equivalent teachers, for a student-teacher ratio near 17.0:1. That figure is higher than the state norm's 15.1:1 average. Around 34% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator. That share is lower than Bexar County's rate of about 63%.

Adjusting for the school's free-and-reduced-lunch share, BRENNAN H S sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 59.2%; this one delivers 61.4%.

Around the school, community-level numbers for Bexar County indicate median household income runs about $72,341, 32% of adults hold a bachelor's degree or higher, and the poverty rate sits near 11%. Across Bexar County's 638 public schools (combined enrollment of about 368,487 students), BRENNAN H S is one campus in the mix.

Nearest neighbor: HARMONY SCHOOL OF SCIENCE- SAN ANTONIO, around 0.5 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts BRENNAN H S at 1st of 7; the average score across the group is 49.0%.

Geographically, the school is in a bedroom-community area.

Five-year trend. Looking back 7 years, enrollment at BRENNAN H S has grew 12%, going from 2,649 students in 2018 to 2,965 in 2025. White enrollment moved from 22% to 15% across the same window.

On the community side, recent activity here tends to focus on classroom updates, athletics, and weather closures. The community welcomes input from current and former families.