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BRENNAN H S

Public
SAN ANTONIO, TX · NORTHSIDE ISD · 33.6% free/reduced lunch

Enrollment trend & projection

Grade 12 went from 631 in 2021 to 762 in 2024 — over 3 years.
+20.8%

Total enrollment + grade 12, NCES Common Core of Data (2021–2024).

If the recent trend holds…

At its recent rate of -0.8%/year, projecting from 2024's 2,965 students:

2025
2,942
2027
2,896
2029
2,850

≈ 115 fewer students by 2029 — a real revenue/relevance risk worth getting ahead of.

An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.

Revenue at risk

At $11,862 per student in district revenue, the 115 students projected to be lost by 2029 represent ≈ $1,364,130/year in funding at risk.

District total revenue ÷ enrollment, NCES F-33. Public funding largely follows enrollment, so a shrinking class is a recurring budget hit.

Nearby high schools — the local competition

The closest high schools families here also consider, and where their enrollment is heading.

SchoolTypeMilesHS enrollmentTrend
TAFT H S
SAN ANTONIO
Public 2.8 2,670 +0.9%
STEVENS H S
SAN ANTONIO
Public 2.8 2,546 -7.7%
WARREN H S
SAN ANTONIO
Public 3.4 2,542 -9.5%
HARMONY SCIENCE ACAD (SAN ANTONIO)
SAN ANTONIO
Public · charter 4.7 287 -27.9%
SOTOMAYOR H S
SAN ANTONIO
Public 4.9 2,627 +58.3%
IDEA MAYS COLLEGE PREPARATORY
SAN ANTONIO
Public · charter 5.0 377 +37.6%
HARLAN H S
SAN ANTONIO
Public 5.1 2,778 -22.8%
SST HILL COUNTRY COLLEGE PREP H S
SAN ANTONIO
Public · charter 5.4 165 +13.8%

Is BRENNAN H S winning or losing the families nearby?

An Enrollment Trend Audit shows exactly where students are going — and what it takes to keep them.

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