La Mesa Junior High
Santa Clarita, CA · William S. Hart Union High · Grades 7-8
354th of 1,294 California middle schools statewide · better than 73%▲ Improving
La Mesa Junior High ranking
SchoolRow ranks La Mesa Junior High 354th of 1,294 California middle schools for 2024–25, based on CAASPP 2024–25 English and Math results — better than 73% of middle schools statewide. Its statewide percentile went from 58th in 2015 to 73th in 2025 — improving.
La Mesa Junior High test scores
Percent meeting or exceeding the state standard, CAASPP 2024–25 · 926 students tested
La Mesa Junior High students
Racial and ethnic breakdown of 1,023 students (2023–24, NCES) — and how it has shifted since 2013
| Group | Trend | 2013 | 2023 | Change |
|---|---|---|---|---|
| Hispanic | 55.4% | 52.4% | ▼ 3.0 pts | |
| White | 21.3% | 25.5% | ▲ 4.2 pts | |
| Asian | 10.2% | 10.0% | ▼ 0.2 pts | |
| Black | 7.9% | 8.0% | ▲ 0.1 pts | |
| Two or more races | 5.0% | 3.9% | ▼ 1.1 pts |
Homes near La Mesa Junior High
Typical home value $719K in zip 91351 as of 2026-05 · trend since 2000
Data Provided by Zillow Group
Middle schools near La Mesa Junior High
Closest same-level schools, with 2024–25 state rank
- 7Sierra Vista Junior HighWilliam S. Hart Union High · 0.8 mi away467th of 1,294
ELA 53% · Math 34% - 8Placerita Junior HighWilliam S. Hart Union High · 3.6 mi away305th of 1,294
ELA 62% · Math 47% - 9Arroyo Seco Junior HighWilliam S. Hart Union High · 3.9 mi away217th of 1,294
ELA 69% · Math 55% - 9Rio Norte Junior HighWilliam S. Hart Union High · 5.7 mi away139th of 1,294
ELA 75% · Math 63% - 10Rancho Pico Junior HighWilliam S. Hart Union High · 6.4 mi away95th of 1,294
ELA 81% · Math 66% - 5Olive Vista MiddleLos Angeles Unified · 6.9 mi away702nd of 1,294
ELA 41% · Math 28% - 9Robert Frost MiddleLos Angeles Unified · 8.1 mi away148th of 1,294
ELA 74% · Math 62% - 5PUC Nueva Esperanza Charter AcademyLos Angeles Unified · 8.7 mi away · charter746th of 1,294
ELA 42% · Math 23%
Frequently asked questions
What school district is La Mesa Junior High in?
La Mesa Junior High is part of the William S. Hart Union High district in Santa Clarita, California.
Is La Mesa Junior High a good school?
SchoolRow ranks La Mesa Junior High 354th of 1,294 California middle schools (better than 73% statewide) based on 2024–25 test results (CAASPP 2024–25).
What is the racial makeup of La Mesa Junior High?
Hispanic 52%, White 26%, Asian 10%, Black 8% (1,023 students, 2023–24).
How much do homes near La Mesa Junior High cost?
The typical home value in zip code 91351 is $719K as of 2026-05 (Zillow ZHVI).
Sources: state education department data (CAASPP 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.