Thomas Jefferson Senior High

Located at 1319 East 41st St., in Los Angeles, California, Thomas Jefferson Senior High is a modestly sized 9-12 campus that teaches 564 students (grades 9 through 12), part of Los Angeles Unified. Compared to the state average of about 838 students per school, that is 33% leaner than typical.

Thomas Jefferson Senior High is one of 784 schools operated by Los Angeles Unified, a district that instructs 406,887 students overall.

On the student-mix side, Thomas Jefferson Senior High logs that the student body is overwhelmingly Hispanic (90%). The remainder is composed of 6% Black, 3% White. The wider county runs roughly 48% Hispanic, putting the school's mix meaningfully more Hispanic than the area baseline.

Looking at the economic backdrop, The school lists 36 full-time-equivalent teachers, for a student-teacher ratio near 15.7:1. That figure is tighter than the state norm's 18.2:1 average. About 99% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is higher than Los Angeles County's rate of about 70%.

After controlling for student poverty, Thomas Jefferson Senior High tracks the demographic baseline. The model predicts 20.6% given the school's FRL share; actual proficiency is 23.7%.

In the area at large, community-level numbers for Los Angeles County indicate median household income runs about $90,112, 36% of adults hold a bachelor's degree or higher, and the poverty rate sits near 10%. Across Los Angeles County's 2244 public schools (combined enrollment of about 1,265,907 students), Thomas Jefferson Senior High is one campus in the mix.

Nearest neighbor: Nava College Preparatory Academy, around 0.0 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 5 schools in that immediate cluster with test data (this one included), Thomas Jefferson Senior High ranks 3rd on composite proficiency, below the local average of 26.4%.

The school occupies a high-density site.

Looking at the recent track record. Looking back 7 years, enrollment at Thomas Jefferson Senior High has contracted 16%, going from 668 students in 2018 to 564 in 2025. The Black share of enrollment ticked down from 10% to 6% over that span. The student-to-teacher ratio pulled in from 21.0:1 in 2018 to 15.7:1 today.

Within the allk12 community for this school, the page collects discussion, questions, and updates around open house dates, ride-share offers, and field-trip permission slips. Anyone with firsthand experience at this school can post or comment.