Rancho Dominguez Preparatory

Rancho Dominguez Preparatory, a modestly sized high school in Long Beach, California, overseen by Los Angeles Unified, caters to 701 students, covering grades 6 through 12.

Within Los Angeles Unified, which oversees 784 schools and 406,887 students, Rancho Dominguez Preparatory is one campus in the system.

Demographically, Rancho Dominguez Preparatory shows that Hispanic students make up the majority at 66%. Other groups include 21% Black, 5% Asian, 3% White, 3% Pacific Islander. That is considerably more Hispanic than the county at large, where the share is closer to 48%.

Looking at school resources, Staff filings list 40 full-time-equivalent teachers, which works out to roughly 17.4:1 students per teacher. The state averages around 18.2:1, so this campus is tighter than the state norm typical. Around 91% of the student body qualifies for free or reduced-price meals, often used as a Title I proxy. By comparison, Los Angeles County runs at roughly 70%, so the school's eligibility rate is above the surrounding baseline.

On a demographically-adjusted basis, Rancho Dominguez Preparatory sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 25.5%; this one delivers 30.9%.

In the area at large, Los Angeles County reports that median household income runs about $90,112, 36% of adults hold a bachelor's degree or higher, and the poverty rate sits near 10%. Rancho Dominguez Preparatory is one of 2244 public schools in Los Angeles County (combined enrollment of about 1,265,907 students).

Nearest neighbor: Dominguez Elementary, around 0.2 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Among the 9 schools in that immediate cluster with test data (this one included), Rancho Dominguez Preparatory ranks 7th on composite proficiency, beneath the local average of 41.2%.

Geographically, the school is in a high-density area.

Trend over the last 7 years. Looking back 7 years, enrollment at Rancho Dominguez Preparatory has decreased 17%, going from 842 students in 2018 to 701 in 2025. Class-load math has pulled in: from 21.1:1 in 2018 to 17.4:1 in 2025.

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