Lena M. Preston Elementary

Lena M. Preston Elementary, a mid-tier primary school in Rialto, California, operated by Rialto Unified, teaches 471 students, covering grades K through 5.

Rialto Unified comprises 29 schools with combined enrollment of 23,067 students; Lena M. Preston Elementary is among them.

Demographically, Lena M. Preston Elementary lists that Hispanic students make up the majority at 79%. Other groups include 16% Black, 3% multiracial. By comparison, San Bernardino County as a whole is about 55% Hispanic, so the school skews meaningfully more Hispanic than its surroundings.

Looking at school resources, On paper, Lena M. Preston Elementary has 20 full-time-equivalent teachers, translating to a class-load average of around 24.1:1. Statewide, the average ratio sits near 22.3:1, putting Lena M. Preston Elementary higher than the state norm the norm. About 89% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. By comparison, San Bernardino County runs at roughly 74%, so the school's eligibility rate is above the surrounding baseline.

On a residual basis (actual vs predicted given the student mix), Lena M. Preston Elementary sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 26.8%; this one delivers 22.6%.

Zooming out to the county, census data for San Bernardino County shows median household income runs about $85,478, 23% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 11%. Lena M. Preston Elementary is one of 583 public schools in San Bernardino County (combined enrollment of about 393,648 students).

Nearest neighbor: Eisenhower High, around 0.6 miles off. Within five miles, there are 8 other public schools. On composite proficiency, Lena M. Preston Elementary comes 7th of 8 in the immediate cluster, beneath the nearby-schools average of 28.8%.

The campus sits in a bedroom-community setting.

Trend over the last 7 years. Looking back 7 years, enrollment at Lena M. Preston Elementary has declined 23%, going from 611 students in 2018 to 471 in 2025.

Inside the community feed, members of the Lena M. Preston Elementary community share and discuss school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.