Ruth Grimes Elementary

Ruth Grimes Elementary operates as a moderately sized primary school in Bloomington, California, operated by Colton Joint Unified. Current enrollment sits at 606 students spanning grades K through 6. That puts it 30% larger than the typical public school in California, which averages around 465 students.

Colton Joint Unified comprises 27 schools with combined enrollment of 18,397 students; Ruth Grimes Elementary is among them.

Demographically, Ruth Grimes Elementary records that 93% of students identify as Hispanic, making the school strongly Hispanic-majority. Other groups include 2% Black, 2% White. By comparison, San Bernardino County as a whole is about 55% Hispanic, so the school skews visibly more Hispanic than its surroundings.

Looking at school resources, The school employs 28 full-time-equivalent teachers, for a student-teacher ratio near 21.6:1. The state averages about 22.3:1, putting this campus right in line with peers. Roughly 85% of students at Ruth Grimes Elementary qualify for free or reduced-price lunch, often used as a Title I proxy. That share is noticeably above San Bernardino County's rate of about 74%.

Adjusting for the school's free-and-reduced-lunch share, Ruth Grimes Elementary ranks in the top 10% of California public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 28.6%; Ruth Grimes Elementary posts 44.4%, +15.8 points above that line.

Across the wider county, census data for San Bernardino County shows the typical household earns roughly $85,478 per year, roughly 23% of adults have completed at least a four-year degree, and roughly 11% of residents live below the federal poverty line. In all, San Bernardino County runs 583 public schools (combined enrollment of about 393,648 students), of which Ruth Grimes Elementary is one.

Joe Baca is the nearest neighboring public school, about 0.4 miles from this campus. Within five miles, there are 8 other public schools. On composite proficiency, Ruth Grimes Elementary comes 2nd of 6 in the immediate cluster, above the nearby-schools average of 30.2%.

Ruth Grimes Elementary operates from a commuter-belt location.

Five-year trend. Over the past 7-year window, the student count ticked down 4%: 628 students in 2018 compared to 606 in 2025. Over the same period, the Hispanic share edged up from 86% to 93%. Class-load math has narrowed: from 23.3:1 in 2018 to 21.6:1 in 2025.

On allk12, members of the Ruth Grimes Elementary community share and discuss school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.