J. Marion Roynon Elementary

J. Marion Roynon Elementary serves 804 students in kindergarten through fifth grade in San Dimas, offering a strong academic foundation in this well-established Los Angeles County community. With 33 full-time equivalent teachers maintaining a 24.4:1 student-teacher ratio, the school has earned recognition as one of California's higher-performing elementary schools, ranking in the 86th percentile statewide at #1331 out of 9566 schools.

The school demonstrates solid academic achievement with 69% of students performing at proficient or above levels in English Language Arts and 65% reaching proficiency in mathematics. These results reflect the school's commitment to educational excellence and have contributed to its impressive 7.9 out of 10 MySchoolScout rating and 8.9 academic score. Students at J.

Marion Roynon Elementary benefit from being part of a supportive community where 38% of residents hold bachelor's degrees or higher and the median household income reaches $101,466. The neighborhood's low poverty rate of 9.4% and median home values of $714,400 indicate a stable, family-oriented environment that values education. The school sits in San Dimas's large suburban setting, providing students with the advantages of a close-knit community feel while maintaining access to the broader educational and cultural opportunities of the greater Los Angeles area.

The student-teacher ratio at J. Marion Roynon Elementary is 24.4:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.