Rio Colorado Elementary School

Located at 1055 N. Main Street, in San Luis, Arizona, Rio Colorado Elementary School is a reasonably sized primary school that enrolls 523 students (grades pre-K through 6), operated by Gadsden Elementary District (4505).

Across the 9 schools in Gadsden Elementary District (4505) (5,196 students total), Rio Colorado Elementary School accounts for its share of the district's footprint.

For racial and ethnic makeup, Rio Colorado Elementary School records that the student body is overwhelmingly Hispanic (98%). By comparison, Yuma County as a whole is about 65% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

On the income-and-resources front, The school currently runs with 21 full-time-equivalent teachers, for a student-teacher ratio near 24.9:1. Statewide, the average ratio sits near 17.0:1, putting Rio Colorado Elementary School higher than the state norm the norm.

Around the school, Yuma County reports that median household income runs about $62,876, 17% of adults hold a bachelor's degree or higher, and the poverty rate sits near 13%. In all, Yuma County runs 89 public schools (combined enrollment of about 38,800 students), of which Rio Colorado Elementary School is one.

The closest other public school is San Luis Pre-School, roughly 0.0 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius.

The school occupies a town-based site.

Trend over the last 7 years. Looking back 7 years, enrollment at Rio Colorado Elementary School has decreased 16%, going from 623 students in 2018 to 523 in 2025. The student-to-teacher ratio pulled in from 31.1:1 in 2018 to 24.9:1 today.

On this page, the feed for Rio Colorado Elementary School typically covers enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.