Sundown Elementary School is located at 20100 Saums Road, Katy, TX 77449. The campus serves students in pre-kindergarten through grade 5. Enrollment stands at 752 students as of the 2023–24 school year. The student-teacher ratio is 11:1. The student body is 44% female and 56% male. State testing shows that 32% of students reached proficiency in math and 43% in reading. Sundown Elementary operates as a public non-charter school within Katy Independent School District, offering a Gifted and Talented program and maintaining one full-time school counselor — serving a student body that is 92% minority enrolled with 89% economically disadvantaged and 55% enrolled in bilingual or ELL programming, the highest bilingual enrollment rate among the 12 schools in this group. Sundown Elementary serves a defined neighborhood attendance boundary in the Saums Road residential corridor of Katy under Katy ISD's PK–5 campus structure. Homes surrounding the campus commonly list near $350,000 based on current Katy area market data. Holding the most favorable student-teacher ratio in this 12-school group at 11:1, Sundown stands among the best elementary schools in Texas for high-need public campuses with individualized instruction capacity and intensive bilingual programming in the Katy TX school district.