The community of San Luis Rey is located approximately 42 miles north of San Diego near the city of Oceanside, California. The San Luis Rey Mission Expressway, also known as California Route 76, runs through the neighborhood.

San Luis Rey was a Franciscan establishment, and the Mission San Luis Rey site was dedicated in 1798 when 1,000 adobe bricks were laid for the community's first permanent structure.

There are two parks in San Luis Rey: Ivey Ranch and Fireside. Ivey Ranch is the only park of its kind in the state and provides individuals in the neighborhood with recreational and educational opportunities that are accessible to able-bodied and disabled people. There is a summer camp at Ivey Ranch for children, and during the school year little ones can head to the park for afterschool programs. Ivey Ranch is also home to a community garden.

Fireside Park has two play structures for children with slides, monkey bars, bridges and multiple levels through which little ones can climb.

Educational institutions in San Luis Rey include Louise Foussat Elementary School, Nichols Elementary School, Martin Luther King, Jr. Middle School, Old Mission Montessori School and Cesar Chavez Middle School.