San Luis, Arizona

San Luis
Border wall between the United States and Mexico in San Luis
Location of San Luis in Yuma County, Arizona.
San Luis
Location in the United States
Coordinates: 32°29′35″N 114°44′26″W / 32.49306°N 114.74056°W / 32.49306; -114.74056
Country United States
State Arizona
CountyYuma
Founded1930
Incorporated1979
Government
 • TypeCouncil-Manager
 • BodySan Luis City Council
Area
 • Total
34.10 sq mi (88.32 km2)
 • Land34.03 sq mi (88.13 km2)
 • Water0.073 sq mi (0.19 km2)  0.11%
Elevation
167 ft (51 m)
Population
 (2020)
 • Total
35,257
 • Density1,036.2/sq mi (400.08/km2)
Time zoneUTC-7 (MST)
ZIP code
85349, 85336, 85350
Area code928
FIPS code04-63470
GNIS feature ID2411795
Websitewww.sanluisaz.gov

San Luis is a city in Yuma County, Arizona, United States. The population was 35,257 at the 2020 census. It is part of the Yuma Metropolitan Statistical Area. San Luis, located in the southwest corner of the state directly adjacent to Mexico's Federal Highway 2 at San Luis Rio Colorado, was the second fastest-growing city or town in Arizona from 1990 to 2000. According to 2022 Census Bureau estimates, the population of the city is 35,770.