Indio (Spanish for "Indian") is a city in Riverside County, California, United States, in the Coachella Valley of Southern California's Colorado Desert region. It lies 23 miles (37 km) east of Palm Springs, 75 miles (121 km) east of Riverside, 127 miles (204 km) east of Los Angeles, 148 miles (238 km) northeast of San Diego, 250 miles (400 km) west of Phoenix, and 102 miles (164 km) north of Mexicali, Mexico. The population was 89,137 in the 2020 United States Census, up from 76,036 at the 2010 census, an increase of 17%. Indio is the most populous city in the Coachella Valley, and was formerly referred to as the Hub of the Valley after a Chamber of Commerce slogan used in the 1970s. Indio is now nicknamed the City of Festivals, a reference to the numerous cultural events held in the city, most notably the Coachella Valley Music and Arts Festival. Indio is the principal city of an urban area defined by the United States Census Bureau that is located in the Coachella Valley: the Indio–Palm Desert–Palm Springs CA urban area had a population of 361,075 as of the 2020 census, making it the 114th largest in the United States.