The city of Los Fresnos is located in Cameron County, Texas. Los Fresnos is part of the Brownsville–Harlingen Metropolitan Statistical Area. The region flourished in farming due to the existence of fertile, irrigated land and long growing season in the Rio Grande Valley. The chief crops are sugarcane, cotton, grapefruit orchards, orange and grains. Los Fresnos is served by the Los Fresnos Consolidated Independent School District.