Lake Casa Blanca has provided water recreation for the south Texas area for more than 50 years. The lake has 1,680 surface acres and is an impoundment of Chacon Creek, a tributary of the Rio Grande.
Webb County and the city of Laredo originally ran this park. After signing a 50-year lease, the state opened the park as Lake Casa Blanca International State Park in 1991. The 525-acre park sits on the eastern city limit of Laredo.