Grulla is a small city located in Starr County, Texas, with a population of approximately 1,600 people. The climate in Grulla is classified as a humid subtropical climate, with hot summers and mild winters. The area is also prone to occasional flooding due to the Rio Grande River and its tributaries. The hydrology constituents of the area are heavily influenced by agriculture, with irrigation canals and drainage ditches prevalent throughout the region. Outdoor recreation opportunities in Grulla include hunting, fishing, and birdwatching, with several wildlife management areas and parks located nearby. The area also boasts a rich cultural history, with several historic sites and museums showcasing the local history and heritage.