Harlingen, TX, United States

With a population of just 71,829, Harlingen is a small city in the Rio Grande Valley, known for its warm, humid climate and agricultural economy. The local bureaucracy can be a persistent headache, with the Immigration Court and Border Patrol presence adding an extra layer of red tape. On the plus side, Harlingen boasts a diverse array of healthcare options, including the Valley Baptist Medical Center, a Level II Trauma Center. Overall, this sleepy Texan town is best suited for retirees looking to escape northern winters and those drawn to the region's rich Hispanic culture.