McAllen in Top 10 of Most Affordable Cities for Working Adults, Best Places to Live in TexasAccording to the website, McAllen is highlighted as a bustling city in the Rio Grande Valley of South Texas. With plenty of parks, restaurants and local attractions, including the largest single-story library in the county and of course, home to Quinta Mazatlán World Birding Center, there’s a lot to explore and enjoy in McAllen. McAllen residents also spend less than the national media sale price on home purchases, along with expenses like food, transportation and health care.