Alvin is a city in the U.S. state of Texas within the Houston-The Woodlands-Sugar Land metropolitan area and Brazoria County. As of the 2020 U.S. Census, the city population was 27,098. Alvin's claim to fame is Baseball Hall of Famer Nolan Ryan, who moved with his family to the city in 1947 as an infant and lived there until he moved to Round Rock in 2003. The Nolan Ryan Museum is in the Nolan Ryan Foundation and Exhibit Center on the campus of Alvin Community College.