Mason, OH

Mason is a southwestern Warren County city about 22 miles north of downtown Cincinnati. Its 2020 population was 34,792. Cintas and Luxottica Retail have headquarters here, while Procter & Gamble operates a business center in the city. Kings Island and the Lindner Family Tennis Center, host of the Cincinnati Open, are also in Mason. Seven municipal parks cover about 300 acres, and the 199,000-square-foot Mason Community Center opened in 2003. At the municipal center, the Mason Veterans Memorial has ten pillars representing major U.S. conflicts, with their heights scaled to casualties; Neil Armstrong was the guest of honor at its 2003 dedication. Sinclair Community College has operated a Mason campus since 2007.