Ada, Oklahoma
Ada is a city in and the county seat of Pontotoc County, Oklahoma, United States. The population was 16,810 at the 2010 census, an increase of 7.1 percent from the figure of 15,691 in 2000. The city was named for Ada Reed, the daughter of an early settler, and was incorporated in 1901. Ada is home to East Central University, and is the headquarters of the Chickasaw Nation. Ada is an Oklahoma Main Street City, an Oklahoma Certified City, and a Tree... Show more City USA member.