Tyler is a town in the U.S. state of Texas, and Smith County's largest town and county seat. IT has an estimated population of over 105,000. The city is named after U.S. 10th President John Tyler. The international campaign of the Adopt-a-Highway began at Tyler in 1985. Tyler is regarded as America's "Rose City," a term from a long history of rose growth, growing, and processing. This is the home of the United States' largest rose garden. As the main commercial, educational, political, medical, and cultural center of northeast Texas and Smith County. Tyler is 54 miles large.