
Chandler is a city in Maricopa County, Arizona, United States, and a suburb in the Phoenix-Mesa-Chandler Metropolitan Statistical Area. It is bordered to the north and west by Tempe, to the north by Mesa, to the west by Phoenix, to the south by the Gila River Indian Community, and to the east by Gilbert. As of the 2020 census, the population of Chandler was 275,987, up from 236,123 at the 2010 census.
In 1891, Dr. Alexander John Chandler, the first veterinary surgeon in Arizona Territory, settled on a ranch south of Mesa, studying irrigation engineering. By 1900, he had acquired 18,000 acres of land, and began drawing up plans for a townsite on what was then known as the Chandler Ranch. The townsite office opened on May 16, 1912.