Chandler is a city in Henderson County, Texas, United States, at the northern end of Lake Palestine. Its population was 3,275 at the 2020 …Chandler is a city in Henderson County, Texas, United States, at the northern end of Lake Palestine. Its population was 3,275 at the 2020 census, up from 2,734 at the 2010 census. Chandler is located in the northeast corner of Henderson County. Texas State Highway 31 runs through the center of Chandler, leading east 11 miles to Tyler and southwest 24 miles to Athens, the Henderson County seat.