Post Oak Bend is a town in Kaufman County, Texas, United States. Its population was 683 in 2020.
Post Oak Bend is located in central Kaufman County. It is north of Kaufman, the county seat, and south of Terrell.
According to the United States Census Bureau, the town has a total area of , of which , or 0.18%, are covered by water.
As of the 2020 United States census, 683 people, 174 households, and 138 families resided in the town.
Post Oak Bend is served by Kaufman Independent School District. The Kaufman ISD schools are in the city of Kaufman.