Plantersville is a city in Grimes County, Texas, United States. It was incorporated as a city on May 15, 2017. It is located at the junction of Texas State Highway 105, Farm to Market Road 1774, and the Atchison, Topeka and Santa Fe Railway in the southeastern part of the county. It is adjacent to the city of Todd Mission. As of the 2020 census, the population was 464.