Yorktown is a city in DeWitt County, Texas, United States. The population was 1,810 at the 2020 census. Yorktown is located in southwestern …Yorktown is a city in DeWitt County, Texas, United States. The population was 1,810 at the 2020 census. Yorktown is located in southwestern DeWitt County at 28°59′00″N 97°30′09″W / 28.983196°N 97.502415°W. State Highways 72 and 119 intersect on the western side of town. Highway 72 leads northeast 16 miles to Cuero and southwest 25 miles to Kenedy, while Highway 119 leads northwest 35 miles to Stockdale and south 24 miles to Goliad.