Marion County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 9,725. Its county seat is Jefferson. Marion County is in East Texas and is named for Francis Marion, the Revolutionary War general from South Carolina who was nicknamed the "Swamp Fox".
Marion County Courthouse in Jefferson
Entering Marion County from Louisiana along State Highway 49
Jefferson is a city and county seat of Marion County, Texas, in Northeast Texas. It has population of 1,875 as of the 2020 United States census.
The Old Post Office in Jefferson