Thornburg is an unincorporated community in Smith County, Kansas, United States.
[1] Thornburg briefly had a post office, from 1902 until 1904.
[2] Thornburg School, a one-room schoolhouse, was built in 1880 and remained in use until its closing in 1963.
The original structure still stands.
This article about a location in Smith County, Kansas is a stub.