Spring City is a town in Rhea County, Tennessee, United States.

The original location now lies at the bottom of a nearby section of Watts Bar Lake.

Spring City thrived as a railroad shipping hub during the late 19th and early 20th centuries.

Its first railroad depot, a simple wooden building constructed in 1879, burned in 1892, and was replaced by a larger one.

[6] The city received an economic boost in 1942 with the Tennessee Valley Authority's completion of Watts Bar Dam and its associated reservoir southeast of the town.

On August 22, 1955, 11 schoolchildren were killed, and many others injured, when their school bus was struck by a 103-car freight train at a track crossing in Spring City.

A lengthy cleanup followed, where both track crossings in town had to be closed while repairs were made and debris cleared.

As of the 2020 United States census, there were 1,949 people, 935 households, and 537 families residing in the town.