Valley City is a city in Barnes County, North Dakota. It is the county seat of Barnes County. The population was 6,585 during the 2010 census, making it the thirteenth largest city in North Dakota.
The city is known for its many bridges over the Sheyenne River including the Hi-Line Railroad Bridge. These bridges have earned it the distinction of being called the "City of Bridges". The city is also the home of Valley City State University and the home for the North Dakota High School Activities Association (NDHSAA).
Valley City was originally called Worthington, and under the latter name was laid out in 1874 when the railroad was extended to that point. The present name is for the city's location in the valley of the Sheyenne River. A post office was established under the name Worthington in 1874, and has continued to operate under the name Valley City since 1878. A Carnegie Library opened in 1903, through the efforts of the "Tuesday Club," a local women's organization