LaMoure is a city in LaMoure County, North Dakota, United States. The population was 889 at the 2010 census. It is the county seat of LaMoure County.LaMoure was founded in 1882 and was named after Judson LaMoure, a territorial legislator.LaMoure was one of eight global transmission sites of the Omega Navigation System until its closure on September 30, 1997. The station is now used for VLF communication purposes of the US Navy.