Nekoma is a city in Cavalier County, North Dakota, United States. The population was 31 at the 2020 census. There is a large grain elevator…Nekoma is a city in Cavalier County, North Dakota, United States. The population was 31 at the 2020 census. There is a large grain elevator, a bar and two churches, plus homes at Nekoma, and an agricultural service just outside the village boundary. Nekoma was founded in 1905 and is 15 miles south of Langdon.