Calio, North DakotaCalio, community ancestry & family history research ... City. Calio is in Cavalier County. The county seat is Langdon. Major ancestry groups reported by Calio …
Calio, North Dakota - City | FacebookCalio, North Dakota - Description: Calio is a city in Cavalier County, North Dakota in the United States. The population was 22 at the 2010 census. Calio was …