Boise City (ˈbɔɪs ) is a city in and the county seat of Cimarron County, in the Panhandle of Oklahoma, United States. The population was 1,166 at the 2020 census, a decline of 7.9 percent from 1,266 in 2010.
Boise City was founded in 1908 by developers J. E. Stanley, A. J. Kline, and W. T. Douglas (all doing business as the Southwestern Immigration and Development Company of Guthrie, Oklahoma) who published and distributed brochures promoting the town as an elegant, tree-lined city with paved streets, numerous businesses, railroad service, and an artesian well. They sold 3,000 lots to buyers who discovered, on their arrival, that none of the information in the brochure was true. In addition to using false publicity, the three men did not have title to the lots they sold.
Stanley and Kline were convicted of mail fraud and sent to Leavenworth Federal Penitentiary. Stanley and Kline served two-year terms in the penit