Cheyenne, OK is a city located in Roger Mills County, Oklahoma and has a land area of 387.54 square miles (1,003.72 km2). The water area for the city is 2.66 square miles or 6.89 km2. There is one unique zip code in Cheyenne, Oklahoma and it is 73628. The area code(s) for Cheyenne is 580.
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