Washam is a census-designated place in Sweetwater County, Wyoming, United States. The population was 51 at the 2010 census. Washam is located at 41°1′26″N 109°45′24″W / 41.02389°N 109.75667°W. According to the United States Census Bureau, the CDP has a total area of 3.13 square miles, all land.
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