Boulder Flats is a census-designated place (CDP) in Fremont County, Wyoming, United States. The population was 408 at the 2010 census.

Geography

Boulder Flats is located at (42.908836, -108.799257).

According to the United States Census Bureau, the CDP has a total area of 18.2&nbsp;square miles (47.2&nbsp;km<sup>2</sup>), all land.

Demographics

As of the census