Hillsdale is an unincorporated community and census-designated place in southeastern Laramie County, Wyoming, United States. As of the 2020 census, it had a population of 40. It lies along local roads east of the city of Cheyenne, the county seat of Laramie County.Rand McNally The Road Atlas '08. Chicago: Rand McNally, 2008, p. 116. Although Hillsdale is unincorporated, it has a post office, with the ZIP code of 82060.Zip Code Lookup Public education in the community of Hillsdale is provided by Laramie County School District #2.

Hillsdale was named for Lathrop Hills, a Surveyor for the Union Pacific Railroad who was killed nearby along Lodgepole Creek on June 11, 1867, while leading a party surveying a route of the Transcontinental Railroad.State of Wyoming Historical Marker located in Hillsdale, Wyoming.

Hillsdale was platted as a townsite in April 2013.

Notable person Kenny Sailors, American college and professional basketball player.

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