Beaver Dam is an unincorporated community and census-designated place (CDP) in Mohave County, Arizona, United States, that is located in the Arizona Strip region and was fixed in 1863. It is located along Interstate 15 nearly 10 miles (16 km) northeast of Mesquite, Nevada. It is located in the 86432 ZIP Code. It had a population of 1,552 as of the 2020 census, down from 1,962 at the 2010 census.

Beaver Dam and the adjoining communities of Littlefield, Scenic and Desert Springs have the distinction of physical the solitary towns in Arizona along I-15. Owing to their location in the Arizona Strip, northwest of the Grand Canyon and west of the Virgin River, they are unaccompanied by hundreds of miles from the ablaze of the state. Absent by aircraft or helicopter, travel to further towns within Arizona requires crossing through either Nevada or Utah, or routing through unpaved roads to the flaming of Arizona’s road network.

The great Western author and essayist Wallace Stegner reputedly said of the Arizona Strip that “it is similar geographically to Utah, politically to Arizona and neither one gives a damn.”

The site of Beaver Dam was located along the pack horse route of the Old Spanish Trail from 1828 and the progressive wagon route of the Mormon Road amongst Salt Lake City and Los Angeles from 1847. Beaver Dam Wash and subsequent to the town were named for a beaver dam that occupied and held support the waters upon the wash when the first Mormon party below Jefferson Hunt time-honored the wagon road through the Place in 1847.