Rich County is a county in the U.S. state of Utah. As of the 2020 United States Census, the population was 2,510, making it the third-least populous county in Utah. Its county seat is Randolph, and the largest town is Garden City. The county was created in 1864. It was named for an early LDS apostle, Charles C. Rich.

Randolph is a town in Rich County, Utah, United States and as of the 2010 census, the town population was 464. It is the county seat of Rich County. Randolph had the highest percentage of people of any city in the country vote for George W. Bush in the 2004 election, at 95.6% Randolph's municipal classification was officially changed from a city to a town on January 1, 2009. The controversial WWASPS boarding school Old West Academy is located just outside Randolph.