Blanding is a city in San Juan County, Utah, United States. The population was 3,375 at the 2010 census, making it the most populated city in San Juan County. It was settled in the late 19th century by Mormon settlers, predominantly from the famed Hole-In-The-Rock expedition. Economic contributors include mineral processing, mining, agriculture, local commerce, tourism, and transportation.

San Juan County is a county in the southeastern portion of the U.S. state of Utah. As of the 2020 United States Census, the population was 14,518. Its county seat is Monticello, while its most populous city is Blanding. The Utah State Legislature named the county for the San Juan River, itself named by Spanish explorers.