San Juan County lies in Utah and occupies a vast portion of the state's southeastern corner. It is one of Utah's most remote and geographically varied counties. According to the 2010 census, the county had a population of 14,746; communities are spread widely, producing a low population density. The county seat is Monticello, a small town that serves as the regional center for services and government.

Geography and notable features

Topography ranges from high mesas and sandstone cliffs to winding river canyons. The county includes the Four Corners area and contains stretches of the San Juan River and tributary canyons. Part of the county is in southeastern Utah, where many of the state's iconic red-rock formations and archaeological sites are found.

National parks and monuments, scenic drives, and backcountry routes draw visitors. Well-known landmarks and protected areas within or adjacent to the county include areas famed for their natural bridges, cliff dwellings, and sweeping desert vistas—qualities that support a significant tourism and outdoor recreation economy.

History and communities

Long inhabited by Indigenous peoples, the county is rich in Native American history and continues to include significant Navajo and Ute cultural presence. Euro-American settlement expanded in the 19th and early 20th centuries with ranching and small towns such as Blanding, Bluff, and Monticello becoming local hubs. Archaeological sites document millennia of human occupation in the canyonlands.

Economy and recreation

Local livelihoods rely on a mix of tourism, public lands management, agriculture and ranching, and local services. Outdoor recreation—hiking, river running, archeology tourism, and scenic photography—accounts for much of the visitor activity. The rugged landscape also raises unique challenges for transportation, infrastructure and provision of services.

Distinctive facts

  • San Juan County is the largest county by area in Utah, notable for its remote, sparsely settled character.
  • It contains part of the Four Corners region where four states meet—a rare geographic point in the United States.
  • The county's combination of natural and cultural resources makes it a focus for conservation, tourism, and Indigenous heritage preservation.