Monticello, UT is a city located in San Juan County, Utah and has a land area of 903.65 square miles (2,340.44 km2). The water area for the city is 0.26 square miles or 0.67 km2. There is one unique zip code in Monticello, Utah and it is 84535. The area code(s) for Monticello is 435.
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