Farmington is a city in Davis County, Utah, United States. It is part of the Ogden–Clearfield, Utah Metropolitan Statistical Area. The population was 18,275 at the 2010 census and was estimated at 22,159 in 2014. It is the county seat of Davis County. Lagoon Amusement Park is located in Farmington.
The city was ranked 12th on Money magazine's "Best Places to Live" index in 2011.