Layton is a city in Davis County, Utah, United States. It is part of the Ogden-Clearfield Metropolitan Statistical Area. As of the 2020 census, the city had a population of 81,773, with 2022 estimates sh…Layton is a city in Davis County, Utah, United States. It is part of the Ogden-Clearfield Metropolitan Statistical Area. As of the 2020 census, the city had a population of 81,773, with 2022 estimates showing a slight increase to 84,665. Layton is the most populous city in Davis County and the ninth most populous in Utah.