Smithfield is a city in Cache County, Utah, United States. The population was 9,495 at the 2010 United States Census, with an estimated population of 12,025 in 2019. It is included in the Logan, Utah–Idaho Metropolitan Statistical Area, and is the second largest city in the area after Logan, the county seat. Smithfield is home to one public high school and three public elementary schools.
Zip Codes in Smithfield, UT that we also serve: 84335