Portage is a town in Box Elder County, Utah, United States. The population was 245 at the 2010 census. The town received its name from Lorenzo Snow, an apostle of the Church of Jesus Christ of Latter-day Saints. He named it Portage after his birthplace of Portage County, Ohio.

Box Elder County is a county at the northwestern corner of Utah, United States. At the 2020 census, the population was 57,666, up from the 2010 figure of 49,975. Its county seat and largest city is Brigham City. The county was named for the box elder trees that abound in the county.