Porterfield is a town in Marinette County, Wisconsin, United States.

The unincorporated communities of Bagley Junction, Miles, Porterfield, Rubys Corner, and Walsh are located in the town.

The Town of Porterfield was separated from the original two townships in the county, Marinette and Peshtigo, on March 26, 1887.

Porterfield is home to the annual Porterfield Country Music Festival, a weekend of open-air concerts held every summer which draws both local and nationally known country music artists such as Johnny Cash,[6] Charlie Daniels, Crystal Gayle,[7] Merle Haggard,[8] and Loretta Lynn.

[9] Artists who appeared at the 2005 Porterfield Country Music Festival included: Juice Newton, The Oak Ridge Boys, SHeDaisy, Glen Campbell, Sugarland, and Trick Pony.