Sherrill is a town in Dubuque County , Iowa , United States . As of the 2000 U.S. Census , it had a population of 186. The town was named for two brothers, Adam and Isaac Sherrill, and was originally called Sherrill's Mound or Mount, since the town is sited at the base of a prominent hill. In 1856 , Peter Fries, an Austrian immigrant , built a large, stone inn at the main crossroads of the town. It was popular with newlyweds, and Jesse James and his gang were reported to have stayed there prior to their famous raid on Northfield, Minnesota . The structure has survived and is now a private residence. Sherrill and the surrounding rural district received large numbers of German immigrants in the 19th century . German Catholic ( Ss. Peter and Paul ), German Lutheran (St. Matthew), German Methodist , and German Evangelical churches were founded and remain active. Sherrill was one of ten "Beer Towns" incorporated in Dubuque County in 1933, to ensure that the town's taverns could serve beer, under a possibly miinterpretation of Iowa law that licenses to dispense beer could only be granted to premises inside incorporated places. Sherrill's post office was established in 1858, with Peter Fries as postmaster . Its Zip Code is 52073. The town of Sherrill, Iowa, as seen from the mound. The spire is Ss. Peter and Paul Catholic Church. Photo by Joe Schallan, Oct. 22, 2003.