direct comparison was not possible until the national census in 2010). Religion Like many other Rust Belt and midwestern cities, Catholics make up Rockford's largest religious group. According to 2010 figures, 20% of Winnebago County residents are Catholic, 19% are Evangelical, 10% are Mainline Protestant and 48% belong to a non-listed faith or have no religion. The Roman Catholic Diocese of Rockford, several large evangelical and non-denominational churches, and several Lutheran and other Mainline Protestant congregations serve Rockford's Christian community. Rockford's Jewish community is served by a synagogue, the Muslim community by a mosque, the Sikhs by a temple, and its Buddhist community is served by two houses of worship. Law and government Since the creation of Winnebago County in 1836, Rockford has served as its county seat. Rockford is the largest Dillon's Rule municipality in Illinois, having revoked home rule in 1983. Along with a mayor (elected every four years), the Rockford City Council consists of 14 alderman (elected every 4 years), with the city divided into 14 wards. In a fashion similar to other cities its size (or larger), local government is split into executive and legislative branches. The mayor of Rockford is chosen in a general election every four years. The Rockford City Council consists of 14 aldermen, individually elected from each ward in the city. The council, as of August 2021, consists of: Township In contrast to other large cities in Illinois, Rockford is within a single township. By area and population, Rockford Township is the largest township in Illinois. Operating separately from the city of Rockford, the township performs civil services for several unincorporated areas of the city, as well as for other areas of the township outside of city limits. Economy Largest employers As of January 2017, the ten largest employers in Rockford, Illinois are: Other industry Mrs. Fisher's, also known as Mrs. Fishers Potato Chips, a regional manufacturer of potato chips founded in Rockford, is a recognized brand name of potato chips in parts of the Midwestern United States. Since 1923, Rockford has been home to Kegel Harley-Davidson; owned by the same family since 1912, it is the oldest family-owned Harley-Davidson franchise in existence. Transportation Roads and highways By highway, Rockford is linked by highway to Wisconsin (Madison, Milwaukee), Iowa (Dubuque), and many parts of Illinois. In the past 30 years, the centralized location of the region has worked to an advantage in