Troy is a city situated in Madison County of Illinois, USA. The main economic activities of Troy include website designing, trucking, tree services, tourism, consulting, engineering, senior services, hospitality, real estate, education, mortgage, masonry, legal services, insurance, home building, financing, cleaning, bookkeeping and book binding and accounting and advertising and ambulance services.
Paul Simon and Bob Turley are the notable residents of Troy. William. W. Jarvis House is an important landmark of this place.