Living in Yorkville Located in Kendall County, the United City of Yorkville has all the characteristics of small-town charm near big city amenities. We're located approximately 50 miles west of Chicago and easily accessible from all directions. The intersections of Illinois Highways 34, 47, 71 and 126, plus access to I-88 to the north, I-80 to the south and I-55 to the east has made Yorkville an excellent location for new residential and commercial development. Centrally located, Yorkville is also the seat of Kendall County.Yorkville, is a city with a current population of approximately 15, 240 residents. According to the latest figures from the U.S. Census Bureau, Yorkville is located in the fastest growing county in Illinois, and the fastest growing county in the country. It is predicted that Yorkville's population will double in size by 2012.It is because of the city's quaint charm and easy accessibility that many families are calling Yorkville their home. Our safe and inviting community offer residents many amenities including educational and recreational opportunities. Cycling, canoeing, hiking and community events are summertime favorites in the United City of Yorkville. We are a community that embraces our past but are also looking forward to our future.