Williamsville is located in Sangamon County, IL. The population is 1,530.
There are 3 public schools in Williamsville with an average Homefacts rating of A. The total crime rate for Williamsville is very low , and there are 0 registered sex offenders residing in the city. Unemployment in Williamsville is moderate and the median home sales price is $0. Detailed and up-to-date Williamsville property reports are available for any property address.
Cities near Williamsville include Williams Township, Hurlbut Township and Sherman.