Colchester is located in Mcdonough County, IL. The population is 1,274, making Colchester the 3rd largest city in Mcdonough County.
There are 2 public schools in Colchester with an average Homefacts rating of B-. The total crime rate for Colchester is very low , and there are 0 registered sex offenders residing in the city. Unemployment in Colchester is very high and the median home sales price is $0. Detailed and up-to-date Colchester property reports are available for any property address.
Cities near Colchester include Colchester Township, Tennessee and Tennessee Township.