61856 is zip code located in Monticello, Illinois. The population is 7,219, making 61856 the largest zipcode in Monticello and the largest in Piatt County.
There are 4 public schools in 61856 with an average Homefacts rating of A-. The total crime rate for Monticello is low , and there are 0 registered sex offenders residing in the zip code 61856. Unemployment in 61856 is moderate.