Delavan is located in Walworth County, WI. The population is 8,495, making Delavan the 2nd largest city in Walworth County.
There are 5 public schools in Delavan with an average Homefacts rating of C-. The total crime rate for Delavan is low, and there are 57 registered sex offenders residing in the city. Unemployment in Delavan is low and the median home sales price is $0.