Eureka is located in Winnebago County, WI. The population is 157, making Eureka the 6th largest city in Winnebago County.
There are 0 public schools in Eureka with an average Homefacts rating of NA. The total crime rate for Eureka is low, and there are 1 registered sex offenders residing in the city. Unemployment in Eureka is low and the median home sales price is $0.