Spencer is located in Clay County, IA. The population is 11,204, making Spencer the largest city in Clay County.
There are 5 public schools in Spencer with an average Homefacts rating of B. The total crime rate for Spencer is low, and there are 17 registered sex offenders residing in the city. Unemployment in Spencer is moderate and the median home sales price is $0. Detailed and up-to-date Spencer property reports are available for any property address.