Norwalk is located in Polk County, IA. The population is 9,012, making Norwalk the 9th largest city in Polk County.
There are 4 public schools in Norwalk with an average Homefacts rating of A-. The total crime rate for Norwalk is very low , and there are 7 registered sex offenders residing in the city. Unemployment in Norwalk is moderate and the median home sales price is $0. Detailed and up-to-date Norwalk property reports are available for any property address.