Portsmouth is located in Shelby County, IA. The population is 232, making Portsmouth the 7th largest city in Shelby County.
There are 0 public schools in Portsmouth with an average Homefacts rating of NA. The total crime rate for Portsmouth is low , and there are 2 registered sex offenders residing in the city. Unemployment in Portsmouth is low and the median home sales price is $0. Detailed and up-to-date Portsmouth property reports are available for any property address.
Cities near Portsmouth include Cass Township, Cass Township and Tennant.