52556 is zip code located in Fairfield, Iowa. The population is 12,679, making 52556 the largest zipcode in Fairfield and the largest in Jefferson County.
There are 4 public schools in 52556 with an average Homefacts rating of B-. , and there are 14 registered sex offenders residing in the zip code 52556. Unemployment in 52556 is low.
Zip codes within Fairfield include 52557.