51442 is zip code located in Denison, Iowa. The population is 9,614, making 51442 the largest zipcode in Denison and the largest in Crawford County.
There are 5 public schools in 51442 with an average Homefacts rating of B-. The total crime rate for Denison is very low , and there are 10 registered sex offenders residing in the zip code 51442. Unemployment in 51442 is moderate.