03431 is zip code located in Keene, New Hampshire. The population is 25,388, making 03431 the largest zipcode in Keene and the largest in Cheshire County.
There are 9 public schools in 03431 with an average Homefacts rating of B+. The total crime rate for Keene is low , and there are 35 registered sex offenders residing in the zip code 03431. Unemployment in 03431 is low.