03878 is zip code located in Somersworth, New Hampshire. The population is 11,816, making 03878 the largest zipcode in Somersworth and the 4th largest in Strafford County.
There are 4 public schools in 03878 with an average Homefacts rating of D+. The total crime rate for Somersworth is low , and there are 22 registered sex offenders residing in the zip code 03878. Unemployment in 03878 is low.