56557 is zip code located in Mahnomen, Minnesota. The population is 2,786, making 56557 the largest zipcode in Mahnomen and the largest in Mahnomen County.
There are 3 public schools in 56557 with an average Homefacts rating of C-. , and there are 1 registered sex offenders residing in the zip code 56557. Unemployment in 56557 is moderate.