57078 is zip code located in Yankton, South Dakota. The population is 18,699, making 57078 the largest zipcode in Yankton and the largest in Yankton County.
There are 6 public schools in 57078 with an average Homefacts rating of B. The total crime rate for Yankton is moderate , and there are 53 registered sex offenders residing in the zip code 57078. Unemployment in 57078 is low.