57520 is zip code located in Agar, South Dakota. The population is 131, making 57520 the largest zipcode in Agar and the 2nd largest in Sully County.
There are 0 public schools in 57520 with an average Homefacts rating of NA. , and there are 1 registered sex offenders residing in the zip code 57520. Unemployment in 57520 is low.