55309 is zip code located in Big Lake, Minnesota. The population is 18,465, making 55309 the largest zipcode in Big Lake and the 2nd largest in Sherburne County.
There are 4 public schools in 55309 with an average Homefacts rating of B. , and there are 0 registered sex offenders residing in the zip code 55309. Unemployment in 55309 is low.