37031 is zip code located in Castalian Springs, Tennessee. The population is 3,948, making 37031 the largest zipcode in Castalian Springs and the 8th largest in Sumner County.
There are 0 public schools in 37031 with an average Homefacts rating of NA. , and there are 9 registered sex offenders residing in the zip code 37031. Unemployment in 37031 is low.