42171 is zip code located in Smiths Grove, Kentucky. The population is 6,811, making 42171 the largest zipcode in Smiths Grove and the 4th largest in Warren County.
There are 2 public schools in 42171 with an average Homefacts rating of A-. The total crime rate for Smiths Grove is very low , and there are 20 registered sex offenders residing in the zip code 42171. Unemployment in 42171 is moderate.