94558 is zip code located in Napa, California. The population is 66,743, making 94558 the largest zipcode in Napa and the largest in Napa County.
There are 21 public schools in 94558 with an average Homefacts rating of B-. The total crime rate for Napa is moderate , and there are 56 registered sex offenders residing in the zip code 94558. Unemployment in 94558 is moderate.