20121 is zip code located in Centreville, Virginia. The population is 28,381, making 20121 the 2nd largest zipcode in Centreville and the 10th largest in Fairfax County.
There are 5 public schools in 20121 with an average Homefacts rating of A-. , and there are 17 registered sex offenders residing in the zip code 20121. Unemployment in 20121 is low.