16121 is zip code located in Farrell, Pennsylvania. The population is 5,010, making 16121 the largest zipcode in Farrell and the 7th largest in Mercer County.
There are 2 public schools in 16121 with an average Homefacts rating of D. , and there are 9 registered sex offenders residing in the zip code 16121. Unemployment in 16121 is very high.