02421 is zip code located in Lexington, Massachusetts. The population is 17,600, making 02421 the largest zipcode in Lexington.
There are 6 public schools in 02421 with an average Homefacts rating of A. The total crime rate for Lexington is low , and there are 2 registered sex offenders residing in the zip code 02421. Unemployment in 02421 is low.
Zip codes within Lexington include 02420.