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ZIP code 02421

Lexington, MA · Middlesex County

About ZIP code 02421

  • ZIP code 02421 is in Lexington, Middlesex County, Massachusetts.
  • About 18,080 people live in it, which is 729.5 people per square mile.
  • Time zone: Eastern Standard Time.
  • The middle of the ZIP code is at 42.438, -71.239.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Lexington, MA

ZIP code 02421 is the post office name for Lexington, Middlesex County, MA. 34,295 people live in Lexington. Typical household income is $238,444. A typical home costs $1,203,100.

  • Stronger than most towns on: Long, healthy lives, Home internet and working from home and Walkability.
  • Weaker than most towns on: Cost of living, Pleasant weather for being outdoors and State taxes.

See all figures for Lexington

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ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.