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ZIP Code Database - Facts & Stats

Data Last Updated: December 1, 2022

ZIP Codes for City of Lexington, MA

Lexington, MA Covers 2 ZIP Codes

ZIP CodeTypeCountyPopulation
ZIP Code 02420StandardMiddlesex14,052
ZIP Code 02421StandardMiddlesex17,342

Timezone(s):Eastern (GMT -05:00)
Population:31,394 (More Details)
Male Population:14,904
Female Population:16,490
Median Age:46
ZIP Codes:2
Area Codes:2
Total Area:847 square miles (county)
Land Area:818 square miles (county)
Water Area:29 square miles (county)

Lexington, MA Demographic Information *

Total population31,394
Male population14,904
Female population16,490
Median age (years)45.6
White Population23,705
Black Population473
Indian Population25
Asian Population6,240
Hawaiian Population3
Hispanic Population713
Median age (Male)44.8
Median age (Female)46.4
Total households11,530
Family households (families)8,807
Average household size2.68
Average family size3.12
Total housing units12,019
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 12/1/2022],
  2. Internal Data Creation [Last Updated: 12/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],