ZIP Code 02421 - Lexington Massachusetts

ZIP Code 02421 is located in Lexington Massachusetts. Portions of 02421 are also in Lexington (town) and Lincoln. 02421 is entirely within Middlesex County. Regionally, it is located in Metro Boston.

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ZIP Code 02421 Quick Stats

ZIP Code NameLexington
Primary CountyMiddlesex County
ZIP Code TypeStandard
Population (2022)17,865
Area Code(s)339 / 781
Current Time

ZIP Code 02421 Map

02421 Demographics

02421 can be classified socioeconomically as Upper Middle Class class compared to other ZIP Codes in Massachusetts based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 02421 is White. The majority race/ethnicity attending public schools in 02421 is White. The current unemployment level in 02421 is 2.8%.

Population Growth Rate0.13%
Population Density1,839 People per Square Mile
Total Households6,456
Percentage High Income Households30.9%
Median Houshold Income (2021)$191,140
Average Adjusted Gross Income (2020)$312,140
Current Unemployment Rate (February 2024)2.8%
Majority Race/EthnictyWhite - 62.54%
Public School Majority Race/EthnictyWhite - 46.97%

02421 Race/Ethnicty Breakdown

Native American70.04%
Hawaiian/Pac. Islander00%

02421 Public School Race/Ethnicty Breakdown

Native American70.14%
Hawaiian/Pac. Islander10.02%

02421 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College2502.11%
Bachelor Degree3,36028.39%
High School Diploma1,0068.5%
No High School Diploma820.69%
GED or Alternate1110.94%
1 or More Years of College6845.78%
Associates Degree3502.96%
Masters Degree3,31027.97%
Professional Degree9417.95%
Doctorate Degree1,74214.72%

02421 Geography

Adjacent ZIP Codes
Cities/Towns in 02421
RegionMetro Boston
Metropolitan/Micropolitan Stat AreaBoston-Cambridge-Newton, MA-NH
Time ZoneEastern Standard Time
IANA TimezoneAmerica/New_York
Area10 Square Miles

02421 Politics

US Congressional Districts in 02421
Massachusetts State Senate Districts in 02421
Massachusetts State House of Representatives Districts in 02421

02421 Weather and Climate Data

Plant Hardiness ZoneZone 6a: -10F to -5F
Average First Frost DateOctober 1 - 10
Average Last Frost DateMay 1 - 10
Koppen-Geiger Climate ZoneDfb - Humid Continental Mild Summer, Wet All Year
Ecoregion59d - Boston Basin

02421 Annual Climate Data

Avg Min Temp (°F)16182736465561595140322239
Avg Max Temp (°F)35384758697883817362514059
Avg Precip (In.)

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