Zip code 02421: Lexington, Massachusetts

Q: What city is zip code 02421?

02421 is assigned to Lexington, Massachusetts. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 02421 in?

02421 is in Middlesex County, Massachusetts.

Q: What is the population of 02421?

About 18,080 people live in 02421, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 02421?

The median household income in 02421 is $227,813.

Q: What zip codes are near 02421?

The closest zip codes to 02421 are 02420, 02451, 01731, 02452, 02475.

Residential delivery areaMiddlesex CountyEastern Time

Population

18,080

Median household income

$228K

U.S. $81K

Median home value

$1.2M

U.S. $333K

Median rent

$2,948/mo

U.S. $1,413

Median age

48.2

U.S. 38.9

Land area

9.6 sq mi

1,889 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 02421

02421 is a suburban zip code in Lexington, Massachusetts (Middlesex County), covering 9.6 sq mi of land. About 18,080 people live here, or 1,889 per square mile. The median resident is 48.2 years old, compared with 38.9 nationally.

The median household earns $227,813 a year, about 2.8× the national median of $80,734. 6.4% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $1,205,700, or 5.3 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 76% of occupied homes are lived in by their owners, and renters pay a median of $2,948 a month.

83% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 31.4 minutes each way, and 38% of workers work from home. The most common jobs among working residents are in management; computer and math (tech); and engineering and science. 41% of households speak a language other than English at home, most often an Asian or Pacific Island language.

How 02421 compares

Sorted from highest to lowest national percentile

Median household income$227,813
99th
StrengthU.S. $80,734 · MA $103,96012th of 503 in MA
Per capita income$112,662
99th
StrengthU.S. $44,673 · MA $57,89718th of 522 in MA
Bachelor's degree or higher83.2%
99th
StrengthU.S. 35.7% · MA 47.3%30th of 521 in MA
Work from home38.4%
99th
U.S. 15.1% · MA 18.6%14th of 520 in MA
Median earnings per worker$146,875
99th
StrengthU.S. $49,666 · MA $62,0953rd of 519 in MA
Tech workers13.5%
99th
U.S. 3.8% · MA 4.9%11th of 520 in MA
Median gross rent$2,948
98th
U.S. $1,413 · MA $1,76211th of 461 in MA
Broadband access98.2%
98th
StrengthU.S. 91% · MA 92.8%58th of 518 in MA
Median home value$1,205,700
97th
U.S. $332,700 · MA $562,10025th of 506 in MA
Median age48.2
93rd
U.S. 38.9 · MA 40149th of 522 in MA
Foreign-born residents37.5%
93rd
U.S. 14.1% · MA 18%19th of 522 in MA
Residents 65 and older22.8%
86th
U.S. 17.2% · MA 17.9%172nd of 522 in MA
Average commute31.4 min
80th
WeaknessU.S. 26.4 min · MA 29.1 min182nd of 504 in MA
Rent-burdened renters58%
77th
U.S. 51.1% · MA 51.8%143rd of 506 in MA
Residents under 1825.4%
77th
U.S. 22% · MA 19.4%49th of 522 in MA
Income inequality (Gini)0.468
75th
U.S. 0.483 · MA 0.489139th of 517 in MA
Homeownership rate75.9%
69th
U.S. 65.2% · MA 62.5%296th of 518 in MA
Diversity index57.2
66th
U.S. 61.4 · MA 52.781st of 522 in MA
Self-employed workers10.1%
60th
U.S. 10% · MA 8.8%223rd of 520 in MA
Population density1,889/sq mi
56th
U.S. 95/sq mi · MA 903/sq mi163rd of 522 in MA
Population18,080
28th
U.S. 334,922,499 · MA 7,044,056144th of 522 in MA
Healthcare workers7.7%
23rd
U.S. 9.7% · MA 10.3%398th of 520 in MA
Poverty rate6.4%
21st
U.S. 12.5% · MA 10%264th of 519 in MA
Veterans3%
15th
U.S. 6.2% · MA 4.3%410th of 522 in MA
Unemployment rate2.4%
9th
StrengthU.S. 5.2% · MA 5.2%431st of 520 in MA
Government workers7%
4th
U.S. 14.5% · MA 12.7%468th of 520 in MA
Uninsured rate1.4%
2nd
StrengthU.S. 8.4% · MA 2.6%323rd of 521 in MA
Housing vacancy1.1%
1st
U.S. 10.1% · MA 8.1%479th of 519 in MA

Measure	02421	Middlesex	MA	U.S.	National percentile	Rank in MA
Median household incomeStrength	$227,813	$130,847	$103,960	$80,734	99th	12th of 503
Per capita incomeStrength	$112,662	$69,556	$57,897	$44,673	99th	18th of 522
Bachelor's degree or higherStrength	83.2%	59.5%	47.3%	35.7%	99th	30th of 521
Work from home	38.4%	24.7%	18.6%	15.1%	99th	14th of 520
Median earnings per workerStrength	$146,875	$73,671	$62,095	$49,666	99th	3rd of 519
Tech workers	13.5%	7.8%	4.9%	3.8%	99th	11th of 520
Median gross rent	$2,948	$2,201	$1,762	$1,413	98th	11th of 461
Broadband accessStrength	98.2%	94.7%	92.8%	91%	98th	58th of 518
Median home value	$1,205,700	$727,800	$562,100	$332,700	97th	25th of 506
Median age	48.2	38.9	40	38.9	93rd	149th of 522
Foreign-born residents	37.5%	23.1%	18%	14.1%	93rd	19th of 522
Residents 65 and older	22.8%	16.3%	17.9%	17.2%	86th	172nd of 522
Average commuteWeakness	31.4 min	29.9 min	29.1 min	26.4 min	80th	182nd of 504
Rent-burdened renters	58%	47.1%	51.8%	51.1%	77th	143rd of 506
Residents under 18	25.4%	19.5%	19.4%	22%	77th	49th of 522
Income inequality (Gini)	0.468	0.475	0.489	0.483	75th	139th of 517
Homeownership rate	75.9%	61.3%	62.5%	65.2%	69th	296th of 518
Diversity index	57.2	54.3	52.7	61.4	66th	81st of 522
Self-employed workers	10.1%	8.7%	8.8%	10%	60th	223rd of 520
Population density	1,889/sq mi	2,003/sq mi	903/sq mi	95/sq mi	56th	163rd of 522
Population	18,080	1,638,365	7,044,056	334,922,499	28th	144th of 522
Healthcare workers	7.7%	8.9%	10.3%	9.7%	23rd	398th of 520
Poverty rate	6.4%	7.7%	10%	12.5%	21st	264th of 519
Veterans	3%	3.3%	4.3%	6.2%	15th	410th of 522
Unemployment rateStrength	2.4%	4.4%	5.2%	5.2%	9th	431st of 520
Government workers	7%	10.8%	12.7%	14.5%	4th	468th of 520
Uninsured rateStrength	1.4%	2.4%	2.6%	8.4%	2nd	323rd of 521
Housing vacancy	1.1%	4.5%	8.1%	10.1%	1st	479th of 519

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

22%

5–17

18–24

25–34

10%

35–44

20%

45–54

14%

55–64

12%

65–74

11%

75+

Median age

48.2

Under 18

25.4%

65 and over

22.8%

Race and ethnicity

White55%
Black1%
Hispanic3%
Asian36%
Native American0%
Pacific Islander0%
Other1%
Multiracial4%

Diversity index

57.2

U.S. 61.4

Foreign-born

37.5%

U.S. 14.1%

Born in state

32.5%

Language spoken at home (households)

English only

59%

Spanish

Other Indo-European

13%

Asian / Pacific

23%

Other

Households

Households: 6,824
Average household size: 2.6
Family households: 77.4%
Married couples: 67.6%
Living alone: 19.9%
Veterans (of adults): 3%
Male / female: 48% / 52%

Income and poverty

Household income distribution

<$25k

10%

$25–50k

$50–75k

$75–100k

$100–150k

$150–200k

13%

$200k+

53%

Median household income

02421

$227,813

Middlesex Co.

$130,847

Massachusetts

$103,960

United States

$80,734

Per capita income

$112,662

U.S. $44,673

Poverty rate

6.4%

U.S. 12.5%

Households earning $150K+

66.1%

U.S. 23%

Income inequality (Gini)

0.468

U.S. 0.483

Housing

Median home value

02421

$1,205,700

Middlesex Co.

$727,800

Massachusetts

$562,100

United States

$332,700

Median gross rent

02421

$2,948

Middlesex Co.

$2,201

Massachusetts

$1,762

United States

$1,413

Types of housing

Single-family

78%

2–4 units

5–19 units

20+ units

10%

Mobile home

Boat, RV, van

Housing units: 6,903
Owner-occupied: 75.9%
Vacant: 1.1%
Median year built: 1967
Median rooms: 7.2
Renters paying 30%+ of income: 58%
Renters paying 50%+ of income: 36.6%
Home value to income: 5.3× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

50%

Carpooled

Transit

Walked

Bicycle

0.8%

Worked from home

38%

Other

0.5%

Commute time (one way)

<10 min

10%

10–19

18%

20–29

19%

30–44

23%

45–59

20%

60+

11%

Average commute

31.4 min

U.S. 26.4 min

Unemployment

2.4%

U.S. 5.2%

In labor force

60.1%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

20%

Computer and math

14%

Engineering and science

11%

Business and finance

11%

Education

10%

Healthcare

Sales

Office and admin

Legal and social services

Food service

Arts, media and sports

Production

Cleaning and personal care

Transportation and moving

Police and fire

0.9%

Construction and repair

0.6%

Farming, fishing and forestry

Industries

Professional and technical services

29%

Manufacturing

17%

Education

14%

Health care and social assistance

12%

Finance, insurance and real estate

Retail

Restaurants and hotels

Arts and recreation

Other services

Public administration

Information

Admin, support and management

Wholesale

Transportation, warehousing and utilities

0.7%

Construction

0.7%

Agriculture and mining

Median earnings per worker

$146,875

U.S. $49,666

Self-employed

10.1%

U.S. 10%

Government workers

U.S. 14.5%

Nonprofit workers

16.3%

U.S. 8.8%

Median earnings by type of work

Type of work	02421	U.S.
Management, business, science and arts	$166,266	$74,888
Service	$6,563	$26,804
Sales and office	$61,016	$40,476
Construction and maintenance	$90,769	$49,199
Production and transportation	$45,592	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

Some college

Associate's

Bachelor's

25%

Graduate

58%

High school graduate or higher: 96%
Bachelor's degree or higher: 83.2%
Graduate or professional degree: 58.1%
Households with broadband: 98.2%
Cable, fiber or DSL: 91.9%
No internet access: 1.3%
Without health insurance: 1.4%
Limited-English households: 7.9%

Geography

City (USPS): Lexington
State: Massachusetts
County: Middlesex County
Center point: 42.4385° N, 71.2396° W
Land area: 9.6 sq mi
Water area: 0.2 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Lexington (unincorporated)100% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 02421

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
02420	Lexington, MA	1.8 mi	16,215	$245,031	$1,200,300
02451	Waltham, MA	2.6 mi	17,393	$122,335	$753,000
01731	Hanscom Afb, MA	2.9 mi	2,110	$104,688	—
02452	Waltham, MA	3.1 mi	15,808	$118,431	$808,300
02475	Arlington Heights, MA · PO box	3.3 mi	—	—	—
01773	Lincoln, MA	3.7 mi	4,891	$209,327	$1,200,800
02476	Arlington, MA	3.7 mi	17,708	$151,131	$934,800
02478	Belmont, MA	4.3 mi	27,175	$183,137	$1,159,000
02474	Arlington, MA	4.4 mi	28,642	$150,560	$933,200
02479	Waverley, MA · PO box	4.6 mi	—	—	—
01730	Bedford, MA	4.7 mi	14,707	$172,400	$898,500
02453	Waltham, MA	4.8 mi	31,591	$115,366	$705,100

Zip codes like 02421 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 02421

What city is zip code 02421?

02421 is assigned to Lexington, Massachusetts. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 02421 in?

02421 is in Middlesex County, Massachusetts.

What is the population of 02421?

About 18,080 people live in 02421, according to the Census Bureau's American Community Survey.

What time zone is 02421 in?

02421 is in Eastern Time.

What is the median household income in 02421?

The median household income in 02421 is $227,813.

What zip codes are near 02421?

The closest zip codes to 02421 are 02420, 02451, 01731, 02452, 02475.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 02421, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.