Zip code 02451: Waltham, Massachusetts

Q: What city is zip code 02451?

02451 is assigned to Waltham, Massachusetts. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 02451 in?

02451 is in Middlesex County, Massachusetts.

Q: What is the population of 02451?

About 17,393 people live in 02451, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 02451?

The median household income in 02451 is $122,335.

Q: What zip codes are near 02451?

The closest zip codes to 02451 are 02452, 02453, 02421, 02454, 01773.

Residential delivery areaMiddlesex CountyEastern Time

Population

17,393

Median household income

$122K

U.S. $81K

Median home value

$753K

U.S. $333K

Median rent

$2,677/mo

U.S. $1,413

Median age

40.3

U.S. 38.9

Land area

5.3 sq mi

3,269 people/sq mi

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

About 02451

02451 is an urban zip code in Waltham, Massachusetts (Middlesex County), covering 5.3 sq mi of land. About 17,393 people live here, or 3,269 per square mile. The median resident is 40.3 years old, compared with 38.9 nationally.

The median household earns $122,335 a year, 52% above the national median of $80,734. 8.3% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $753,000, or 6.2 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 59% of occupied homes are lived in by their owners, and renters pay a median of $2,677 a month.

56% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 26.1 minutes each way, and 21% of workers work from home. The most common jobs among working residents are in management; engineering and science; and computer and math (tech). 37% of households speak a language other than English at home, most often another Indo-European language such as French, German, Russian or Hindi.

How 02451 compares

Sorted from highest to lowest national percentile

Median gross rent$2,677
97th
U.S. $1,413 · MA $1,76225th of 461 in MA
Tech workers9.5%
96th
U.S. 3.8% · MA 4.9%40th of 520 in MA
Median earnings per worker$75,843
91st
StrengthU.S. $49,666 · MA $62,095134th of 519 in MA
Per capita income$67,455
90th
StrengthU.S. $44,673 · MA $57,897155th of 522 in MA
Median home value$753,000
89th
U.S. $332,700 · MA $562,100110th of 506 in MA
Median household income$122,335
86th
StrengthU.S. $80,734 · MA $103,960187th of 503 in MA
Foreign-born residents29.4%
86th
U.S. 14.1% · MA 18%43rd of 522 in MA
Bachelor's degree or higher56%
85th
StrengthU.S. 35.7% · MA 47.3%177th of 521 in MA
Work from home21.2%
80th
U.S. 15.1% · MA 18.6%188th of 520 in MA
Diversity index63.3
79th
U.S. 61.4 · MA 52.751st of 522 in MA
Population density3,269/sq mi
69th
U.S. 95/sq mi · MA 903/sq mi123rd of 522 in MA
Broadband access94.2%
68th
U.S. 91% · MA 92.8%259th of 518 in MA
Residents 65 and older18.8%
66th
U.S. 17.2% · MA 17.9%281st of 522 in MA
Income inequality (Gini)0.453
64th
U.S. 0.483 · MA 0.489186th of 517 in MA
Rent-burdened renters53.7%
62nd
U.S. 51.1% · MA 51.8%217th of 506 in MA
Median age40.3
60th
U.S. 38.9 · MA 40370th of 522 in MA
Average commute26.1 min
50th
U.S. 26.4 min · MA 29.1 min343rd of 504 in MA
Poverty rate8.3%
34th
U.S. 12.5% · MA 10%193rd of 519 in MA
Homeownership rate59.3%
31st
U.S. 65.2% · MA 62.5%400th of 518 in MA
Healthcare workers8.2%
31st
U.S. 9.7% · MA 10.3%372nd of 520 in MA
Population17,393
27th
U.S. 334,922,499 · MA 7,044,056158th of 522 in MA
Unemployment rate3.5%
24th
U.S. 5.2% · MA 5.2%352nd of 520 in MA
Government workers10.2%
20th
U.S. 14.5% · MA 12.7%376th of 520 in MA
Housing vacancy3.4%
15th
U.S. 10.1% · MA 8.1%386th of 519 in MA
Veterans2.7%
12th
U.S. 6.2% · MA 4.3%431st of 522 in MA
Self-employed workers6.3%
12th
U.S. 10% · MA 8.8%412th of 520 in MA
Residents under 1814.5%
7th
U.S. 22% · MA 19.4%393rd of 522 in MA
Uninsured rate1.3%
2nd
StrengthU.S. 8.4% · MA 2.6%337th of 521 in MA

Measure	02451	Middlesex	MA	U.S.	National percentile	Rank in MA
Median gross rent	$2,677	$2,201	$1,762	$1,413	97th	25th of 461
Tech workers	9.5%	7.8%	4.9%	3.8%	96th	40th of 520
Median earnings per workerStrength	$75,843	$73,671	$62,095	$49,666	91st	134th of 519
Per capita incomeStrength	$67,455	$69,556	$57,897	$44,673	90th	155th of 522
Median home value	$753,000	$727,800	$562,100	$332,700	89th	110th of 506
Median household incomeStrength	$122,335	$130,847	$103,960	$80,734	86th	187th of 503
Foreign-born residents	29.4%	23.1%	18%	14.1%	86th	43rd of 522
Bachelor's degree or higherStrength	56%	59.5%	47.3%	35.7%	85th	177th of 521
Work from home	21.2%	24.7%	18.6%	15.1%	80th	188th of 520
Diversity index	63.3	54.3	52.7	61.4	79th	51st of 522
Population density	3,269/sq mi	2,003/sq mi	903/sq mi	95/sq mi	69th	123rd of 522
Broadband access	94.2%	94.7%	92.8%	91%	68th	259th of 518
Residents 65 and older	18.8%	16.3%	17.9%	17.2%	66th	281st of 522
Income inequality (Gini)	0.453	0.475	0.489	0.483	64th	186th of 517
Rent-burdened renters	53.7%	47.1%	51.8%	51.1%	62nd	217th of 506
Median age	40.3	38.9	40	38.9	60th	370th of 522
Average commute	26.1 min	29.9 min	29.1 min	26.4 min	50th	343rd of 504
Poverty rate	8.3%	7.7%	10%	12.5%	34th	193rd of 519
Homeownership rate	59.3%	61.3%	62.5%	65.2%	31st	400th of 518
Healthcare workers	8.2%	8.9%	10.3%	9.7%	31st	372nd of 520
Population	17,393	1,638,365	7,044,056	334,922,499	27th	158th of 522
Unemployment rate	3.5%	4.4%	5.2%	5.2%	24th	352nd of 520
Government workers	10.2%	10.8%	12.7%	14.5%	20th	376th of 520
Housing vacancy	3.4%	4.5%	8.1%	10.1%	15th	386th of 519
Veterans	2.7%	3.3%	4.3%	6.2%	12th	431st of 522
Self-employed workers	6.3%	8.7%	8.8%	10%	12th	412th of 520
Residents under 18	14.5%	19.5%	19.4%	22%	7th	393rd of 522
Uninsured rateStrength	1.3%	2.4%	2.6%	8.4%	2nd	337th of 521

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

5–17

10%

18–24

16%

25–34

14%

35–44

12%

45–54

14%

55–64

65–74

10%

75+

Median age

40.3

Under 18

14.5%

65 and over

18.8%

Race and ethnicity

White55%
Black8%
Hispanic15%
Asian17%
Native American0.0%
Pacific Islander0%
Other0.7%
Multiracial3%

Diversity index

63.3

U.S. 61.4

Foreign-born

29.4%

U.S. 14.1%

Born in state

47.4%

Language spoken at home (households)

English only

63%

Spanish

11%

Other Indo-European

14%

Asian / Pacific

11%

Other

Households

Households: 7,481
Average household size: 2.3
Family households: 58.4%
Married couples: 44.2%
Living alone: 29.2%
Veterans (of adults): 2.7%
Male / female: 50% / 50%

Income and poverty

Household income distribution

<$25k

12%

$25–50k

12%

$50–75k

$75–100k

$100–150k

19%

$150–200k

13%

$200k+

29%

Median household income

02451

$122,335

Middlesex Co.

$130,847

Massachusetts

$103,960

United States

$80,734

Per capita income

$67,455

U.S. $44,673

Poverty rate

8.3%

U.S. 12.5%

Households earning $150K+

41.8%

U.S. 23%

Income inequality (Gini)

0.453

U.S. 0.483

Housing

Median home value

02451

$753,000

Middlesex Co.

$727,800

Massachusetts

$562,100

United States

$332,700

Median gross rent

02451

$2,677

Middlesex Co.

$2,201

Massachusetts

$1,762

United States

$1,413

Types of housing

Single-family

62%

2–4 units

17%

5–19 units

12%

20+ units

Mobile home

0.3%

Boat, RV, van

Housing units: 7,748
Owner-occupied: 59.3%
Vacant: 3.4%
Median year built: 1965
Median rooms: 5.7
Renters paying 30%+ of income: 53.7%
Renters paying 50%+ of income: 26.5%
Home value to income: 6.2× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

59%

Carpooled

Transit

Walked

0.9%

Bicycle

Worked from home

21%

Other

Commute time (one way)

<10 min

10–19

27%

20–29

24%

30–44

25%

45–59

60+

Average commute

26.1 min

U.S. 26.4 min

Unemployment

3.5%

U.S. 5.2%

In labor force

69.5%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

14%

Engineering and science

11%

Computer and math

Office and admin

Business and finance

Healthcare

Sales

Education

Construction and repair

Cleaning and personal care

Transportation and moving

Arts, media and sports

Legal and social services

Food service

Production

Police and fire

0.7%

Farming, fishing and forestry

Industries

Professional and technical services

19%

Health care and social assistance

14%

Education

13%

Retail

Finance, insurance and real estate

Manufacturing

Construction

Other services

Restaurants and hotels

Public administration

Transportation, warehousing and utilities

Information

Admin, support and management

Arts and recreation

Wholesale

0.4%

Agriculture and mining

0.1%

Median earnings per worker

$75,843

U.S. $49,666

Self-employed

6.3%

U.S. 10%

Government workers

10.2%

U.S. 14.5%

Nonprofit workers

17.5%

U.S. 8.8%

Median earnings by type of work

Type of work	02451	U.S.
Management, business, science and arts	$103,336	$74,888
Service	$29,808	$26,804
Sales and office	$51,915	$40,476
Construction and maintenance	$82,672	$49,199
Production and transportation	$50,167	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

21%

Some college

11%

Associate's

Bachelor's

28%

Graduate

28%

High school graduate or higher: 94.6%
Bachelor's degree or higher: 56%
Graduate or professional degree: 27.7%
Households with broadband: 94.2%
Cable, fiber or DSL: 86.2%
No internet access: 4.5%
Without health insurance: 1.3%
Limited-English households: 4.5%

Geography

City (USPS): Waltham
State: Massachusetts
County: Middlesex County
Center point: 42.4015° N, 71.2530° W
Land area: 5.3 sq mi
Water area: 0.7 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Waltham100% of zip

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

Zip codes near 02451

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
02452	Waltham, MA	1.7 mi	15,808	$118,431	$808,300
02453	Waltham, MA	2.3 mi	31,591	$115,366	$705,100
02421	Lexington, MA	2.6 mi	18,080	$227,813	$1,205,700
02454	Waltham, MA · PO box	3.1 mi	—	—	—
01773	Lincoln, MA	3.4 mi	4,891	$209,327	$1,200,800
02455	North Waltham, MA · PO box	3.6 mi	—	—	—
02478	Belmont, MA	3.7 mi	27,175	$183,137	$1,159,000
02479	Waverley, MA · PO box	3.7 mi	—	—	—
02495	Nonantum, MA · PO box	3.7 mi	—	—	—
02465	West Newton, MA	3.8 mi	11,697	$194,265	$1,159,200
02493	Weston, MA	3.8 mi	11,579	$250,000+	$1,694,400
02466	Auburndale, MA	3.9 mi	8,679	$170,089	$1,174,000

Zip codes like 02451 elsewhere

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

Questions about 02451

What city is zip code 02451?

02451 is assigned to Waltham, Massachusetts. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 02451 in?

02451 is in Middlesex County, Massachusetts.

What is the population of 02451?

About 17,393 people live in 02451, according to the Census Bureau's American Community Survey.

What time zone is 02451 in?

02451 is in Eastern Time.

What is the median household income in 02451?

The median household income in 02451 is $122,335.

What zip codes are near 02451?

The closest zip codes to 02451 are 02452, 02453, 02421, 02454, 01773.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 02451, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.