02155 ZIP Code — Medford, MA

Middlesex County, Massachusetts

ZIP code 02155 is located in Medford, Massachusetts, within Middlesex County. It covers approximately 8.19 square miles and serves a population of 63,873 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 781/339/617.

About ZIP code 02155

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the pre-1940, giving the area an established character. Median home value is $669,600. Owner-occupancy sits near the national average at 53%.

The gap between median ($115,048) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.

Educational attainment is high — 56% of residents hold a bachelor's degree or higher, well above the national average of 33%.

63,873

population

8.19

sq mi land

PO Box

ZIP type

Eastern (ET)

timezone

02155 ZIP code map

Cities in ZIP code 02155

Below are the cities the US Postal Service accepts for ZIP code 02155. Using any city not on this list may result in mail delivery delays.

City	Status
Medford	Acceptable

Demographics updated 06/2026

Population
Total population	63,873
Population density	7,799 / sq mi
State FIPS	25
County FIPS	017

Geography
Land area	8.19 sq mi
Water area	0.56 sq mi
Latitude	42.4250
Longitude	-71.1111
Timezone	Eastern (ET)
Area code	781/339/617

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.2%	23.8%	31.3%
$50k – $100k	24.2%	23.1%	25.9%
$100k – $200k	34.2%	32.1%	28.5%
Over $200k	16.5%	20.9%	14.3%

Demographics & statistics

63,873

Population

7,799

People per sq mi

34.5

Median age

$115,048

Median household income

$56,897

Per capita income

$669,600

Median home value

$2,311

Median monthly rent

53.3%

Home ownership

7.4%

Poverty rate

4.3%

Unemployment

14,922

Housing units

56.0%

Bachelor's or higher

Age distribution

Male Female

1,282

Under 5

1,421

1,011

5–9

1,121

1,075

10–14

1,191

2,185

15–19

2,423

3,146

20–24

3,487

6,769

25–34

7,504

3,557

35–44

3,944

3,214

45–54

3,563

1,916

55–59

2,125

1,577

60–64

1,749

2,678

65–74

2,969

1,113

75–84

1,234

768

85+

851

← Male

Female →

Age summary

Group	Count	%
Under 18	8,452	13.2%
18 and over	55,421	86.8%
65 and over	9,613	15.1%
Median age	34.5 years

Race & ethnicity

White 64.9%

Asian 11%

Black or African American 7.3%

Two or more races 6.9%

Hispanic or Latino 6.5%

Other race 3.4%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	44,322	64.9%
Asian	7,541	11%
Black or African American	4,976	7.3%
Two or more races	4,683	6.9%
Hispanic or Latino	4,466	6.5%
Other race	2,298	3.4%
Native Hawaiian / Pacific Islander	37	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.2%	23.8%	31.3%
$50k – $100k	24.2%	23.1%	25.9%
$100k – $200k	34.2%	32.1%	28.5%
Over $200k	16.5%	20.9%	14.3%

Under $10k 3.4%

$10k–$15k 2.8%

$15k–$25k 4.2%

$25k–$35k 4.4%

$35k–$50k 8.3%

$50k–$75k 10.9%

$75k–$100k 8.9%

$100k–$150k 19.2%

$150k–$200k 13.8%

$200k+ 24.0%

Range	% of households
Under $10k	3.4%
$10k–$15k	2.8%
$15k–$25k	4.2%
$25k–$35k	4.4%
$35k–$50k	8.3%
$50k–$75k	10.9%
$75k–$100k	8.9%
$100k–$150k	19.2%
$150k–$200k	13.8%
$200k+	24.0%
Median income	$115,048

Housing

Home values

Under $50k 1.4%

$50k–$100k 1.0%

$100k–$150k 0.8%

$150k–$200k 0.7%

$200k–$300k 2.2%

$300k–$500k 14.0%

$500k–$1M 71.9%

$1M+ 8.0%

Housing overview

Metric	Value
Median home value	$669,600
Median rent / month	$2,311
Owner occupied	53.3%
Renter occupied	46.7%
Vacant	5.2%
Single-family detached	32.6%
Large apartment buildings	20.8%
Mobile homes	0.1%
Median rooms	5.4
Avg household size (owned)	2.42

Year built

Era	%
2020 or later	0.6%
2010–2019	5.5%
2000–2009	6.2%
1990–1999	2.3%
1980–1989	8.0%
1970–1979	8.9%
1960–1969	5.7%
1950–1959	8.6%
1940–1949	5.8%
1939 or earlier	48.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.7%
1 bedroom	12.8%
2 bedrooms	36.6%
3 bedrooms	31.0%
4 bedrooms	12.5%
5+ bedrooms	5.4%

Vehicles per household

Vehicles	% of households
No vehicle	10.9%
1 vehicle	42.0%
2 vehicles	33.1%
3 or more	13.9%

Heating fuel

Fuel type	%
Utility gas	62.3%
Electricity	17.3%
Propane / LP gas	2.4%
Fuel oil	16.2%
Solar	0.6%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	10,211	40.3%
Cohabiting couple	2,304	9.1%
Male householder, no spouse	4,669	18.4%
Female householder, no spouse	8,184	32.3%
Households with children under 18	5,163	20.4%
Households with seniors (65+)	6,747	26.6%
Average household size	2.35

Marital status

Status	Male	Female
Never married	48.2%	48.0%
Married	41.6%	36.9%
Separated	0.9%	0.9%
Widowed	2.5%	7.9%
Divorced	6.8%	6.2%

Education

Less than 9th grade 3.4%

Some HS, no diploma 3.4%

HS graduate 19.8%

Some college, no degree 11.9%

Associate's degree 5.4%

Bachelor's degree 30.4%

Graduate / professional 25.6%

Metric	%
HS diploma or higher	93.2%
Bachelor's or higher	56.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	906	5.8%
Kindergarten	583	3.7%
Elementary school	3,263	20.8%
High school	1,827	11.6%
College / grad school	9,116	58.1%

Employment

Industry of employment

Education & healthcare 29.5%

Professional & management 20.3%

Retail trade 8.2%

Arts, food & hospitality 8.0%

Manufacturing 7.7%

Finance & real estate 6.9%

Other services 5.2%

Construction 4.3%

Public administration 3.3%

Transportation & utilities 2.9%

Information 2.4%

Wholesale trade 1.2%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	56.3%
Service	15.7%
Sales & office	17.9%
Natural resources & construction	4.5%
Production & transportation	5.6%

Employment type

Type	%
Private sector	85.5%
Government	11.2%
Self-employed	3.2%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	50.9%
Carpool	7.4%
Public transit	14.9%
Walk	5.3%
Work from home	18.6%
Other means	2.9%
Avg commute (minutes)	31.1

Poverty

All people 7.4%

Under 18 years 6.5%

18 and over 7.6%

Married-couple families 1.8%

Female-led households 4.6%

Income support

Source	% of households
Social Security	25.0%
Retirement income	19.7%
Supplemental Security	3.5%
Cash public assistance	2.9%
Food stamps / SNAP	8.4%

Health indicators

Condition	%
Obesity	21.1%
High blood pressure	25.2%
High cholesterol	26.2%
Diabetes	6.9%
Heart disease	4.6%
Stroke	2.2%
Asthma	10.2%
Arthritis	19.4%
Kidney disease	2.3%
Pulmonary disease	4.3%
Cancer	6.3%

Behavior / access	%
Smoking	10.2%
Binge drinking	16.9%
No physical activity	16.1%
Less than 7 hrs sleep	28.6%
Depression	18.2%
Fair or poor health	8.6%
Poor mental health	13.3%
Poor physical health	7.0%
No health insurance	5.8%
Visited doctor (checkup)	75.5%
Visited dentist	74.2%
Cholesterol screening	89.9%
Teeth loss	9.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,982	3.6%

Disability	%
Any disability	8.4%
Under 18	3.4%
18–64 years	5.2%
65 and over	28.5%

Health insurance coverage

Type	%
Private insurance	81.7%
Public insurance	27.6%
No insurance	3.7%
Uninsured under 19	2.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	61,170	95.8%
Spanish	5,810	9.5%
Other Indo-European	1,193	2.0%
Asian & Pacific Islander	3,031	5.0%
Other languages	1,419	2.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	48,911	76.6%
Born in same state	47,822	74.9%
Born in different state	33,105	51.8%
Foreign born	1,089	1.7%
Naturalized citizen	14,962	23.4%
Not a US citizen	7,755	51.8%

Ancestry

Ancestry	Count	%
Italian	12,387	19.4%
French	4,352	6.8%
Arab	2,760	4.3%
German	1,033	1.6%
English	231	0.4%

Ancestry	Count	%
Polish	190	0.3%
Norwegian	176	0.3%
Irish	138	0.2%
Dutch	81	0.1%

Technology access

Metric	% of households
Computer access	39.7%
Internet access	95.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 02155

What part of Medford is ZIP code 02155?

ZIP code 02155 covers a portion of Medford, Massachusetts, within Middlesex County.

What county is ZIP code 02155 in?

ZIP code 02155 falls within Middlesex County, Massachusetts.

How educated is the population of ZIP code 02155?

56% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 02155?

The median home value in ZIP code 02155 is $669,600.

What is the median household income in ZIP code 02155?

The median household income in ZIP code 02155 is $115,048, above the national median of ~$75,000.

What is the population of ZIP code 02155?

ZIP code 02155 has an estimated population of 63,873 residents, with a density of 7,799 people per square mile.

What timezone is ZIP code 02155 in?

ZIP code 02155 observes the EST timezone.