02127 ZIP Code — South Boston, MA

Suffolk County, Massachusetts

ZIP code 02127 is located in South Boston, Massachusetts, within Suffolk County. It covers approximately 2.06 square miles and serves a population of 36,175 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 781/617/857.

About ZIP code 02127

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $818,200. Renters make up the majority at 56%, typical of denser urban areas.

The gap between median ($145,357) and mean household income suggests income inequality — a small number of higher earners pull the average up.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 29 minutes is near the national average. Remote work is prevalent — 23% of workers work from home.

Educational attainment is high — 70% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 02127 reflects a community defined by a highly educated population and a high rate of remote workers.

36,175

population

2.06

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

02127 ZIP code map

Cities in ZIP code 02127

Below are the cities the US Postal Service accepts for ZIP code 02127. Using any city not on this list may result in mail delivery delays.

City	Status
South Boston	Acceptable
South Boston	Preferred

Nearby ZIP codes

02210 Boston (0.7 mi) 02212 Boston (0.9 mi) 02111 Boston (1.5 mi) 02125 Dorchester (1.7 mi) 02110 Boston (1.8 mi) 02118 Boston (1.9 mi) 02201 Boston (2 mi) 02211 Boston (2 mi) 02204 Boston (2 mi) 02206 Boston (2 mi) 02241 Boston (2 mi) 02217 Boston (2 mi)

Demographics updated 05/2026

Population
Total population	36,175
Population density	17,561 / sq mi
State FIPS	25
County FIPS	025

Geography
Land area	2.06 sq mi
Water area	0.63 sq mi
Latitude	42.3361
Longitude	-71.0358
Timezone	Eastern (ET)
Area code	781/617/857

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	26.8%	37.5%	31.3%
$50k – $100k	15.7%	23.6%	25.9%
$100k – $200k	32.3%	25.7%	28.5%
Over $200k	25.2%	13.2%	14.3%

Demographics & statistics

36,175

Population

17,561

People per sq mi

32.4

Median age

$145,357

Median household income

$86,557

Per capita income

$818,200

Median home value

$2,255

Median monthly rent

44.5%

Home ownership

10.5%

Poverty rate

4.0%

Unemployment

9,535

Housing units

70.0%

Bachelor's or higher

Age distribution

Male Female

840

Under 5

898

465

5–9

496

525

10–14

561

405

15–19

432

1,171

20–24

1,252

6,519

25–34

6,965

2,697

35–44

2,882

1,645

45–54

1,758

863

55–59

921

772

60–64

824

913

65–74

975

446

75–84

476

229

85+

245

← Male

Female →

Age summary

Group	Count	%
Under 18	4,254	11.8%
18 and over	31,921	88.2%
65 and over	3,284	9.1%
Median age	32.4 years

Race & ethnicity

White 73.6%

Hispanic or Latino 6.5%

Asian 6.5%

Two or more races 6%

Black or African American 4.3%

Other race 2.9%

American Indian / Alaska Native 0.1%

Group	Count	%
White	28,507	73.6%
Hispanic or Latino	2,533	6.5%
Asian	2,527	6.5%
Two or more races	2,311	6%
Black or African American	1,679	4.3%
Other race	1,119	2.9%
American Indian / Alaska Native	32	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	26.8%	37.5%	31.3%
$50k – $100k	15.7%	23.6%	25.9%
$100k – $200k	32.3%	25.7%	28.5%
Over $200k	25.2%	13.2%	14.3%

Under $10k 5.4%

$10k–$15k 2.6%

$15k–$25k 5.5%

$25k–$35k 4.0%

$35k–$50k 4.1%

$50k–$75k 7.6%

$75k–$100k 7.1%

$100k–$150k 14.5%

$150k–$200k 13.9%

$200k+ 35.2%

Range	% of households
Under $10k	5.4%
$10k–$15k	2.6%
$15k–$25k	5.5%
$25k–$35k	4.0%
$35k–$50k	4.1%
$50k–$75k	7.6%
$75k–$100k	7.1%
$100k–$150k	14.5%
$150k–$200k	13.9%
$200k+	35.2%
Median income	$145,357

Housing

Home values

Under $50k 0.7%

$50k–$100k 0.1%

$100k–$150k 0.1%

$150k–$200k 0.1%

$200k–$300k 0.5%

$300k–$500k 11.7%

$500k–$1M 59.1%

$1M+ 27.7%

Housing overview

Metric	Value
Median home value	$818,200
Median rent / month	$2,255
Owner occupied	44.5%
Renter occupied	55.5%
Vacant	9.4%
Single-family detached	7.9%
Large apartment buildings	13.7%
Mobile homes	0.0%
Median rooms	4.2
Avg household size (owned)	2.08

Year built

Era	%
2020 or later	0.3%
2010–2019	12.9%
2000–2009	8.7%
1990–1999	4.3%
1980–1989	5.4%
1970–1979	6.2%
1960–1969	4.5%
1950–1959	6.2%
1940–1949	4.3%
1939 or earlier	47.1%

Bedrooms

Size	% of units
No bedroom (studio)	2.5%
1 bedroom	22.4%
2 bedrooms	44.3%
3 bedrooms	22.8%
4 bedrooms	6.0%
5+ bedrooms	2.0%

Vehicles per household

Vehicles	% of households
No vehicle	27.5%
1 vehicle	48.3%
2 vehicles	20.2%
3 or more	4.0%

Heating fuel

Fuel type	%
Utility gas	67.3%
Electricity	23.3%
Propane / LP gas	3.0%
Fuel oil	4.1%
No fuel used	2.1%

Households & families

Household type	Count	%
Married-couple family	4,713	27.1%
Cohabiting couple	2,035	11.7%
Male householder, no spouse	4,526	26.0%
Female householder, no spouse	6,132	35.2%
Households with children under 18	2,592	14.9%
Households with seniors (65+)	2,525	14.5%
Average household size	2.06

Marital status

Status	Male	Female
Never married	58.4%	58.6%
Married	33.5%	29.3%
Separated	1.0%	1.9%
Widowed	1.8%	4.3%
Divorced	5.2%	5.9%

Education

Less than 9th grade 2.9%

Some HS, no diploma 2.4%

HS graduate 13.6%

Some college, no degree 8.6%

Associate's degree 2.6%

Bachelor's degree 44.6%

Graduate / professional 25.4%

Metric	%
HS diploma or higher	94.8%
Bachelor's or higher	70.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	425	7.2%
Kindergarten	140	2.4%
Elementary school	1,824	31.0%
High school	734	12.5%
College / grad school	2,753	46.9%

Employment

Industry of employment

Professional & management 27.3%

Education & healthcare 23.2%

Finance & real estate 16.3%

Retail trade 7.9%

Manufacturing 5.5%

Arts, food & hospitality 4.7%

Public administration 3.1%

Construction 3.0%

Information 2.6%

Transportation & utilities 2.5%

Wholesale trade 1.9%

Other services 1.8%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	65.8%
Service	9.8%
Sales & office	19.0%
Natural resources & construction	2.2%
Production & transportation	3.2%

Employment type

Type	%
Private sector	87.4%
Government	10.3%
Self-employed	2.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	34.2%
Carpool	3.3%
Public transit	27.8%
Walk	8.9%
Work from home	23.0%
Other means	2.9%
Avg commute (minutes)	28.8

Poverty

All people 10.5%

Under 18 years 21.0%

18 and over 9.1%

Married-couple families 4.8%

Female-led households 23.8%

Income support

Source	% of households
Social Security	12.5%
Retirement income	11.7%
Supplemental Security	4.8%
Cash public assistance	3.0%
Food stamps / SNAP	10.3%

Health indicators

Condition	%
Obesity	19.0%
High blood pressure	19.0%
High cholesterol	22.7%
Diabetes	5.6%
Heart disease	3.6%
Stroke	1.8%
Asthma	10.6%
Arthritis	15.7%
Kidney disease	1.9%
Pulmonary disease	3.7%
Cancer	4.9%

Behavior / access	%
Smoking	11.0%
Binge drinking	22.8%
No physical activity	15.4%
Less than 7 hrs sleep	29.0%
Depression	20.6%
Fair or poor health	8.7%
Poor mental health	14.2%
Poor physical health	6.5%
No health insurance	6.4%
Visited doctor (checkup)	73.4%
Visited dentist	73.0%
Cholesterol screening	88.2%
Teeth loss	8.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	950	3.0%

Disability	%
Any disability	8.6%
Under 18	6.5%
18–64 years	6.1%
65 and over	34.7%

Health insurance coverage

Type	%
Private insurance	80.5%
Public insurance	24.1%
No insurance	1.8%
Uninsured under 19	0.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	34,437	95.2%
Spanish	2,635	7.7%
Other Indo-European	1,338	3.9%
Asian & Pacific Islander	318	0.9%
Other languages	887	2.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	31,505	87.1%
Born in same state	30,915	85.5%
Born in different state	20,559	56.8%
Foreign born	590	1.6%
Naturalized citizen	4,670	12.9%
Not a US citizen	3,131	67.0%

Ancestry

Ancestry	Count	%
Italian	11,343	31.4%
French	2,772	7.7%
Arab	889	2.5%
German	628	1.7%

Ancestry	Count	%
Norwegian	382	1.1%
English	206	0.6%
Polish	166	0.5%
Irish	159	0.4%

Technology access

Metric	% of households
Computer access	48.1%
Internet access	94.7%

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

Frequently asked questions about ZIP code 02127

What city is ZIP code 02127 in?

ZIP code 02127 is primarily assigned to South Boston, Massachusetts.

What county is ZIP code 02127 in?

ZIP code 02127 falls within Suffolk County, Massachusetts.

How educated is the population of ZIP code 02127?

70% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 02127 mostly rentals?

56% of occupied units in ZIP code 02127 are renter-occupied.

What is the median household income in ZIP code 02127?

The median household income in ZIP code 02127 is $145,357, above the national median of ~$75,000.

What is the typical home value in ZIP code 02127?

The median home value in ZIP code 02127 is $818,200.

What timezone is ZIP code 02127 in?

ZIP code 02127 observes the EST timezone.