02109 ZIP Code — Boston, MA

Suffolk County, Massachusetts

ZIP code 02109 is located in Boston, Massachusetts, within Suffolk County. It covers approximately 0.17 square miles and serves a population of 3,559 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 617/857/781.

About ZIP code 02109

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 $1,010,200. Renters make up the majority at 64%, typical of denser urban areas.

The gap between median ($162,179) 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 professional and management as the leading industry. The average commute of 24 minutes is near the national average. Remote work is prevalent — 22% of workers work from home.

Educational attainment is high — 82% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 02109 reflects a community defined by a highly educated population and a high rate of remote workers.

3,559

population

0.17

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

02109 ZIP code map

Cities in ZIP code 02109

Below are the cities the US Postal Service accepts for ZIP code 02109. Using any city not on this list may result in mail delivery delays.

City	Status
Boston	Preferred

Nearby ZIP codes

02113 Boston (0.2 mi) 02110 Boston (0.4 mi) 02203 Boston (0.4 mi) 02293 Boston (0.5 mi) 02211 Boston (0.5 mi) 02297 Boston (0.5 mi) 02217 Boston (0.5 mi) 02201 Boston (0.5 mi) 02204 Boston (0.5 mi) 02241 Boston (0.5 mi) 02206 Boston (0.5 mi) 02266 Boston (0.5 mi)

Demographics updated 06/2026

Population
Total population	3,559
Population density	20,935 / sq mi
State FIPS	25
County FIPS	025

Geography
Land area	0.17 sq mi
Water area	0.11 sq mi
Latitude	42.3632
Longitude	-71.0538
Timezone	Eastern (ET)
Area code	617/857/781

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	11.8%	37.5%	31.3%
$50k – $100k	23.7%	23.6%	25.9%
$100k – $200k	29.8%	25.7%	28.5%
Over $200k	34.6%	13.2%	14.3%

Demographics & statistics

3,559

Population

20,935

People per sq mi

35.4

Median age

$162,179

Median household income

$116,274

Per capita income

$1,010,200

Median home value

$3,154

Median monthly rent

36.3%

Home ownership

7.1%

Poverty rate

1.5%

Unemployment

1,443

Housing units

81.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

102

20–24

120

593

25–34

701

222

35–44

263

171

45–54

203

127

55–59

151

60–64

155

65–74

184

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	200	5.6%
18 and over	3,359	94.4%
65 and over	528	14.8%
Median age	35.4 years

Race & ethnicity

White 79%

Asian 10.4%

Two or more races 6.3%

Hispanic or Latino 2.8%

Black or African American 1.1%

Other race 0.3%

Group	Count	%
White	2,893	79%
Asian	381	10.4%
Two or more races	232	6.3%
Hispanic or Latino	104	2.8%
Black or African American	42	1.1%
Other race	11	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	11.8%	37.5%	31.3%
$50k – $100k	23.7%	23.6%	25.9%
$100k – $200k	29.8%	25.7%	28.5%
Over $200k	34.6%	13.2%	14.3%

Under $10k 4.0%

$10k–$15k 2.1%

$15k–$25k 2.7%

$25k–$35k 2.1%

$35k–$50k 2.7%

$50k–$75k 12.3%

$75k–$100k 6.0%

$100k–$150k 15.0%

$150k–$200k 18.7%

$200k+ 34.5%

Range	% of households
Under $10k	4.0%
$10k–$15k	2.1%
$15k–$25k	2.7%
$25k–$35k	2.1%
$35k–$50k	2.7%
$50k–$75k	12.3%
$75k–$100k	6.0%
$100k–$150k	15.0%
$150k–$200k	18.7%
$200k+	34.5%
Median income	$162,179

Housing

Home values

$50k–$100k 1.2%

$300k–$500k 7.2%

$500k–$1M 40.7%

$1M+ 50.8%

Housing overview

Metric	Value
Median home value	$1,010,200
Median rent / month	$3,154
Owner occupied	36.3%
Renter occupied	63.7%
Vacant	26.5%
Single-family detached	0.4%
Large apartment buildings	67.1%
Mobile homes	0.0%
Median rooms	3.5
Avg household size (owned)	1.81

Year built

Era	%
2020 or later	0.0%
2010–2019	2.5%
2000–2009	3.5%
1990–1999	2.2%
1980–1989	23.0%
1970–1979	8.0%
1960–1969	5.1%
1950–1959	9.6%
1940–1949	1.2%
1939 or earlier	44.9%

Bedrooms

Size	% of units
No bedroom (studio)	8.0%
1 bedroom	39.5%
2 bedrooms	45.7%
3 bedrooms	5.8%
4 bedrooms	1.0%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	49.2%
1 vehicle	41.6%
2 vehicles	8.8%
3 or more	0.4%

Heating fuel

Fuel type	%
Utility gas	25.5%
Electricity	66.3%
Propane / LP gas	2.5%
Fuel oil	3.2%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	571	28.7%
Cohabiting couple	269	13.5%
Male householder, no spouse	494	24.8%
Female householder, no spouse	659	33.1%
Households with children under 18	150	7.5%
Households with seniors (65+)	307	15.4%
Average household size	1.72

Marital status

Status	Male	Female
Never married	52.5%	53.5%
Married	41.0%	33.2%
Separated	0.8%	0.2%
Widowed	0.4%	7.1%
Divorced	5.4%	6.0%

Education

Less than 9th grade 1.8%

Some HS, no diploma 1.2%

HS graduate 7.0%

Some college, no degree 7.3%

Associate's degree 1.2%

Bachelor's degree 42.5%

Graduate / professional 39.0%

Metric	%
HS diploma or higher	97.0%
Bachelor's or higher	81.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	24	6.5%
Kindergarten	48	13.0%
Elementary school	37	10.0%
High school	11	3.0%
College / grad school	249	67.5%

Employment

Industry of employment

Professional & management 40.5%

Education & healthcare 16.9%

Finance & real estate 16.6%

Arts, food & hospitality 8.6%

Other services 4.3%

Public administration 3.4%

Manufacturing 3.2%

Information 2.3%

Retail trade 2.0%

Transportation & utilities 1.3%

Construction 0.6%

Wholesale trade 0.3%

Occupation

Category	%
Management, business & arts	66.2%
Service	6.8%
Sales & office	22.2%
Natural resources & construction	2.6%
Production & transportation	2.2%

Employment type

Type	%
Private sector	89.9%
Government	6.0%
Self-employed	3.6%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	11.2%
Carpool	0.5%
Public transit	14.4%
Walk	50.0%
Work from home	22.2%
Other means	1.7%
Avg commute (minutes)	23.6

Poverty

All people 7.1%

Under 18 years 0.0%

18 and over 7.5%

Married-couple families 3.2%

Female-led households 0.0%

Income support

Source	% of households
Social Security	12.9%
Retirement income	8.7%
Supplemental Security	2.3%
Cash public assistance	0.5%
Food stamps / SNAP	3.6%

Health indicators

Condition	%
Obesity	17.6%
High blood pressure	20.1%
High cholesterol	21.9%
Diabetes	5.4%
Heart disease	4.0%
Stroke	1.7%
Asthma	9.7%
Arthritis	16.6%
Kidney disease	2.0%
Pulmonary disease	3.3%
Cancer	5.8%

Behavior / access	%
Smoking	8.7%
Binge drinking	22.2%
No physical activity	12.8%
Less than 7 hrs sleep	27.7%
Depression	18.9%
Fair or poor health	6.7%
Poor mental health	12.5%
Poor physical health	5.6%
No health insurance	4.7%
Visited doctor (checkup)	74.5%
Visited dentist	77.0%
Cholesterol screening	89.9%
Teeth loss	6.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	76	2.3%

Disability	%
Any disability	3.8%
Under 18	0.0%
18–64 years	2.7%
65 and over	12.3%

Health insurance coverage

Type	%
Private insurance	90.2%
Public insurance	16.9%
No insurance	1.5%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,479	97.8%
Spanish	87	2.5%
Other Indo-European	0	0.0%
Asian & Pacific Islander	29	0.8%
Other languages	58	1.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,111	87.4%
Born in same state	3,062	86.0%
Born in different state	1,613	45.3%
Foreign born	49	1.4%
Naturalized citizen	448	12.6%
Not a US citizen	206	46.0%

Ancestry

Ancestry	Count	%
Italian	898	25.2%
French	177	5%
Arab	138	3.9%
German	71	2%
Norwegian	19	0.5%

Ancestry	Count	%
English	12	0.3%
Irish	9	0.3%
Polish	8	0.2%
Dutch	6	0.2%

Technology access

Metric	% of households
Computer access	56.0%
Internet access	99.4%

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

Frequently asked questions about ZIP code 02109

What city is ZIP code 02109 in?

ZIP code 02109 is primarily assigned to Boston, Massachusetts.

What county is ZIP code 02109 in?

ZIP code 02109 falls within Suffolk County, Massachusetts.

How educated is the population of ZIP code 02109?

82% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 02109 mostly rentals?

64% of occupied units in ZIP code 02109 are renter-occupied.

What is the median household income in ZIP code 02109?

The median household income in ZIP code 02109 is $162,179, above the national median of ~$75,000.

What is the typical home value in ZIP code 02109?

The median home value in ZIP code 02109 is $1,010,200.

What timezone is ZIP code 02109 in?

ZIP code 02109 observes the EST timezone.