PlainZIP

Boston, MA · standard

ZIP Code 02109

Suffolk County, Massachusetts - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

3,771
8,402/sq mi
$158,843
Median income
$958,000
Median home value
85.7%
Bachelor's or higher

The verdict

Boston pairs a top-decile household income with top-decile home values, in a densely urban, renter-heavy area.

Top 3%
household income, US ZIPs
Top 3%
home value, US ZIPs
8,402
people per sq mi
32%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 02109 against every reporting US ZIP.

ZIP code 02109 covers 0.4 square miles in Boston, Suffolk County, Massachusetts (a standard USPS delivery area), with a modest 3,771 residents on file, a density of 8,402 people per square mile, in the New York time zone.

ZIP 02109 skews affluent, with a median household income of $158,843 (37% above the Massachusetts average), while per-capita income is $118,478. Poverty here runs at 7.6%, with unemployment measured at 2.0%. Median home value sits at $958,000 (60% above the state average), median rent at $3,501 a month, and owner-occupancy at 31.7%.

This is a highly-educated ZIP: 85.7% of adults hold a bachelor's degree or higher, the median age is 33.5, and the average commute is 22 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Suffolk County, letting you compare 02109 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 02109

Top 5 sectors by establishment count in Boston, MA

Which industries have the most business establishments in ZIP 02109.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 02109, Boston, MA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

3,771

Population

0.4

Area (sq mi)

8,402

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 02109?

33.5

Median Age

49.1%

Male

50.9%

Female

10.6%

Foreign-Born

White 82.4%
African American 1.4%
Asian 8.9%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.0%
Hispanic or Latino 2.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$158,843

Median Household Income

+37% vs state

$118,478

Per Capita Income

7.6%

Poverty Rate

2.0%

Unemployment Rate

22.4 min

Mean Commute Time

How ZIP 02109 ranks nationally

Boston, MA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$158,843 Top 3% higher than 97% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). This entry sits in this band. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 90.0%
Bachelor's Degree or Higher 85.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,632

Total Housing Units

2,085

Occupied Units

547

Vacant Units

1.67

Avg Household Size

Occupancy Type

Owner 31.7%
Renter 68.3%

$958,000

Median Home Value

+60% vs state

$3,501

Median Rent

1954

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 1,309 business establishments in ZIP 02109, employing approximately 49,551 people with a combined annual payroll of $6,938,769,000.

1,309

Businesses

49,551

Employees

$6.9B

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 446 34.1%
Finance and insurance 185 14.1%
Administrative and support and waste management and remediation services 102 7.8%
Accommodation and food services 93 7.1%
Other services (except public administration) 93 7.1%
Real estate and rental and leasing 79 6.0%
Information 74 5.7%
Retail trade 72 5.5%
Health care and social assistance 52 4.0%
Wholesale trade 26 2.0%
Educational services 25 1.9%
Construction 17 1.3%
Management of companies and enterprises 16 1.2%
Arts, entertainment, and recreation 12 0.9%
Manufacturing 7 0.5%
Transportation and warehousing 7 0.5%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 02109 vs 02113 →

ZIP 02109 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 02109 ranks #7 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 02109 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 02109 ranks #3 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
02113 Boston, MA 6,915 0.1 mi
02110 Boston, MA 1,733 0.4 mi
02203 Boston, MA 0 0.4 mi
02114 Boston, MA 11,999 0.7 mi
02108 Boston, MA 3,825 0.8 mi
02111 Boston, MA 7,383 1.1 mi
02129 Charlestown, MA 16,439 1.1 mi
02210 Boston, MA 2,090 1.4 mi
02142 Cambridge, MA 3,141 1.5 mi
02141 Cambridge, MA 11,910 1.6 mi

More ZIP Codes in Suffolk County

02151 standard
Revere, MA
Pop: 51,808
02124 standard
Dorchester Center, MA
Pop: 47,783
02135 standard
Brighton, MA
Pop: 42,780
02128 standard
East Boston, MA
Pop: 40,508
02130 standard
Jamaica Plain, MA
Pop: 35,401
02150 standard
Chelsea, MA
Pop: 35,124

Related Areas

Suffolk County Boston, MA Massachusetts

Frequently Asked Questions

What county is ZIP code 02109 in? ▼
ZIP code 02109 (Boston) is located in Suffolk County, Massachusetts. Suffolk County contains multiple ZIP codes, see the full list at /counties/suffolk-ma.
What is the population of ZIP code 02109? ▼
ZIP code 02109 in Boston, MA has a population of 3,771 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 02109? ▼
The median household income in ZIP 02109 is $158,843, which is 108% above the national average of $76,288.
What is the average home value in ZIP 02109? ▼
The median home value in ZIP 02109 is $958,000, which is 244% above the national average of $278,155.
What is the demographic makeup of ZIP 02109? ▼
The largest racial group in ZIP 02109 is White at 82.4%. Hispanic or Latino residents make up 2.7% of the population.
How many businesses are in ZIP code 02109? ▼
ZIP code 02109 has 1,309 business establishments employing approximately 49,551 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 02109? ▼
The top industries by establishment count in ZIP 02109 are: Professional, scientific, and technical services (446), Finance and insurance (185), Administrative and support and waste management and remediation services (102). There are 16 industry sectors represented in total.
What is the education level in ZIP code 02109? ▼
In ZIP code 02109, 90.0% of residents aged 25+ have a high school diploma or higher, and 85.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 02109? ▼
The mean commute time for workers in ZIP code 02109 is 22.4 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 02109? ▼
In ZIP code 02109, approximately 31.7% of occupied housing units are owner-occupied and 68.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 02109? ▼
The poverty rate in ZIP code 02109 is 7.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.