ZIP Code Tabulation Area · Massachusetts

ZIP Code 02131: Boston, MA

ZIP Code 02131 (Boston, Suffolk County, Massachusetts) has an estimated 31,151 residents in 12,694 households. The median household income is $111,006, the median home value is $664,700 and the median gross rent is $2,020/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

31,151

Margin of error ±1,411

Median household income

$111,006

Margin of error ±$4,829

Median home value

$664,700

Margin of error ±$15,178

Median gross rent

$2,020/mo

Margin of error ±$173

Median age

39.1 yrs

Margin of error ±1.5 yrs

Mean travel time to work

33.2 min

Margin of error ±3.2 min

How ZIP 02131 compares with Massachusetts and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 0213139.1 yrsMassachusetts40.0 yrsUnited States38.9 yrs

Median household income

ZIP 02131$111,006Massachusetts$103,960United States$80,734

Per capita income

ZIP 02131$59,973Massachusetts$57,897United States$44,673

Poverty rate

ZIP 021319.0%Massachusetts10.0%United States12.5%

Unemployment rate

ZIP 021315.7%Massachusetts5.2%United States5.2%

Bachelor's degree or higher

ZIP 0213153.9%Massachusetts47.3%United States35.7%

Median home value

ZIP 02131$664,700Massachusetts$562,100United States$332,700

Median gross rent

ZIP 02131$2,020/moMassachusetts$1,762/moUnited States$1,413/mo

Owner-occupied homes

ZIP 0213159.3%Massachusetts62.5%United States65.2%

Mean travel time to work

ZIP 0213133.2 minMassachusetts29.1 minUnited States26.4 min

Worked from home

ZIP 0213123.4%Massachusetts18.6%United States15.1%

All figures for ZIP 02131

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 02131 — ACS 2020–2024 5-year estimates
MeasureZIP 02131Margin of errorMassachusettsUnited States
Total population31,151±1,4117,044,056334,922,499
Median age39.1 yrs±1.5 yrs40.0 yrs38.9 yrs
Households12,694±5692,785,042129,227,496
Median household income$111,006±$4,829$103,960$80,734
Per capita income$59,973±$3,925$57,897$44,673
Poverty rate9.0%±1.6 pts10.0%12.5%
Unemployment rate5.7%±1.3 pts5.2%5.2%
Bachelor's degree or higher53.9%±2.9 pts47.3%35.7%
Median home value$664,700±$15,178$562,100$332,700
Median gross rent$2,020/mo±$173$1,762/mo$1,413/mo
Owner-occupied homes59.3%±3.1 pts62.5%65.2%
Mean travel time to work33.2 min±3.2 min29.1 min26.4 min
Worked from home23.4%±2.9 pts18.6%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 02131
GroupZIP 02131MassachusettsUnited States
White alone, not Hispanic or Latino49.4%66.6%57.4%
Black or African American alone, not Hispanic or Latino19.0%6.4%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.1%0.5%
Asian alone, not Hispanic or Latino3.9%7.3%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino1.2%1.2%0.6%
Two or more races, not Hispanic or Latino5.0%5.1%4.3%
Hispanic or Latino (of any race)21.6%13.3%19.3%

Where ZIP 02131 is

State
Massachusetts
Main county
Suffolk County
Largest overlapping place
Boston (100% of the ZIP's land area)
Land area
2.79 sq mi· about 11,165 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Suffolk County

02111 Boston, MA02113 Boston, MA02114 Boston, MA02115 Boston, MA02116 Boston, MA02118 Boston, MA02119 Boston, MA02120 Boston, MA02121 Boston, MA02122 Boston, MA02124 Boston, MA02125 Boston, MA02126 Boston, MA02127 Boston, MA02128 Boston, MA02129 Boston, MA02130 Boston, MA02132 Boston, MA02133 Boston, MA02134 Boston, MA02135 Boston, MA02136 Boston, MA02150 Chelsea, MA02151 Revere, MA

See every ZIP code in Massachusetts, or compare ZIP 02131 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.