02139 ZIP Code
Cambridge, Massachusetts
December 26, 2025
| ZIP Code: | 02139 |
| City/Town: | Cambridge |
| County: | Middlesex |
| State: | Massachusetts |
| ZIP Type: | Standard |
| Population: | 39,856 |
| Median Household Income: | $117,124 |
| Per Capita Income: | $56,376 |
| Total Housing Units: | 16,866 |
| Median Home Value: | $1,027,300 |
| Land Area: | 1.6 sq miles
4.0 sq km |
| Water Area: | 0.2 sq miles
0.5 sq km |
| Coordinates: | 42.3624, -71.1023 |
Population Information (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 39,856 | -- | -- |
| Male: | 20,481 | 51.4% | 49.6% |
| Female: | 19,375 | 48.6% | 50.4% |
| Median Age: | 29.8 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,645 | 4.1% | 5.7% |
| 5 to 9 years: | 1,236 | 3.1% | 6.0% |
| 10 to 14 years: | 1,154 | 2.9% | 6.5% |
| 15 to 19 years: | 2,966 | 7.4% | 6.6% |
| 20 to 24 years: | 6,124 | 15.4% | 6.7% |
| 25 to 34 years: | 11,776 | 29.5% | 13.7% |
| 35 to 44 years: | 4,768 | 12.0% | 12.9% |
| 45 to 54 years: | 3,329 | 8.4% | 12.4% |
| 55 to 59 years: | 1,257 | 3.2% | 6.5% |
| 60 to 64 years: | 1,534 | 3.8% | 6.4% |
| 65 to 74 years: | 2,383 | 6.0% | 9.7% |
| 75 to 84 years: | 1,274 | 3.2% | 4.8% |
| 85 years and over: | 410 | 1.0% | 2.0% |
Housing Information (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $1,027,300 | -- | $281,900 |
| Median rooms: | 4.3 | -- | 5.5 |
| Median rent: | $2,501 / mo. | -- | $1,268 / mo. |
| Total housing units: | 16,866 | -- | -- |
| Occupied housing units: | 15,995 | 94.8% | 38.0% |
| Vacant housing units: | 871 | 5.2% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 5,118 | 32.0% | 64.8% |
| Renter-occupied: | 10,877 | 68.0% | 35.2% |
Educational Attainment (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 26,731 | -- | -- |
| Less than 9th grade: | 932 | 3.5% | 4.7% |
| 9th to 12th grade, no diploma: | 590 | 2.2% | 6.1% |
| High school graduate: | 1,970 | 7.4% | 26.4% |
| Some college, no degree: | 2,201 | 8.2% | 19.7% |
| Associate degree: | 621 | 2.3% | 8.7% |
| Bachelor's degree: | 8,434 | 31.6% | 20.9% |
| Graduate or professional degree: | 11,983 | 44.8% | 13.7% |
| Percent high school graduate or higher: | -- | 94.3% | 89.1% |
| Percent bachelor's degree or higher: | -- | 76.4% | 34.3% |
Income Information (02139 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $117,124 / yr. | $75,149 / yr. |
| Mean household income: | $160,365 / yr. | $105,833 / yr. |
| Median family income: | $148,274 / yr. | $92,646 / yr. |
| Per capita income: | $56,376 / yr. | $41,261 / yr. |
Employment (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 25,620 | -- | 63.5% |
| Employed: | 24,483 | 95.7% | 96.4% |
| Unemployed: | 1,105 | 4.3% | 5.3% |
| Not in labor force: | 10,079 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 21,257 | 86.8% | 79.7% |
| Government workers: | 2,340 | 9.6% | 14.2% |
| Self-employed: | 863 | 3.5% | 5.9% |
| Unpaid family workers: | 23 | 0.1% | 0.1% |
Race & Ethnicity (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 21,992 | 55.2% | 61.6% |
| Black or African American: | 5,647 | 14.2% | 12.4% |
| American Indian/Alaska Native: | 36 | 0.1% | 1.1% |
| Asian: | 7,561 | 19.0% | 6.0% |
| Native Hawaiian/Pacific Islander: | 110 | 0.3% | 0.2% |
| Some other race: | 1,104 | 2.8% | 8.4% |
| Two or more races: | 3,406 | 8.5% | 10.2% |
| Hispanic or Latino (any race): | 2,960 | 7.4% | 18.7% |
| Mexican: | 3,773 | 9.5% | 11.2% |
| Puerto Rican: | 433 | 1.1% | 1.8% |
| Cuban: | 1,146 | 2.9% | 0.7% |
| Other Hispanic or Latino: | 59 | 0.1% | 5.0% |
| Not Hispanic or Latino: | 2,135 | 5.4% | 81.1% |
Income Distribution (02139 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 683 | 4.3% | 4.9% |
| $10,000 to $14,999: | 641 | 4.0% | 3.8% |
| $15,000 to $24,999: | 789 | 4.9% | 7.0% |
| $25,000 to $34,999: | 877 | 5.5% | 7.4% |
| $35,000 to $49,999: | 751 | 4.7% | 10.7% |
| $50,000 to $74,999: | 1,650 | 10.3% | 16.1% |
| $75,000 to $99,999: | 1,686 | 10.5% | 12.8% |
| $100,000 to $149,999: | 2,662 | 16.6% | 17.1% |
| $150,000 to $199,999: | 2,089 | 13.1% | 8.8% |
| $200,000 or more: | 4,167 | 26.1% | 11.4% |
Commute to Work (02139 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 4,313 | 17.6% | 67.8% |
| Carpooled: | 630 | 2.6% | 8.7% |
| Public transportation: | 5,524 | 22.6% | 4.2% |
| Walked: | 5,724 | 23.4% | 2.5% |
| Other means: | 2,365 | 9.7% | 0.9% |
| Worked from home: | 5,656 | 23.1% | 13.8% |
| Mean travel time to work: | 25.2 min | -- | 26.7 min |
Industry (02139 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 67 | 0.3% | 1.6% |
| Construction: | 326 | 1.3% | 6.9% |
| Manufacturing: | 1,311 | 5.4% | 10.0% |
| Wholesale trade: | 200 | 0.8% | 2.4% |
| Retail trade: | 1,085 | 4.4% | 11.0% |
| Transportation, warehousing, utilities: | 533 | 2.2% | 5.8% |
| Information: | 842 | 3.4% | 1.9% |
| Finance, insurance, real estate: | 1,354 | 5.5% | 6.7% |
| Professional, scientific, management: | 6,163 | 25.2% | 12.1% |
| Education, health care, social services: | 10,113 | 41.3% | 23.3% |
| Arts, entertainment, food services: | 1,071 | 4.4% | 9.0% |
| Other services: | 859 | 3.5% | 4.7% |
| Public administration: | 559 | 2.3% | 4.7% |
Poverty Status (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 12.3% | 8.8% |
| All people below poverty level: | -- | -- | -- |
| Under 18 years: | -- | -- | 16.3% |
| 18 to 64 years: | -- | -- | 11.0% |
| 65 years and over: | -- | -- | 10.3% |
Health Insurance (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 39,107 | 98.1% | 91.3% |
| Private health insurance: | 32,930 | 82.6% | 67.6% |
| Public health coverage: | 9,046 | 22.7% | 35.9% |
| Without health insurance: | 650 | 1.6% | 8.7% |
Benefits & Assistance (02139 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 13,535 | 84.6% | 77.4% |
| Social Security income: | 2,676 | 16.7% | 31.0% |
| Retirement income: | 1,911 | 11.9% | 21.8% |
| Supplemental Security Income (SSI): | 635 | 4.0% | 4.5% |
| Cash public assistance income: | 520 | 3.3% | 1.8% |
| SNAP (food stamps) benefits: | 1,755 | 11.0% | 11.4% |
Housing Types (02139 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 1,393 | 8.3% | 61.4% |
| 1-unit, attached: | 1,075 | 6.4% | 6.1% |
| 2 units: | 1,919 | 11.4% | 3.4% |
| 3 or 4 units: | 4,051 | 24.0% | 4.3% |
| 5 to 9 units: | 2,669 | 15.8% | 4.6% |
| 10 to 19 units: | 1,359 | 8.1% | 4.3% |
| 20 or more units: | 4,400 | 26.1% | 9.9% |
| Mobile home: | 0 | 0.0% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (02139 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 0 | 0.0% | 0.6% |
| Built 2010 to 2019: | 491 | 2.9% | 8.2% |
| Built 2000 to 2009: | 1,342 | 8.0% | 13.5% |
| Built 1990 to 1999: | 712 | 4.2% | 13.2% |
| Built 1980 to 1989: | 1,668 | 9.9% | 13.2% |
| Built 1970 to 1979: | 1,784 | 10.6% | 14.6% |
| Built 1960 to 1969: | 1,067 | 6.3% | 10.2% |
| Built 1950 to 1959: | 856 | 5.1% | 9.9% |
| Built 1940 to 1949: | 482 | 2.9% | 4.6% |
| Built 1939 or earlier: | 8,464 | 50.2% | 12.0% |
Bedrooms (02139 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 931 | 5.5% | 2.4% |
| 1 bedroom: | 4,333 | 25.7% | 3.0% |
| 2 bedrooms: | 5,865 | 34.8% | 9.1% |
| 3 bedrooms: | 4,171 | 24.7% | 15.9% |
| 4 bedrooms: | 1,089 | 6.5% | 18.8% |
| 5 or more bedrooms: | 477 | 2.8% | 17.6% |
Heating Fuel (02139 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 10,905 | 68.2% | 47.1% |
| Bottled, tank, or LP gas: | 394 | 2.5% | 4.9% |
| Electricity: | 3,843 | 24.0% | 40.2% |
| Fuel oil, kerosene, etc.: | 494 | 3.1% | 4.2% |
| Coal or coke: | 12 | 0.1% | 0.1% |
| Wood: | 0 | 0.0% | 1.5% |
| Solar energy: | 43 | 0.3% | 0.1% |
| Other fuel: | 122 | 0.8% | 0.5% |
| No fuel used: | 182 | 1.1% | 0.2% |
Vehicles Available (02139 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 6,184 | 38.7% | 8.3% |
| 1 vehicle available: | 7,088 | 44.3% | 32.6% |
| 2 vehicles available: | 2,323 | 14.5% | 37.0% |
| 3 or more vehicles available: | 400 | 2.5% | 22.1% |
Home Value Distribution (02139 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 38 | 0.7% | 5.7% |
| $50,000 to $99,999: | 13 | 0.3% | 7.8% |
| $100,000 to $149,999: | 33 | 0.6% | 9.2% |
| $150,000 to $199,999: | 91 | 1.8% | 10.8% |
| $200,000 to $299,999: | 130 | 2.5% | 19.9% |
| $300,000 to $499,999: | 149 | 2.9% | 24.1% |
| $500,000 to $999,999: | 1,958 | 38.3% | 17.0% |
| $1,000,000 or more: | 2,706 | 52.9% | 5.6% |
Housing Costs (02139 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $3,084 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $883 / mo. | $584 / mo. |
| Median gross rent: | $2,501 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.38 | 2.53 |
| Average household size (renter-occupied): | 2.04 | 2.38 |
Households (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 15,995 | -- | -- |
| Married-couple households: | 4,473 | 28.0% | 47.5% |
| Cohabiting couple households: | 1,691 | 10.6% | 7.0% |
| Male householder, no spouse: | 4,326 | 27.0% | 5.4% |
| Female householder, no spouse: | 5,489 | 34.3% | 12.7% |
| Householder living alone: | 2,671 | 16.7% | 28.6% |
| 65 years and over living alone: | 3,225 | 20.2% | 11.8% |
| Average household size: | 2.15 | -- | 2.53 |
| Average family size: | 2.89 | -- | -- |
Marital Status (02139 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 18,060 | -- | -- |
| Never married: | 12,027 | 66.6% | 37.0% |
| Now married: | 5,190 | 28.7% | 49.5% |
| Separated: | 94 | 0.5% | 1.5% |
| Widowed: | 718 | 4.0% | 2.6% |
| Divorced: | 10,662 | 59.0% | 9.3% |
School Enrollment (02139 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 13,498 | -- | -- |
| Nursery school, preschool: | 545 | 4.0% | 5.8% |
| Kindergarten: | 296 | 2.2% | 5.0% |
| Elementary school (grades 1-8): | 1,963 | 14.5% | 40.5% |
| High school (grades 9-12): | 771 | 5.7% | 21.4% |
| College or graduate school: | 9,923 | 73.5% | 27.3% |
Veterans & Disability (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 35,173 | -- | -- |
| Veterans: | 501 | 1.4% | 6.3% |
| Civilian noninstitutionalized population: | 39,757 | -- | -- |
| With a disability: | 2,970 | 7.5% | 13.4% |
| Under 18 with disability: | 143 | 4.8% | 5.8% |
| 18 to 64 with disability: | 1,758 | 59.2% | 10.4% |
| 65 and over with disability: | 1,069 | 36.0% | 33.4% |
Mobility (Residence 1 Year Ago) (02139 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 29,364 | 73.7% | 86.9% |
| Different house: | 9,977 | 25.0% | 13.1% |
| Same county: | 3,817 | 38.3% | 7.0% |
| Different county: | 4,724 | 47.3% | 3.2% |
| Different state: | 3,030 | 30.4% | 2.5% |
| Abroad: | 1,436 | 14.4% | 0.4% |
Place of Birth (02139 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 28,301 | 71.0% | 86.2% |
| Foreign born: | 1,231 | 3.1% | 13.9% |
| Naturalized citizen: | 11,555 | 938.7% | 52.7% |
| Not a citizen: | 11,555 | 938.7% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 11,555 | 938.7% | 10.5% |
| Asia: | 2,392 | 194.3% | 31.3% |
| Africa: | 1,367 | 111.0% | 5.5% |
| Oceania: | 129 | 10.5% | 0.5% |
| Latin America: | 2,464 | 200.2% | 50.0% |
| Northern America: | 324 | 26.3% | 2.2% |
Language Spoken at Home (02139 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 38,211 | -- | -- |
| English only: | 24,704 | 64.7% | 78.3% |
| Language other than English: | 13,507 | 35.3% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 3,018 | 7.9% | 13.3% |
| Other Indo-European languages: | 4,421 | 11.6% | 3.5% |
| Asian/Pacific Island languages: | 4,606 | 12.1% | 3.5% |
| Other languages: | 1,462 | 3.8% | 1.0% |
Computers & Internet (02139 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 15,995 | 100.0% | 93.1% |
| Households with broadband internet: | 15,478 | 96.8% | 89.4% |
Cambridge, MA02139