Cambridge, Massachusetts Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Cambridge, Massachusetts is 117,794 as of the 2023 American Community Survey, making it the 4th-largest city in Massachusetts. The median household income is $126,469, the median home value is $1,040,500, and the median age is 30.5.
The population has grown 15.4% since 2010 (105,008 → 121,186).
117,794
Population
18414
People / sq mi
$126,469
Median Income
$1,040,500
Median Home Value
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Cambridge covers 6.4 sq mi of land at 18414 people per square mile.
About Cambridge, MA
What distinguishes Cambridge is density: among the most densely settled of US cities, around 18,414 people per square mile. With 117,794 residents, Cambridge is a city in Massachusetts. That makes it one of the ten largest cities in Massachusetts in the country, at #4 by population.
The typical household earns $126,469 a year, above the US median of $78,538. The poverty rate is 7.2%, below the national 12.4%. Housing is expensive: the median home is worth $1,040,500, with typical rent around $2,742.
Cambridge is among the best-educated US cities: 80.2% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. Working from home is common here: 28.3% of workers do so, above the national 14.0%, and the average commute runs about 26 minutes each way.
That density explains much of the rest of the profile in Cambridge: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Cambridge city Population History (2010-2024)
The city of Cambridge city had a population of 105,008 in 2010 and 121,186 in 2024, a 15.4% growth over 14 years. The peak was 121,186 in 2024. Average annual growth rate: 1.03%.
121,186
Population (2024)
105,008
Population (2010)
121,186
Peak (2024)
1.03%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 105,008 |
| 2011 | 105,884 |
| 2012 | 107,886 |
| 2013 | 112,036 |
| 2014 | 112,993 |
| 2015 | 113,471 |
| 2016 | 115,685 |
| 2017 | 116,869 |
| 2018 | 118,151 |
| 2019 | 118,927 |
| 2020 | 118,204 |
| 2021 | 117,215 |
| 2022 | 117,973 |
| 2023 | 119,315 |
| 2024 | 121,186 |
Race & Ethnicity
| White | 57.5% |
| Black or African American | 10.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Economy & Income
$126,469
Median Household Income
$76,789
Per Capita Income
7.2%
Poverty Rate
2.3%
Unemployment Rate
Housing
$1,040,500
Median Home Value
$2,742
Median Rent
33.7%
Owner-Occupied
Education
95.7%
High School+
80.2%
Bachelor's+
Commute
19.4%
Drive Alone
20.9%
Public Transit
28.3%
Work From Home
26.1 min
Avg Commute
Community Profile
38.8%
Foreign Born
65.8%
Non-English at Home
1.6%
Veterans
7.4%
With Disability
98.2%
Health Insurance
97.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 39.4% |
| Finance, Insurance & Real Estate | 24.8% |
| Manufacturing | 6.8% |
| Information | 5.7% |
| Education, Health Care & Social Services | 4.3% |
| Arts, Entertainment & Food Services | 3.2% |
| Transportation & Warehousing | 3.2% |
| Public Administration | 2.6% |
| Retail Trade | 2.2% |
| Construction | 1.8% |
| Agriculture & Mining | 0.2% |
Largest cities in Massachusetts
Largest counties in Massachusetts
Part of Massachusetts
Metro areas in Massachusetts
City rankings
Frequently Asked Questions
Cambridge, Massachusetts has a population of 117,794 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest city in Massachusetts.
The median household income in Cambridge, Massachusetts is $126,469, with 7.2% of residents living below the federal poverty level.
The median home value in Cambridge, Massachusetts is $1,040,500, with median monthly rent at $2,742 and a homeownership rate of 33.7%.
The median age in Cambridge, Massachusetts is 30.5 years. The population is 49.9% male and 50.1% female.
The population has grown 15.4% since 2010 (105,008 → 121,186).
Where to stay in Cambridge
Visiting or relocating to Cambridge, MA? Compare hotels and short-term rentals across the metro — live availability and prices.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.