Demographics of Cambridge city, Massachusetts

Cambridge city, Massachusetts had 122,588 people on July 1, 2025, by the Census Bureau’s estimate: +6,386 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Cambridge city, in four figures

122,588
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 118,796 ±73.; +5.5%
Change since July 2020: +6,386 people.; 30.4 ±0.4
Median age: ACS 2020–⁠2024.; $130,748 ±$3,564
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Cambridge city, Massachusetts's population grew 5.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Cambridge city, Massachusetts's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Cambridge city, Massachusetts's population grew 5.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Cambridge city, Massachusetts's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	116,202	100.0	100.0
2021	112,971	97.2	100.2
2022	119,861	103.1	100.7
2023	121,186	104.3	101.6
2024	121,837	104.8	102.5
2025	122,588	105.5	103.1

Population of Cambridge city, Massachusetts on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	116,202	—
2021	112,971	−3,231
2022	119,861	+6,890
2023	121,186	+1,325
2024	121,837	+651
2025	122,588	+751

Age, 2020–2024

The median age is 30.4 ±0.4: for men 30.0 ±0.6 and for women 30.9 ±0.5. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Cambridge city by age, ACS 2020–2024
Age	People	Share	Massachusetts	United States
Under 5	4,963 ±546	4.2% ±0.5	5.0% ±<0.1	5.6% ±<0.1
5 to 17	9,727 ±757	8.2% ±0.6	14.4% ±0.1	16.3% ±<0.1
18 to 24	24,831 ±1,228	20.9% ±1.0	9.8% ±0.1	9.1% ±<0.1
25 to 44	47,263 ±1,545	39.8% ±1.3	27.1% ±0.1	26.9% ±<0.1
45 to 64	17,572 ±911	14.8% ±0.8	25.9% ±0.1	24.8% ±<0.1
65 and over	14,440 ±785	12.2% ±0.7	17.9% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $130,748 ±$3,564, and income per person $78,723 ±$2,057, in 2024 dollars. The median is $103,960 ±$527 in Massachusetts and $80,734 ±$166 in the United States.

Households by income

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Households in Cambridge city by income, ACS 2020–2024
Household income	Households	Share	Massachusetts	United States
Under $25,000	6,282 ±611	12.7% ±1.2	13.2% ±0.2	14.6% ±<0.1
$25,000 to $49,999	3,992 ±451	8.1% ±0.9	12.5% ±0.2	16.7% ±<0.1
$50,000 to $74,999	4,614 ±496	9.3% ±1.0	12.0% ±0.2	15.5% ±<0.1
$75,000 to $99,999	4,546 ±487	9.2% ±1.0	10.7% ±0.2	12.6% ±<0.1
$100,000 to $149,999	7,980 ±574	16.1% ±1.1	17.5% ±0.2	17.5% ±<0.1
$150,000 to $199,999	6,628 ±543	13.4% ±1.1	11.9% ±0.1	9.6% ±<0.1
$200,000 or more	15,402 ±591	31.2% ±1.1	22.3% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Cambridge city by age, ACS 2020–2024
Age	Below poverty	Rate	Massachusetts	United States
All ages	13,080 ±1,249	12.8% ±1.2	10.0% ±0.1	12.5% ±0.1
Under 18	2,183 ±500	15.2% ±3.3	11.7% ±0.3	16.1% ±0.1
18 to 59	9,038 ±924	13.0% ±1.3	9.3% ±0.2	11.6% ±0.1
60 and over	1,859 ±289	10.0% ±1.5	10.4% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Cambridge city, ACS 2020–2024
Measure	Cambridge city	Massachusetts	United States
Housing units	54,840 ±793	3,030,406 ±453	143,775,355 ±10,234
Occupied	90.2% ±0.5	91.9% ±0.2	89.9% ±0.1
Vacant	9.8% ±1.2	8.1% ±0.2	10.1% ±0.1
Owner occupied	33.5% ±1.2	62.5% ±0.3	65.2% ±0.3
Renter occupied	66.5% ±1.1	37.5% ±0.2	34.8% ±0.1
Median home value	$1,092,100 ±$42,162	$562,100 ±$2,169	$332,700 ±$236
Median gross rent	$2,787 ±$48	$1,762 ±$9	$1,413 ±$2
Median year built	1950 ±4	1964 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Cambridge city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Massachusetts	United States
Hispanic or Latino	10,505 ±1,086	8.8% ±0.9	13.3% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	63,870 ±1,888	53.8% ±1.6	66.6% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	12,226 ±1,146	10.3% ±1.0	6.4% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	24,049 ±1,369	20.2% ±1.2	7.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	15 to 185	< 0.1% to 0.2%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	11 to 129	< 0.1% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	1,063 ±389	0.9% ±0.3	1.2% ±0.1	0.6% ±<0.1
Two or more races, not Hispanic	6,913 ±711	5.8% ±0.6	5.1% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Cambridge city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Massachusetts	United States
Born in the state	34,852 ±1,265	29.3% ±1.1	58.7% ±0.2	57.3% ±<0.1
Born in another state	45,895 ±1,529	38.6% ±1.3	20.3% ±0.2	26.9% ±<0.1
Born a citizen outside the states	2,804 ±343	2.4% ±0.3	2.9% ±0.1	1.7% ±<0.1
Born abroad	35,245 ±1,451	29.7% ±1.2	18.0% ±0.1	14.1% ±<0.1
Naturalized citizens	13,654 ±1,021	11.5% ±0.9	9.7% ±0.1	7.4% ±<0.1
Not citizens	21,591 ±1,236	18.2% ±1.0	8.3% ±0.1	6.8% ±<0.1

Cambridge city among the places and towns of Massachusetts

4th of 291 places and towns of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Massachusetts page.

Places of Massachusetts near Cambridge city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Boston city	666,442 ±55
Worcester city	207,055 ±50
Springfield city	154,749 ±56
Cambridge city	118,796 ±73
Lowell city	118,368 ±49
Brockton city	105,386 ±39
Quincy city	102,114 ±45
Lynn city	101,709 ±39
New Bedford city	100,998 ±45

Elsewhere on the site

Reported crime in Cambridge city, Massachusetts

Rankings this appears in

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026