Cambridge Flag

Cambridge

County Seat:
Yes
Area (mi²):
6.397
State:
Massachusetts

Cambridge is a city located in Middlesex County, Massachusetts. Cambridge has a 2026 population of 123,996. It is also the county seat of Middlesex County. Cambridge is currently growing at a rate of 1.15% annually and its population has increased by 6.71% since the most recent census, which recorded a population of 116,202 in 2020.

The median household income in Cambridge is $130,748 with a poverty rate of 12.8%. The median age in Cambridge is 30.4 years: 30 years for males, and 30.9 years for females. For every 100 females there are 101.7 males.

124K
Total Population
19,384
Density (mi²)
1.4K 1.15%
Growth

Cambridge Population

Cambridge Population

Year ↓
Population
Growth
Annual Change
2026123,9961,4081.15%
2025122,5887510.62%
2024121,8376510.54%
2023121,1861,3251.11%
2022119,8616,8906.1%
2021112,971-3,231-2.78%
2020116,202-2,193-1.85%
2019118,9887970.67%
2018118,1911,2481.07%
2017116,9431,1831.02%
2016115,7602,2321.97%
2015113,5284870.43%
2014113,0419650.86%
2013112,0764,1633.86%
2012107,9132,0091.9%
2011105,9048870.84%
2010105,017-145-0.14%
2000101,3555,5535.8%
199095,8024800.5%
198095,322-5,039-5.02%
1970100,361-7,355-6.83%
1960107,716-13,024-10.79%
1950120,7409,8618.89%
1940110,879-2,764-2.43%
1930113,6433,9493.6%
1920109,6944,8554.63%
1910104,83912,95314.1%
190091,88621,85831.21%
189070,02817,35932.96%
188052,66913,03532.89%
187039,63413,57452.09%
186026,06010,84571.28%
185015,2156,80680.94%
18408,4092,33738.49%
18306,07200%

Median Age

Overall: 30.4 years
Female: 30.9 years
Male: 30 years

Cambridge Adults

There are 104,106 adults, (14,440 of whom are seniors) in Cambridge.

Sex Ratio

Female: 58,900 (49.6%)
Male: 59,896 (50.4%)

Demographics

The racial composition of Cambridge includes 55.72% White, 20.38% Asian, 10.48% Black or African American, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White66,19355.72%
Asian24,21120.38%
Two or more races12,58910.6%
Black or African American12,44710.48%
Other race3,0882.6%
Native American1980.17%
Native Hawaiian or Pacific Islander700.06%
Race
Population ↓
Percentage (of total)
Two or more races5,6764.78%
White2,3231.96%
Other race2,0251.7%
Black or African American2210.19%
Asian1620.14%
Native American980.08%
Race
Population ↓
Percentage (of total)
White63,87053.76%
Asian24,04920.24%
Black or African American12,22610.29%
Two or more races6,9135.82%
Other race1,0630.89%
Native American1000.08%
Native Hawaiian or Pacific Islander700.06%

Cambridge Marital Status

Economics and Income Statistics

Cambridge's average per capita income is $83,900. Household income levels show a median of $130,748. The poverty rate stands at 12.8%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$207,571-
Families$175,457$243,383
Households$130,748$183,408
Non Families$106,015$140,636

$83,900

Average Income

$130,748

Median Household Income

12.8%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)