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Massachusetts Population Grew 7.4% to Over 7 million From 2010 to 2020

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America Counts today launches a state-by-state look at the demographic changes the new 2020 Census results reveal.

Our state profiles bring you all key population characteristics of your state and your county on one page.

See how they compare to the nation overall and to neighboring counties and states. Through interactive state and county maps for the 50 states, the District of Columbia and Puerto Rico, each page provides a snapshot of change from 2010 to 2020 on five topics.

Here are some key national-level 2020 Census results to help you see how your state or county compares in each topic area:  

  • Population (up 7.4% to 331.4 million).
  • Race and ethnicity (White alone 61.6%; Black alone 12.4%; Hispanic 18.7%; Asian alone 6%; American Indian and Alaska Native alone 1.1%; Native Hawaiian and Other Pacific Islander alone 0.2%; Some Other Race alone 8.4%; Two or More Races 10.2%).
  • Diversity Index (61.1%, up from 54.9%).
  • Under-18 (down 1.4%) and adult population (up 10.1%).
  • Housing units (up 6.7%) and vacancies (down to 9.7%).

 

Massachusetts - Northeast

State Profile

Population and Housing

Race and Ethnicity

Diversity

Age

2020 Census Demographic Data Map Viewer The 2020 Census Demographic Data Map Viewer is a web map application that includes state-, county-, and census tract-level data from the 2020 Census.

State Profiles: 2020 Census


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ALABAMA: 2020 Census
The Yellowhammer State’s population increased 5.1% to 5,024,279 from 2010 to 2020.


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ALASKA: 2020 Census
The Last Frontier State was the least densely populated state in 2020 with a population of 733,391 (1.3 people per square mile), up 3.3% from 2010.


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ARIZONA: 2020 Census
The Grand Canyon State’s population grew 11.9% to 7,151,502 from 2010 to 2020.


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ARKANSAS: 2020 Census
The Natural State’s population grew 3.3% to 3,011,524 from 2010 to 2020.


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CALIFORNIA: 2020 Census
The Golden State’s population was 39,538,223 in 2020, a 6.1% increase since 2010 but slower than its 10% gain in the previous decade.


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COLORADO: 2020 Census
The Centennial State’s population was 5,773,714 in 2020, making it one of 13 states and the District of Columbia that grew by 10.0% or more from 2010 to 2020.


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CONNECTICUT: 2020 Census
Of the 47 U.S. states that gained population from 2010 to 2020, the Constitution State’s 0.9% growth to 3,605,944 was the slowest.


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DELAWARE: 2020 Census
The population of The First State increased 10.2% to 989,948 from 2010 to 2020.


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DISTRICT OF COLUMBIA: 2020 Census
The Nation’s Capital joined 13 states with the biggest growth spurts from 2010 to 2020, with its population jumping 14.6% to nearly 690,000.


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FLORIDA: 2020 Census
The Sunshine State’s 14.6% population growth from 2010 to 2020 pushed it past New York as the nation’s third most populous state.


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GEORGIA: 2020 Census
The Peach State, with a 2020 population of 10,711,908, added 1,024,255 people last decade, making it one of five states with the largest numeric increases.


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HAWAII: 2020 Census
The Aloha State’s population grew 7.0% to 1,455,271 from 2010 to 2020.


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IDAHO: 2020 Census
The Gem State was second to Utah in population growth, jumping 17.3% to 1,839,106 from 2010 to 2020.


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ILLINOIS: 2020 Census
The Prairie State’s population declined to 12.8 million in 2020. Only two other states lost population: West Virginia and Mississippi (along with Puerto Rico).


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INDIANA: 2020 Census
The Hoosier State’s population was 6,785,528 in 2020, up 4.7% since 2010.


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IOWA: 2020 Census
The Hawkeye State grew 4.7% to 3,190,369 from 2010 to 2020.


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KANSAS: 2020 Census
The Sunflower State’s population grew 3.0% to 2,937,880 from 2010 to 2020.


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KENTUCKY: 2020 Census
The Bluegrass State added 166,469 people since 2010, a 3.8% increase to 4,505,836.


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LOUISIANA: 2020 Census
The population of the Pelican State increased 2.7% to 4,657,757 from 2010 to 2020.


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MAINE: 2020 Census
The Pine Tree State’s population was 1,362,359 in 2020, a 2.6% increase since 2010


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MARYLAND: 2020 Census
The Old Line State added more than 400,000 people from 2010 to 2020, raising its population to 6,177,224.


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MASSACHUSETTS: 2020 Census
The Bay State added more than 480,000 people last decade for a total population of 7,029,917 in 2020.


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MICHIGAN: 2020 Census
The Wolverine State grew by 2.0% or 193,691 people from 2010 to 2020, raising its population to 10,077,331.


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MINNESOTA: 2020 Census
The North Star State added 402,569 people from 2010 to 2020, bringing its population to 5,706,494.


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MISSISSIPPI: 2020 Census
The Magnolia State’s population declined 0.2% from 2010 to 2020 to 2,961,279.


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MISSOURI: 2020 Census
The Show Me State’s population increased 2.8% to 6,154,913 from 2010 to 2020.


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MONTANA: 2020 Census
The Big Sky Country State grew 9.6% from 2010 to 2020, raising its population to 1,084,225.


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NEBRASKA: 2020 Census
Population of the Cornhusker State grew 7.4% to 1,961,504 from 2010 to 2020.


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NEVADA: 2020 Census
The Silver State population grew 15.0% to 3,104,614 from 2010 to 2020.


Population
NEW HAMPSHIRE: 2020 Census
Population of the Granite State increased 4.6% to 1,377,529 from 2010 to 2020.


Population
NEW JERSEY: 2020 Census
The Garden State gained almost 500,000 people from 2010 to 2020, bringing its population to 9,288,994, a 5.7% increase.


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NEW MEXICO: 2020 Census
The Land of Enchantment State’s population was 2,117,522 in 2020, up 2.8% from 2010.


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NEW YORK: 2020 Census
The population of the Empire State, the nation’s fourth most populous state, grew 4.2% to 20,201,249 from 2010 to 2020.


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NORTH CAROLINA: 2020 Census
Population of the Old North State grew 9.5% to 10,439,388 from 2010 to 2020.


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NORTH DAKOTA: 2020 Census
The Peace Garden State grew 15.8% from 2010 to 2020, to a population of 779,094.


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OHIO: 2020 Census
The Buckeye State’s 2020 population was 11,799,448, up 2.3% from 2010.

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America Counts tells the stories behind the numbers in a new inviting way. We feature stories on various topics such as families, housing, employment, business, education, the economy, emergency management, health, population, income and poverty.

Contact our Public Information Office for media inquiries or interviews.

 

Surveys/Programs > Decennial

The U.S. Census Bureau provides the 50 states, the District of Columbia, and Puerto Rico with population counts to use in their redrawing of congressional and state legisla­tive district boundaries — a process known as “redistricting.”

While the states are responsible for legislative redistricting, the Census Bureau provides population counts possible for the geographic areas the states need.

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