Population Comparison
Demographics

Connecticut vs Massachusetts: Population

Massachusetts has a larger population than Connecticut by 3,423,973 people.

Connecticut flag
Connecticut
CT • Northeast
3,605,944
Total resident population (2020 Census).
Massachusetts flag
Massachusetts
MA • Northeast
Winner
7,029,917
Total resident population (2020 Census).

Visual Comparison

Connecticut 3,605,944
Massachusetts 7,029,917

Difference: +3,423,973 people — Massachusetts leads.

National Rankings

Where They Rank Nationally

See where both states fall among all 50 states for population.

Connecticut #29 · 3,605,944
Massachusetts #15 · 7,029,917
Lowest Highest

Top 10 States — Population

#1 California flag California
39,538,223
#2 Texas flag Texas
29,145,505
#3 Florida flag Florida
21,538,187
#4 New York flag New York
20,201,249
#5 Pennsylvania flag Pennsylvania
13,002,700
#6 Illinois flag Illinois
12,812,508
#7 Ohio flag Ohio
11,799,448
#8 Georgia flag Georgia
10,711,908
#9 North Carolina flag North Carolina
10,439,388
#10 Michigan flag Michigan
10,077,331
Selected states
#29 Connecticut flag Connecticut
3,605,944
#15 Massachusetts flag Massachusetts
7,029,917

Connecticut ranks 29th and Massachusetts ranks 15th nationally for population.

Related Context

Population in Context

Raw headcount only tells part of the story — density and education round it out.

What This Means

Connecticut vs Massachusetts: Population in context

Massachusetts has a population of 7,029,917, compared with 3,605,944 in Connecticut, a gap of 95.0%. Total resident population (2020 Census).

Connecticut
3,605,944
Massachusetts
7,029,917
Difference
+3,423,973 people

People Also Ask

Connecticut vs Massachusetts Population — Common Questions

Q What is Connecticut's population?

Connecticut's population is 3,605,944.

Q What is Massachusetts's population?

Massachusetts's population is 7,029,917.

Q Which state has a higher population — Connecticut or Massachusetts?

Massachusetts has a larger population than Connecticut by 3,423,973 people.

Q How much more population does Massachusetts have compared to Connecticut?

+3,423,973 people.

Sources: Core demographic data comes from the 2020 U.S. Census, with land area from U.S. Census Bureau TIGER files. Income, housing, affordability, and tax fields are maintained in our comparison dataset; purchasing-power figures use BEA Regional Price Parities. Minimum wage data comes from the U.S. Department of Labor, gas prices from AAA, and electricity rates from the U.S. Energy Information Administration. Political control and election fields use 2024 presidential results together with National Conference of State Legislatures data. Gun-law labels use the Giffords scorecard, alcohol system data comes from NABCA, and marijuana status uses NCSL's state cannabis laws tracker.