United States · state

Connecticut population 2026

Q: What is the population of Connecticut in 2026?

The latest official figure is 3,688,496, for 1 July 2025 (US Census Bureau). If last year’s change continues, Connecticut would have about 3.7 million people by 1 July 2026; that is our arithmetic, not an official figure. The Census Bureau publishes new state estimates each December.

Connecticut has 3,688,496 people on the latest official figure, for 1 July 2025, 14,047 more than a year earlier (+0.38%). It is 29th of the US’s 50 states and DC by population, home to 1.1% of the US’s people.

If last year’s change continues: about 3.7 million by 1 July 2026. That is our arithmetic, not an official figure.

Connecticut in numbers

Population: 3.7 million 1 July 2025
Change in a year: +0.38% +14,047 people
Change since 2020: +3.04% from 3.6 million
Share of the US: 1.1% 29th of 50 states and DC
Population density: 294per km² 12,542 km²
Births in the year: 35 thousand deaths: 32 thousand
International migration: +18 thousand net arrivals from abroad
Moves within the US: −6 thousand more people left than moved in

In the latest year births outnumbered deaths by 2,283, 17,534 more people arrived from abroad than left, and 5,945 more people moved to the rest of the US than moved in.

That is about as many people as Eritrea (3.7 million).

Population of Connecticut by year

3.7M

› Show the numbers as a table

Year	Population
2010	3,579,173
2011	3,588,632
2012	3,595,211
2013	3,595,792
2014	3,595,697
2015	3,588,561
2016	3,579,830
2017	3,575,324
2018	3,574,561
2019	3,566,022
2020	3,579,643
2021	3,607,765
2022	3,618,707
2023	3,641,369
2024	3,674,449
2025	3,688,496

Year	Population	Change	%
2025	3,688,496	+14,047	+0.38%
2024	3,674,449	+33,080	+0.91%
2023	3,641,369	+22,662	+0.63%
2022	3,618,707	+10,942	+0.30%
2021	3,607,765	+28,122	+0.79%
2020	3,579,643	+13,621	+0.38%
2019	3,566,022	−8,539	−0.24%
2018	3,574,561	−763	−0.02%
2017	3,575,324	−4,506	−0.13%
2016	3,579,830	−8,731	−0.24%
2015	3,588,561	−7,136	−0.20%
2014	3,595,697	−95	−0.00%
2013	3,595,792	+581	+0.02%
2012	3,595,211	+6,579	+0.18%
2011	3,588,632	+9,459	+0.26%

2010–2019 are Vintage 2020 estimates and 2020–2025 are Vintage 2025, so the step between 2019 and 2020 is partly a change of base.

Connecticut among the US’s states

Full ranking →

States of the US by population
#
1	California	39,355,309	−0.02%	11.5%	98
2	Texas	31,709,821	+1.25%	9.3%	47
3	Florida	23,462,518	+0.84%	6.9%	169
4	New York State	20,002,427	+0.01%	5.9%	164
5	Pennsylvania	13,059,432	+0.10%	3.8%	113
6	Illinois	12,719,141	+0.13%	3.7%	89
7	Ohio	11,900,510	+0.34%	3.5%	113
8	Georgia (US State)	11,302,748	+0.88%	3.3%	76
9	North Carolina	11,197,968	+1.32%	3.3%	89
10	Michigan	10,127,884	+0.28%	3.0%	69
11	New Jersey	9,548,215	+0.44%	2.8%	501
12	Virginia	8,880,107	+0.69%	2.6%	87
13	Washington State	8,001,020	+0.92%	2.3%	47
14	Arizona	7,623,818	+0.89%	2.2%	26
15	Tennessee	7,315,076	+0.88%	2.1%	69
16	Massachusetts	7,154,084	+0.22%	2.1%	354
17	Indiana	6,973,333	+0.56%	2.0%	75
18	Missouri	6,270,541	+0.43%	1.8%	35
19	Maryland	6,265,347	+0.32%	1.8%	249
20	Colorado	6,012,561	+0.40%	1.8%	22
21	Wisconsin	5,972,787	+0.26%	1.7%	43
22	Minnesota	5,830,405	+0.57%	1.7%	28
23	South Carolina	5,570,274	+1.46%	1.6%	72
24	Alabama	5,193,088	+0.58%	1.5%	40
25	Louisiana	4,618,189	+0.07%	1.4%	41
26	Kentucky	4,606,864	+0.50%	1.3%	45
27	Oregon	4,273,586	+0.19%	1.3%	17
28	Oklahoma	4,123,288	+0.62%	1.2%	23
29	Connecticut	3,688,496	+0.38%	1.1%	294
30	Utah	3,538,904	+1.02%	1.0%	17
31	Nevada	3,282,188	+0.88%	1.0%	12
32	Iowa	3,238,387	+0.25%	0.9%	22
33	Arkansas	3,114,791	+0.60%	0.9%	23
34	Kansas	2,977,220	+0.40%	0.9%	14
35	Mississippi	2,954,160	+0.14%	0.9%	24
36	New Mexico	2,125,498	−0.06%	0.6%	7
37	Idaho	2,029,733	+1.44%	0.6%	10
38	Nebraska	2,018,006	+0.62%	0.6%	10
39	West Virginia	1,766,147	−0.07%	0.5%	28
40	Hawaii	1,432,820	−0.15%	0.4%	86
41	New Hampshire	1,415,342	+0.48%	0.4%	61
42	Maine	1,414,874	+0.46%	0.4%	18
43	Montana	1,144,694	+0.63%	0.3%	3
44	Rhode Island	1,114,521	+0.37%	0.3%	416
45	Delaware	1,059,952	+0.94%	0.3%	210
46	South Dakota	935,094	+0.86%	0.3%	5
47	North Dakota	799,358	+0.75%	0.2%	5
48	Alaska	737,270	+0.10%	0.2%	1
49	District of Columbia	693,645	+0.34%	0.2%	4,381
50	Vermont	644,663	−0.29%	0.2%	27
51	Wyoming	588,753	+0.35%	0.2%	2

Largest cities in Connecticut

City proper, not the wider metro area; latest figure in GeoNames (CC BY 4.0), so years differ.

Bridgeport147,629
New Haven130,322
Stamford128,874
North Stamford121,230
Hartford121,054
Waterbury108,802

Questions

What is the population of Connecticut in 2026?

The latest official figure is 3,688,496, for 1 July 2025 (US Census Bureau). If last year’s change continues, Connecticut would have about 3.7 million people by 1 July 2026; that is our arithmetic, not an official figure. The Census Bureau publishes new state estimates each December.

Is Connecticut’s population growing or shrinking?

It grew by 14,047 people (+0.38%) in the latest year, and has changed +3.04% since 2020. In the latest year births outnumbered deaths by 2,283, 17,534 more people arrived from abroad than left, and 5,945 more people moved to the rest of the US than moved in.

How does Connecticut rank in the US?

Connecticut is 29th of the US’s 50 states and DC, with 1.1% of the people. California is the largest, with 39.4 million.

What is the population density of Connecticut?

About 294 people per km², on 12,542 km². Land area, US Census Bureau Gazetteer.

What is the largest city in Connecticut?

Bridgeport, with about 148 thousand people in the city proper. Metro areas are larger, and years differ (GeoNames).

Source and method

US Census Bureau, Vintage 2025 population estimates. US government work, public domain. Land area, US Census Bureau Gazetteer. The Census Bureau publishes new state estimates each December. Ranks, shares and changes are our arithmetic on the published figures. National figures can differ from the UN’s projection for the US, which uses a different method. The 2026 figure above carries last year’s change forward; it does not come from the source.

Cite this page: Connecticut population, US Census Bureau, 1 July 2025. GlobeMetrics, https://globemetrics.org/world-population/united-states/connecticut/

US states by population · United States population · All countries’ states and regions