Connecticut Population 2018

3,588,683

Our 2018 estimate for Connecticut's population is 3.59 million. This figure is based on the 2015 official estimates released by the US Census, and the current rate of decline.

The last confirmed population data for Connecticut was recorded during the 2010 Census, which revealed that the state had a total population of 3,574,097. The latest Census Bureau estimate took that number to 3,590,886, which makes Connecticut the 29th largest state in the United States.

Over the past couple years, Connecticut has actually started to decline in population, currently losing .11% of its population per year. This makes the state one of just 7 that is declining in 2016.

Connecticut Population Density and Demographics

The population density of Connecticut makes for some very interesting reading. Connecticut has a very small land mass -- just 5,543 square miles (14,357 square kilometers) making this only the 48th largest state in the Union by size.

However, Connecticut crams a significant number of citizens into its surface area. The terrain is very flat, and very few areas of the state are inhospitable. As a result, there are an impressive 738.1 people for every square mile (285 per square kilometer), and this ranks Connecticut at 4th place in terms of population density.

Connecticut Population History

Connecticut was one of the 13 original States. Apart from claims to territory in the West, relinquished by 1800, its boundaries have remained substantially unchanged; small cessions to Massachusetts were made shortly after 1800.

Census coverage included all of Connecticut from 1790 on.

Connecticut Population Chart

Connecticut Population History

Because of its location on the East Coast, many of the early settlers would have set up home in Connecticut - something that is clear from the early population figures.

In 1790, the population of Connecticut was recorded as 237,946, which ranked it 8th among the 16 states recorded in the 1790 census.

From this point, the population within the state grew but at a slower rate than in many other parts of the country. By 1800, the numbers had grown by just 5.5% to 251,002, and similar rises were recorded throughout the first half of the 19th century.

In the latter half of the 1800s, however, numbers were on the rise by significant margins and increases of 20% on a census by census basis were common. By 1900, the Connecticut population exceeded one million for the first time.

The greatest decade of growth for Connecticut was the 1960s, where the population grew at 2.36% annually. This pushed the state over 3 million by 1970. Since 1970, the state's population has continued to grow at a fairly steady rate, to the nearly 3.6 million estimated today.

In 2005, natural growth figures were released and they showed that in the five years since the previous census in 2000, there was an increase in numbers of 67,427. This was calculated based on 222,222 births in the five year period minus 154,795 deaths and a net migration figure of 41,718.

Connecticut Population Projections

Predictions about the future of Connecticut are varied. The last official figure from the 2010 Census and estimates from July 2015 show a 0.5% growth rate. If Connecticut continues to grow these rates, it is estimated that the population will exceed 3.7 million in 2020, and approach 3.75 million by 2025.

On the other hand, others are predicting a continuation of the decline since 2014. The decline is mostly driven by domestic out-migration to New York and Massachusetts, with reasons ranging from high taxes to challenging winters and a worsening real estate market.

Population Data via US Census

Connecticut Growth Rate

Connecticut Population Rank

Year Pop % Change
20203,589,6810.01%
20193,589,1820.01%
20183,588,6830.01%
20173,588,1840.01%
20163,587,685-100.00%
20163,588,570-0.15%
20153,593,862-0.18%
20143,600,188-0.06%
20133,602,4700.13%
20123,597,7050.16%
20113,591,9270.33%
20103,580,1710.50%
20003,405,5650.35%
19903,287,1160.56%
19803,107,5760.25%
19703,031,7091.80%
19602,535,2342.36%
19502,007,2801.62%
19401,709,2420.62%
19301,606,9031.53%
19201,380,6312.16%
19101,114,7562.07%
1900908,4201.99%
1890746,2581.83%
1880622,7001.48%
1870537,4541.57%
1860460,1472.18%
1850370,7921.81%
1840309,9780.41%
1830297,6750.79%
1820275,2020.49%
1810262,0420.43%
1800251,0020.54%
1790237,9461.42%
1780206,7011.18%
1770183,8812.58%
1760142,4702.50%
1750111,2802.19%
174089,5801.72%
173075,5302.53%
172058,8304.08%
171039,4504.27%
170025,9701.84%
169021,6452.30%
168017,2463.19%
167012,6034.68%
16607,9806.79%
16504,13910.89%
16401,4720.00%

Connecticut Facts

Connecticut Population in 2018Source: By Charles Barneby / Cbarneby at en.wikipedia [Public domain], from Wikimedia Commons

  • Connecticut was the state that implemented the first speed limit. This occurred in 1901, and the limit was 12 miles per hour.
  • An average of 2,400 hours -- or about 100 days -- of sunshine occurs in Connecticut every year.
  • Connecticut has two state capitals -- New Haven and Hartford -- from 1703 to 1875. Today, Hartford is the only state capital.
  • The first State House in the US was built in Connecticut in 1788.
  • Connecticut's Yale University issued the first medical diploma in 1729.
  • Connecticut had the first public art museum, which was established in 1842.
  • The Hartford Courant is the oldest newspaper published in the country.
  • Former President George W. Bush was born in New Haven, and he holds the distinction of being the only US President born in the state of Connecticut.
  • New Haven was incorporated as a city in 1784.
  • Burlington was first inhabited by the Tunxis Tribe and was supposedly used as hunting grounds.

Connecticut Population Density by County

Fairfield County

  • Population949,921
  • Density1519.95 per sq km
  • Growth Since 20103.28%
  • State Rank1
  • % of State26.47%

Connecticut Population Growth Rate by County

Connecticut only has eight counties, so it is quite easy to analyze exactly how much growth has increased or decreased across the state. From the time of the 2010 Census and estimated taken in 2015, it is shown that just two counties in the state have posted increases in their populations. Fairfield County, with 3.08% growth, saw the highest increase in population. This was trailed by a significant amount in Hartford County, which saw just 0.04% growth.

The remaining six counties posted declines in population during the same 5-year period. The northwestern county of Litchfield saw the largest drop of 3.25%. Tolland County and Windham County in the northeastern region of the state, posted declines of 1.17% and 1.7%, respectively. While the remaining counties saw declines that were less than 1%.

Population by Race

Race Population
White2,768,080
Black or African American372,696
Some Other Race177,594
Asian152,782
Two or More Races106,988
American Indian and Alaska Native9,399
Native Hawaiian and Other Pacific Islander1,031

Race Data via US Census (2016 ACS 5-Year Survey)

Connecticut Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Connecticut Median Age

40.6


Total

38.8


Male

42.1


Female

Connecticut Adults

There are 2,813,439 adults, (556,228 of which are seniors) in Connecticut.

Connecticut Age Dependency

58.8

Age Dependency Ratio

24.6

Old Age Dependency Ratio

34.2

Child Dependency Ratio

Connecticut Sex Ratio

Female

1,838,300

51.23%

Male

1,750,270

48.77%

Connecticut Households and Families

Connecticut Renter vs Owner Occupied by Household Type

Connecticut Household Types

Type Owner Renter
Married83.8%16.2%
All66.5%33.5%
Male57.3%42.7%
Non Family51%49%
Female44.6%55.4%

66.5%

Rate of Home Ownership

Connecticut Households by Type

Type Count Average Size Owned
All1,354,7132.5666.5
Married660,8463.2283.8
Non Family460,3001.2551
Female173,5433.344.6
Male60,0243.2657.3

3.16

Average Family Size

2.56

Average Household Size

5.6%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

Connecticut Households

Connecticut Education

Connecticut Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade103,2794.19%
9th to 12th Grade139,6535.66%
High School Graduate673,22027.30%
Some College427,23217.32%
Associates Degree184,4267.48%
Bachelors Degree524,37021.26%
Graduate Degree413,94916.79%

Connecticut Educational Attainment by Race

Name Total High School Bachelors
White1,807,0661,694,310765,290
Hispanic298,678213,26350,100
Black232,404199,25747,529
Other Race105,52468,92611,528
Asian102,00191,46365,934
Multiple Races40,22434,87212,073
Native American5,8674,608780
Islander619557250

The highest rate of high school graduation is among white people with a rate of 93.76%.

The highest rate of bachelors degrees is among white people with a rate of 64.64%.

Connecticut Earnings by Educational Attainment

Name Average Male Female
Overall$46,132$54,040$38,399
Less Than High School$22,720$26,432$18,759
High School Grad$34,309$41,051$27,248
Some College$40,618$49,684$34,007
Bachelors Degree$60,969$76,046$48,740
Graduate Degree$78,814$100,200$65,794

$46,132

Average Earnings

$54,040

Average Male

$38,399

Average Female

Connecticut Language

Connecticut Language by Age

Connecticut Language

77.93% of Connecticut residents speak only English, while 22.07% speak other languages. The largest non-English language is Spanish, which is spoken by 11.52% of the population.

Connecticut Poverty

Connecticut Poverty by Race

Name Total In Poverty Poverty Rate
White2,395,325142,8665.96%
Hispanic523,171128,12524.49%
Black355,82372,22320.30%
Other170,14645,22726.58%
Multiple102,00218,85418.48%
Asian147,56411,2707.64%
Native8,9221,57917.70%
Islander96211812.27%

10.36%

Overall Poverty Rate

9.40%

Male Poverty Rate

11.27%

Female Poverty Rate

Poverty in Connecticut

The race most likely to be in poverty in Connecticut is Other, with 26.58% below the poverty level.

The race least likely to be in poverty in Connecticut is White, with 5.96% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.22%. Among those working part-time, it was 11.87%, and for those that did not work, the poverty rate was 18.78%.

Connecticut Poverty Rate by Education

Name Poverty
Less Than High School24.15%
High School10.93%
Some College7.81%
Bachelors or Greater3.34%

Connecticut Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed30.94%
Male Unemployed22.75%
Female Employed5.05%
Male Employed3.63%

Connecticut Income

Connecticut Income by Household Type

Name Median Mean
Households$71,755$102,616
Families$91,274$123,803
Married Families$109,657$145,850
Non Families$40,537$57,865

Connecticut Marital Status

Connecticut Marital Status

Marriage Rates

47.9%

Overall Marriage Rate

50.0%

Male Marriage Rate

45.9%

Female Marriage Rate

Connecticut Married by Age and Sex

Connecticut Marriage

The age group where males are most likely to be married is 55To64, while the female age group most likely to be married is 45To54.

Connecticut Marital Status by Race

Connecticut Veterans

Connecticut Veterans by War

188,759

Number of Veterans

177,605

Male Veterans

11,154

Female Veterans

Name Veterans
Vietnam66,588
First Gulf War24,268
Korea23,225
Second Gulf War19,356
World War II17,740

Connecticut Veterans by Age

Name Veterans
75+56,804
65 to 7450,971
35 to 5436,744
55 to 6433,416
18 to 3410,824

Connecticut Veterans by Race

Name Veterans % of Total
White168,6587.59%
Black13,5254.87%
Hispanic9,3452.56%
2 or More2,4524.52%
Other2,3031.82%
Asian1,2601.07%
Indian4706.79%
Hawaiian9112.26%

Connecticut Veterans by Education

5.03%

Veteran Poverty Rate

26.34%

Veteran Disability Rate

Connecticut Employment Status

Connecticut Employment by Age

67.2%

Labor Force Participation

61.6%

Employment Rate

8%

Unemployment Rate

Connecticut Employment by Race

Connecticut Employment by Education

Connecticut Nativity

Connecticut Citizenship Status

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