Connecticut Population 2018


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

Connecticut Facts

Connecticut Population in 2018Source: Elipongo

  • 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

  • Population949,191
  • Density1518.78 per sq km
  • Growth Since 20103.20%
  • State Rank1
  • % of State26.46%

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%.

Connecticut Population Pyramid 2018

0k5k10k15k20k25k30kConnecticut Male Population0k5k10k15k20k25k30kConnecticut Female Population80757065605550454035302520151050

To compare Connecticut to other states, click here.

Population by Race

Race Population
Black or African American378,932
Some Other Race171,008
Two or More Races111,524
American Indian and Alaska Native9,887
Native Hawaiian and Other Pacific Islander1,259

According to 2004 data, over 11% of the state's population were foreign-born. Irish American, English American, and Italian American communities are quite large in the state of Connecticut. In fact, its population of Italian Americans is the second highest in the country. The state also has a large population of Hungarian Americans and Polish Americans.

Recent immigrants to the state have come over from Jamaica, Guatemala, Laos, Vietnam, Brazil, Panama and other countries around the world. While the state's highest demographic is non-Hispanic white, this number has declined significantly from the 98% recorded in 1940 as the state becomes more diverse.

Connecticut also has a high percentage of Hispanic and Latino residents, and it has the largest population of Puerto Ricans in the nation. Data from 2011 indicates that over 46% of Connecticut's population under the age of 1 were minorities. The urban areas of Connecticut are primarily where African American and Hispanic residents live.

Race Data via US Census (2016 ACS 1-Year Survey)

Languages Spoken in Connecticut

Language Population Percentage
Kru, Ibo, Yoruba5,1650.15%

This chart shows the top 10 languages that are spoken at home in Connecticut. The data comes from the most recent release of the American Community Survey (ACS).

Connecticut Economy

High school graduate or higher 89.5%
Bachelor's degree or higher 37%
With a Disability 7%
Persons Without Health Insurance 8%
In Civilian Labor Force 67.5%
In Civilian Labor Force (Female) 62.9%
Food Services Sales $9,542,068
Health Care Revenue $29,573,119,000
Manufacturers Shipments $55,160,095,000
Merchant Wholesaler Sales $161,962,244,000
Total Retail Sales $51,632,467,000
Total Retail Sales per Capita $14,381
Mean Travel Time to Work 25.1 minutes
Median Household Income $69,899
Per Capita Income (past 12 months) $38,480
Persons in Poverty 10.8%

This chart shows the employment and labor force participation rates in Connecticut for residents over 16 years of age. The 2015 unemployment rate is 5.9% and the labor force participation rate is 67.5%.

Connecticut Business

Total Nonemployer Establishments 269,845
All firms 326,693
Men-owned Firms 187,845
Women-owned Firms 106,678
Minority-owned Firms 56,113
Nonminority-owned Firms 259,614
Veternan-owned Firms 31,056
Nonveteran-owned Firms 281,182

Connecticut Housing

Housing Units 1,487,891
Owner Occupied Housing Rate 67.3%
Median Value Owner Occupied Housing Units $274,500
Median Monthly Owner Costs (w/Mortgage) $2,110
Median Monthly Owner Costs (no mortgage) $832
Median Gross Rent $1,069
Building Permits 6,077
Households 1,356,206
Persons per Household 2.56 persons
Living in Same House 1 Year Ago 87.8%
Language Other than English Spoken at Home 21.6%
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)