The United States Census Bureau estimates that the population of Connecticut was 3,580,709 on July 1, 2011, a 0.18% increase since the 2010 United States Census.
As of 2005, Connecticut has an estimated population of 3,510,297, which is an increase of 11,331, or 0.3%, from the prior year and an increase of 104,695, or 3.1%, since the year 2000. This includes a natural increase since the last census of 67,427 people (that is 222,222 births minus 154,795 deaths) and an increase due to net migration of 41,718 people into the state. Immigration from outside the United States resulted in a net increase of 75,991 people, and migration within the country produced a net loss of 34,273 people. Based on the 2005 estimates, Connecticut moves from the 29th most populous state to 30th.
6.6% of its population was reported as being under 5 years old, 24.7% under 18 years old, and 13.8% were 65 years of age or older. Females made up approximately 51.6% of the population, with 48.4% male.
In 1790, 97% of the population in Connecticut was classified as "rural". The first census in which less than half the population was classified as rural was 1890. In the 2000 census, it was only 12.3%. Most of western and southern Connecticut (particularly the Gold Coast) is strongly associated with New York City; this area is the most affluent and populous region of the state. Eastern Connecticut is more culturally influenced by the greater New England area, including the cities of Boston and Providence.
The center of population of Connecticut is located in the town of Cheshire.
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