Connecticut Population 1900-2020

Chart and table of population level and growth rate for the state of Connecticut from 1900 to 2020.
  • The population of Connecticut in 2020 was 3,557,006, a 0.25% decline from 2019.
  • The population of Connecticut in 2019 was 3,566,022, a 0.24% decline from 2018.
  • The population of Connecticut in 2018 was 3,574,561, a 0.02% decline from 2017.
  • The population of Connecticut in 2017 was 3,575,324, a 0.13% decline from 2016.
Data Source: U.S. Census Bureau - Population Estimates

MLA Citation:
State Population Ranking
State Name Population
California 39,368,078
Texas 29,360,759
Florida 21,733,312
New York 19,336,776
Pennsylvania 12,783,254
Illinois 12,587,530
Ohio 11,693,217
Georgia 10,617,423
North Carolina 10,600,823
Michigan 9,966,555
New Jersey 8,882,371
Virginia 8,590,563
Washington 7,693,612
Arizona 7,421,401
Massachusetts 6,893,574
Tennessee 6,886,834
Indiana 6,754,953
Missouri 6,151,548
Maryland 6,045,680
Wisconsin 5,832,655
Colorado 5,807,719
Minnesota 5,657,342
South Carolina 5,218,040
Alabama 4,921,532
Louisiana 4,645,318
Kentucky 4,477,251
Oregon 4,217,737
Oklahoma 3,980,783
Connecticut 3,557,006
Utah 3,205,958
Iowa 3,163,561
Nevada 3,138,259
Arkansas 3,017,804
Mississippi 2,966,786
Kansas 2,913,805
New Mexico 2,096,829
Nebraska 1,937,552
Idaho 1,826,913
West Virginia 1,784,787
Hawaii 1,407,006
New Hampshire 1,366,275
Maine 1,350,141
Montana 1,080,577
Rhode Island 1,057,125
Delaware 986,809
North Dakota 765,309
Alaska 731,158
Wyoming 582,328
Connecticut - Historical Population Data
Year Population Growth Rate
2020 3,557,006 -0.25%
2019 3,566,022 -0.24%
2018 3,574,561 -0.02%
2017 3,575,324 -0.13%
2016 3,579,830 -0.24%
2015 3,588,561 -0.20%
2014 3,595,697 0.00%
2013 3,595,792 0.02%
2012 3,595,211 0.18%
2011 3,588,632 0.26%
2010 3,579,173 0.49%
2009 3,561,807 0.46%
2008 3,545,579 0.52%
2007 3,527,270 0.28%
2006 3,517,460 0.30%
2005 3,506,956 0.31%
2004 3,496,094 0.34%
2003 3,484,336 0.74%
2002 3,458,749 0.75%
2001 3,432,835 0.62%
2000 3,411,777 3.95%
1999 3,282,031 0.29%
1998 3,272,563 0.12%
1997 3,268,514 0.05%
1996 3,267,030 0.05%
1995 3,265,293 -0.09%
1994 3,268,346 -0.12%
1993 3,272,325 -0.08%
1992 3,274,997 -0.41%
1991 3,288,640 -0.01%
1990 3,289,056 0.17%
1989 3,283,403 0.35%
1988 3,271,953 0.76%
1987 3,247,291 0.73%
1986 3,223,740 0.71%
1985 3,201,131 0.66%
1984 3,180,014 0.56%
1983 3,162,354 0.74%
1982 3,139,013 0.33%
1981 3,128,836 0.50%
1980 3,113,174 0.56%
1979 3,095,917 0.14%
1978 3,091,627 0.19%
1977 3,085,722 0.08%
1976 3,083,335 0.03%
1975 3,082,500 0.27%
1974 3,074,047 0.20%
1973 3,067,814 -0.03%
1972 3,068,699 0.25%
1971 3,060,938 0.95%
1970 3,032,217 1.07%
1969 3,000,000 1.21%
1968 2,964,000 0.99%
1967 2,935,000 1.10%
1966 2,903,000 1.61%
1965 2,857,000 2.11%
1964 2,798,000 2.60%
1963 2,727,000 3.02%
1962 2,647,000 2.36%
1961 2,586,000 1.65%
1960 2,544,000 0.83%
1959 2,523,000 3.15%
1958 2,446,000 3.69%
1957 2,359,000 1.86%
1956 2,316,000 0.70%
1955 2,300,000 2.27%
1954 2,249,000 3.74%
1953 2,168,000 4.18%
1952 2,081,000 2.61%
1951 2,028,000 0.60%
1950 2,016,000 -0.79%
1949 2,032,000 0.89%
1948 2,014,000 2.39%
1947 1,967,000 3.20%
1946 1,906,000 7.74%
1945 1,769,000 -0.51%
1944 1,778,000 -0.78%
1943 1,792,000 0.00%
1942 1,792,000 2.63%
1941 1,746,000 2.22%
1940 1,708,000 0.71%
1939 1,696,000 0.71%
1938 1,684,000 0.36%
1937 1,678,000 0.36%
1936 1,672,000 0.36%
1935 1,666,000 0.97%
1934 1,650,000 0.49%
1933 1,642,000 0.31%
1932 1,637,000 0.55%
1931 1,628,000 0.93%
1930 1,613,000 1.19%
1929 1,594,000 1.08%
1928 1,577,000 1.28%
1927 1,557,000 1.70%
1926 1,531,000 1.66%
1925 1,506,000 1.69%
1924 1,481,000 1.79%
1923 1,455,000 1.68%
1922 1,431,000 1.13%
1921 1,415,000 1.73%
1920 1,391,000 2.35%
1919 1,359,000 2.26%
1918 1,329,000 0.15%
1917 1,327,000 2.55%
1916 1,294,000 2.86%
1915 1,258,000 2.03%
1914 1,233,000 2.07%
1913 1,208,000 2.72%
1912 1,176,000 2.35%
1911 1,149,000 2.41%
1910 1,122,000 2.28%
1909 1,097,000 1.86%
1908 1,077,000 1.89%
1907 1,057,000 2.32%
1906 1,033,000 2.28%
1905 1,010,000 2.33%
1904 987,000 1.54%
1903 972,000 2.10%
1902 952,000 2.26%
1901 931,000 2.31%
1900 910,000 0.00%