Connecticut Counties Map

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Hover/click a county for data.

Name 2022 Population Growth Since 2010 Land Area (mi²) Density (mi²)
Fairfield County941,4152.40%624.971,506.34
Hartford County889,140-0.68%735.121,209.52
New Haven County848,115-1.77%604.501,403.00
New London County261,969-4.39%665.12393.87
Litchfield County178,047-6.17%920.57193.41
Middlesex County161,134-2.71%369.30436.32
Tolland County150,817-1.58%410.28367.60
Windham County115,951-2.19%512.82226.11

Counties in Connecticut

  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)

Sources