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Home >> State of Connecticut >> Middlesex County  

Welcome to Middlesex County ...

Time Zone: Middlesex County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.

Middlesex County was founded in 1785 and was created by taking area from Hartford County.

From the Census Estimates for 2019, <1> Middlesex had a population of 162,436 people. This is a decrease of 1.92% since the last Census (which gave a population of 165,616 people in 2010).

At the time of the 2010 Census, Middlesex represented 4.63% of the total population of Connecticut.

Below are some of the communities located in Middlesex County:

  • Chester
    (4 miles [6.4 km] to the southeast)
    • Note: The GPS coordinates that we are using for Chester have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Chester
    • Chester is located in Middlesex County (CT)
    • Population from the 2020 Census: 4,175 people
  • Clinton
    (10 miles [16.1 km] to the south)
    • Note: The GPS coordinates that we are using for Clinton have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Clinton
    • Clinton is located in Middlesex County (CT)
    • Population from the 2020 Census: 12,881 people
  • Cromwell
    (12 miles [19.3 km] to the northwest)
    • Note: The GPS coordinates that we are using for Cromwell have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Cromwell
    • Cromwell is located in Middlesex County (CT)
    • Population from the 2020 Census: 13,772 people
  • Deep River
    (6 miles [9.7 km] to the southeast)
    • Note: The GPS coordinates that we are using for Deep River have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Deep River
    • Deep River is located in Middlesex County (CT)
    • Population from the 2020 Census: 4,419 people
  • Durham
    (7 miles [11.3 km] to the west)
    • Note: The GPS coordinates that we are using for Durham have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Durham
    • Durham is located in Middlesex County (CT)
    • Population from the 2020 Census: 7,137 people
  • East Haddam
    (7 miles [11.3 km] to the east)
    • Note: The GPS coordinates that we are using for East Haddam have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for East Haddam
    • East Haddam is located in Middlesex County (CT)
    • Population from the 2020 Census: 8,956 people
  • East Hampton
    (8 miles [12.9 km] to the north)
    • Note: The GPS coordinates that we are using for East Hampton have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for East Hampton
    • East Hampton is located in Middlesex County (CT)
    • Population from the 2020 Census: 12,747 people
  • Essex
    (9 miles [14.5 km] to the southeast)
    • Note: The GPS coordinates that we are using for Essex have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Essex
    • Essex is located in Middlesex County (CT)
    • Population from the 2020 Census: 6,634 people
  • Continue List   (8 more) ...
    • Haddam
      (Less than 2 miles to the north)
      • Note: The GPS coordinates that we are using for Haddam have been provided by the GNIS.<2> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Haddam
      • Haddam is located in Middlesex County (CT)
      • Population from the 2020 Census: 8,150 people
    • Killingworth
      (5 miles [8 km] to the south)
      • Note: The GPS coordinates that we are using for Killingworth have been provided by the GNIS.<2> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Killingworth
      • Killingworth is located in Middlesex County (CT)
      • Population from the 2020 Census: 6,340 people
    • Middlefield
      (10 miles [16.1 km] to the northwest)
      • Note: The GPS coordinates that we are using for Middlefield have been provided by the GNIS.<2> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Middlefield
      • Middlefield is located in Middlesex County (CT)
      • Population from the 2020 Census: 4,350 people
    • Middletown
      (9 miles [14.5 km] to the northwest)
      • Note: The GPS coordinates that we are using for Middletown have been provided by the GNIS.<2> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Middletown
      • Middletown is located in Middlesex County (CT)
      • Population from the 2020 Census: 46,013 people
    • Old Saybrook
      (13 miles [20.9 km] to the southeast)
      • Note: The GPS coordinates that we are using for Old Saybrook have been provided by the GNIS.<2> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Old Saybrook
      • Old Saybrook is located in Middlesex County (CT)
      • Population from the 2020 Census: 10,028 people
    • Portland
      (10 miles [16.1 km] to the north)
      • Note: The GPS coordinates that we are using for Portland have been provided by the GNIS.<2> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Portland
      • Portland is located in Middlesex County (CT)
      • Population from the 2020 Census: 9,213 people
    • Westbrook
      (11 miles [17.7 km] to the south)
      • Note: The GPS coordinates that we are using for Westbrook have been provided by the GNIS.<2> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Westbrook
      • Westbrook is located in Middlesex County (CT)
      • Population from the 2020 Census: 6,842 people

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.