Town of Haddam
Brainerd Memorial Library
Brainerd Memorial Library
Official seal of Haddam
Coordinates: 41°27′58″N 72°32′39″W / 41.46611°N 72.54417°W / 41.46611; -72.54417
Country United States
U.S. state Connecticut
RegionLower CT River Valley
 • TypeSelectman-town meeting
 • First selectmanRobert McGarry (R)
 • SelectmanSean Kennedy-Wonneberger (D)
 • SelectmanKate Anderson (R)
 • Total46.4 sq mi (120.2 km2)
 • Land44.0 sq mi (114.0 km2)
 • Water2.3 sq mi (6.0 km2)
Elevation371 ft (113 m)
 • Total8,452
 • Density192/sq mi (74.1/km2)
Time zoneUTC-5 (Eastern)
 • Summer (DST)UTC-4 (Eastern)
ZIP code
06424, 06438, 06441
Area code(s)860/959
FIPS code09-35230
GNIS feature ID0213439[2]

Haddam is a town in Middlesex County, Connecticut, United States. The town is part of the Lower Connecticut River Valley Planning Region. The population was 8,452 at the time of the 2020 census.[4] The town was also home to the now-decommissioned Connecticut Yankee Nuclear Power Plant.[5]


Haddam, in Middlesex County, is located in south-central Connecticut in the lower Connecticut River Valley. It is also home to Cockaponset State Forest. It was incorporated in October 1668 as Hadham,[citation needed] but unusually for the many New England towns ending in -ham, the spelling eventually came to reflect the phonetic pronunciation. Haddam is the only town in Connecticut divided by the Connecticut River, and only one of three divided towns along the entire Connecticut River, the other two being Northfield, Massachusetts, and Pittsburg, New Hampshire. Haddam contains five villages: Hidden Lake, Higganum, Shailerville, and Tylerville on the west side of the river, and Haddam Neck on the east. For the first two hundred years of the town's existence, the Connecticut River was a major source of income and transportation. Today, the town of Haddam is a residential community.[6]

The town was named for Much Hadham and Little Hadham in Hertfordshire, England, collectively known as The Hadhams.[7]


Historical population
U.S. Decennial Census[8]

See also: List of Connecticut locations by per capita income

As of the census of 2000, there were 7,157 people, 2,701 households, and 2,101 families residing in the town. The population density was 162.5 inhabitants per square mile (62.7/km2). There were 2,822 housing units at an average density of 24.7 persons/km2 (64.1 inhabitants/mi2). The racial makeup of the town was 96.86% White, 1.03% African American, 0.11% Native American, 0.82% Asian, 0.03% Pacific Islander, 0.17% from other races, and 0.98% from two or more races. 1.06% of the population were Hispanic or Latino of any race.

There were 2,701 households, out of which 34.5% had children under the age of 18 living with them, 68.1% were married couples living together, 6.9% had a woman whose husband does not live with her, and 22.2% were non-families. 18.1% of all households were made up of individuals, and 7.0% had someone living alone who was 65 years of age or older. The average household size was 2.64 and the average family size was 3.00.

In the town, the population was spread out, with 24.7% under the age of 18, 5.0% from 18 to 24, 30.2% from 25 to 44, 30.4% from 45 to 64, and 9.7% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 102.0 males. For every 100 females age 18 and over, there were 97.8 males.

The median income for a household in the town was $78,571, and the median income for a family was $87,026. Males had a median income of $50,500 versus $37,447 for females. The per capita income for the town was $30,519. 3.5% of the population and 1.5% of families were below the poverty line. Out of the total people living in poverty, 4.6% were under the age of 18 and 7.2% were 65 or older.

Voter Registration and Party Enrollment as of October 25, 2005[9]
Party Active Voters Inactive Voters Total Voters Percentage
Democratic 1,493 49 1,542 27.68%
Republican 1,205 44 1,249 22.42%
Unaffiliated 2,633 139 2,772 49.77%
Minor Parties 6 1 7 0.13%
Total 5,337 233 5,570 100%

Notable people

Literary references

O thin men of Haddam,
Why do you imagine golden birds?
Do you not see how the blackbird
Walks around the feet
Of the women about you?

Notable locations and historic sites


  1. ^ The Connecticut Magazine: An Illustrated Monthly. Connecticut Magazine Company. 1903. p. 332.
  2. ^ a b U.S. Geological Survey Geographic Names Information System: Haddam, Connecticut
  3. ^ "U.S. Census Bureau Population Estimates". Archived from the original on June 29, 2011. Retrieved December 5, 2017.
  4. ^ "Census - Geography Profile: Haddam town, Middlesex County, Connecticut". Retrieved December 16, 2021.
  5. ^ "Connecticut Yankee". www.connyankee.com. Retrieved May 1, 2017.
  6. ^ "Haddam | ConnecticutHistory.org". connecticuthistory.org. Retrieved May 1, 2017.
  7. ^ Stewart, George R. (1970). American place-names; a concise and selective dictionary for the continental United States of America. New York: Oxford University Press.
  8. ^ "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
  9. ^ "Registration and Party Enrollment Statistics as of October 25, 2005" (PDF). Connecticut Secretary of State. Archived from the original (PDF) on September 23, 2006. Retrieved October 2, 2006.
  10. ^ "1817", Obituary Record of Graduates of Yale College (PDF), vol. 36, Yale University, June 27, 1877, pp. 6–7, archived (PDF) from the original on July 10, 2015, retrieved February 6, 2020
  11. ^ Poets.org
  12. ^ a b c "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  13. ^ "Heritage Trail". CT Women's Hall of Fame. Retrieved January 10, 2022.