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Haddam, Connecticut
Official seal of Haddam, Connecticut
Location in Middlesex County, Connecticut
Location in Middlesex County, Connecticut
Country United States
State Connecticut
NECTA Hartford
Region Midstate Region
Incorporated 1668
 • Total 46.4 sq mi (120.2 km2)
 • Land 44.0 sq mi (114.0 km2)
 • Water 2.3 sq mi (6.0 km2)
Elevation 322 ft (98 m)
Population (2005)
 • Total 7,635
 • Density 174/sq mi (67/km2)
Time zone Eastern (UTC-5)
 • Summer (DST) Eastern (UTC-4)
ZIP code 06424, 06438, 06441
Area code(s) 860
FIPS code 09-35230
GNIS feature ID 0213439

Haddam is a town in Middlesex County, Connecticut, United States. The population was 7,157 at the 2000 census. The town was also home to the now decommissioned Connecticut Yankee nuclear reactor.


Haddam, in Middlesex County, is located in south-central Connecticut in the lower Connecticut River Valley. It is also home to Cockaponset State Forest. Incorporated in October 1668 as Hadham, It was later renamed Haddam due to people saying Hadham too fast. Haddam is the only town in Connecticut divided by the Connecticut River. It 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. - See more at:


According to the United States Census Bureau, the town has a total area of 46.3 square miles (120 km2), of which, 44.0 square miles (114 km2) of it is land and 2.3 square miles (6.0 km2) of it (5.01%) is water. It is located in the Connecticut River Valley with a majority of the town's eastern border along the Connecticut River. However, part of the border is the Salmon River on the east side, which causes the Connecticut river to divide the community of Haddam Neck from the rest of the town. Haddam is the only town in Connecticut with residents on both sides of the river, however there is no modern bridge or ferry within the town limits.

Villages and neighborhoods

In addition to the town center, Haddam Center, the town also includes five villages, including Haddam Neck, Hidden Lake, Higganum, Shailerville, and Tylerville. The neighborhood of Ponset is also within the town's borders.


Historical population
Census Pop.
1820 2,478
1850 2,279
1860 2,307 1.2%
1870 2,071 −10.2%
1880 2,419 16.8%
1890 2,095 −13.4%
1900 2,015 −3.8%
1910 1,958 −2.8%
1920 1,736 −11.3%
1930 1,755 1.1%
1940 2,069 17.9%
1950 2,636 27.4%
1960 3,466 31.5%
1970 4,934 42.4%
1980 6,383 29.4%
1990 6,769 6.0%
2000 7,157 5.7%
2010 8,346 16.6%
Est. 2014 8,333 −0.2%
U.S. Decennial Census
See also: List of Connecticut locations by per capita income

As of the census of 2000, there are 7,157 people, 2,701 households, and 2,101 families residing in the town. The population density is 162.5 inhabitants per square mile (62.8/km²). There are 2,822 housing units at an average density of 24.7 persons/km² (64.1 persons/mi²). The racial makeup of the town is 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 are Hispanic or Latino of any race.

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

In the town, the population is 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 are 65 years of age or older. The median age is 40 years. For every 100 females there are 102.0 males. For every 100 females age 18 and over, there are 97.8 males.

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

Voter Registration and Party Enrollment as of October 25, 2005
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%

Literary references

  • The "thin men of Haddam" are apostrophized in stanza seven of "Thirteen Ways of Looking at a Blackbird" by Wallace Stevens:
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?
  • East Haddam's "Devil's Hop Yard" was referenced in H. P. Lovecraft's The Dunwich Horror.

Notable locations and historic sites

  • Connecticut Yankee Nuclear Power Plant
  • Camp Bethel - a historic religious camp at 124 Camp Bethel Road, built in 1877 and added to the National Register of Historic Places (NRHP) in 2007
  • The town center village, listed as the Haddam Center Historic District on the NRHP
  • James Hazelton House, NRHP-listed
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