Jewett City is a borough in New London County, Connecticut, in the town of Griswold. The borough is part of the Southeastern Connecticut Planning Region. The population was 3,328 at the 2020 census, down from 3,487 in 2010. The borough was named for Eliezer Jewett, who founded a settlement there in 1771.

According to the United States Census Bureau, the borough has a total area of 0.8 square miles (2.1 km), of which 0.7 square miles (1.8 km) is land and 0.04 square miles (0.10 km), or 4.00%, is water.

Historical population

Census	Pop.	Note	%±
1890	1,934		—
1900	2,224		15.0%
1910	3,023		35.9%
1920	3,196		5.7%
1930	4,436		38.8%
1940	3,682		−17.0%
1950	3,702		0.5%
1960	3,608		−2.5%
1970	3,372		−6.5%
1980	3,294		−2.3%
1990	3,349		1.7%
2000	3,053		−8.8%
2010	3,487		14.2%
2020	3,328		−4.6%
U.S. Decennial Census

As of the census of 2000, there were 3,053 people, 1,337 households, and 743 families residing in the borough. The population density was 4,213.9 inhabitants per square mile (1,627.0/km). There were 1,464 housing units at an average density of 2,020.7 per square mile (780.2/km). The racial makeup of the borough was 92.07% White, 2.46% African American, 0.88% Native American, 1.44% Asian, 0.07% Pacific Islander, 1.11% from other races, and 1.97% from two or more races. Hispanic or Latino of any race were 2.85% of the population.

There were 1,337 households, out of which 29.2% had children under the age of 18 living with them, 34.8% were married couples living together, 15.7% had a female householder with no husband present, and 44.4% were non-families. 34.2% of all households were made up of individuals, and 11.4% had someone living alone who was 65 years of age or older. The average household size was 2.27 and the average family size was 2.92.

The population in the borough was spread out, with 23.9% under the age of 18, 9.7% from 18 to 24, 34.8% from 25 to 44, 18.7% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 98.1 males. For every 100 females age 18 and over, there were 95.5 males.

The median income for a household in the borough was $42,318, and the median income for a family was $45,826. Males had a median income of $31,919 versus $22,463 for females. The per capita income for the borough was $19,083. 9.2% of the population and 8.8% of families were below the poverty line. 12.7% of those under the age of 18 and 12.2% of those 65 and older were living below the poverty line.

Jewett City was featured on The Daily Show with Jon Stewart after being at the center of a church bell controversy. The episode, which aired on March 6, 2007, held a segment called "Sam on Your Side" with the main focus on the ringing of the Jewett City bells.

The borough, along with the rest of Griswold Town, is in Griswold School District.

• Jewett City Vampires

• 
  Slater Library and a bank, 1908
• 
  Main Street, 1907
• 
  Jewett City Hotel, c. 1909

• Town of Griswold official web site Archived November 17, 2017, at the Wayback Machine

41°36′24″N 71°58′51″W / 41.60667°N 71.98083°W / 41.60667; -71.98083