Griswold is a town in New London County, Connecticut, United States. The population was 11,402 at the 2020 census. Griswold contains the borough of Jewett City and the villages of Doaneville, Kaalmanville, Rixtown, Glasgo, Hopeville, Nathanieltown, and Pachaug. History Long a fishing ground for the Mohegan people, the waterways attracted settlers who established ironworks, saw and corn mills, and other businesses. The town of Griswold was originally the northern part of the town of Preston. The North Society was established in 1716 at the request of residents who had been travelling to Preston to attend church. In the late 1700s, Eliezer Jewett opened several mills and an irrigation plant. His success led the area to be called Jewett City. The town of Griswold incorporated in 1815, naming itself after Governor Roger Griswold. In 1895, Jewett City incorporated as a borough of the town. Griswold contains Hopeville Pond State Park, former site of a woolen mill. Geography The Pachaug and Quinebaug rivers flow through the town of Griswold, which is located at the northeastern edge of New London County. According to the United States Census Bureau, the town has a total area of , of which is land and , or 6.37%, is water. Demographics As of the census of 2010, there were 11,951 people, 4,646 households, and 3,225 families living in the town. The population density was . There were 5,118 housing units at an average density of . The racial makeup of the town was 91.6% White, 1.8% African American, 0.9% Native American, 2.2% Asian, 0.03% Pacific Islander, 0.6% some other race, and 2.8% from two or more races. Hispanic or Latino people of any race were 3.3% of the population. There were 4,646 households, out of which 31.3% had children under the age of 18 living with them, 50.3% were headed by married couples living together, 12.5% had a female householder with no husband present, and 30.6% were non-families. 23.3% of all households were made up of individuals, and 7.4% were someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 3.00. In the town, the population was spread out, with 22.9% under the age of 18, 8.4% from 18 to 24, 27.2% from 25 to 44, 30.8% from 45 to 64, and 10.7% who were 65 years of age or older. The median age