The town was named after a shipping boat that traveled along the Connecticut River, which runs along Cromwell. Said ship was named after Oliver Cromwell, Lord Protector of the Commonwealth of England.
The Evangelical Covenant Church's regional East Coast Conference offices are located in Cromwell.
According to the United States Census Bureau, the town has a total area of 12.9 square miles (33 km2), of which, 12.4 square miles (32 km2) of it is land and 0.5 square miles (1.3 km2) of it (4.03%) is water.
A major north/south highway, Interstate 91, with two Cromwell exits, runs through the Town. The Central Connecticut Expressway (Route 9), opened at the end of 1989, enhances the Town's location as it connects I-95 in Old Saybrook, I-91 in Cromwell and I-84, the State's major east/west highway in New Britain.
|U.S. Decennial Census|
As of the census of 2010, there were 14,005 people, 5,212 households, and 3,262 families residing in the town. The population density was 1,038.5 people per square mile (401.1/km²). There were 5,365 housing units at an average density of 432.9 per square mile (167.2/km²). The racial makeup of the town was 93.08% White, 3.13% African American, 0.05% Native American, 1.24% Asian, 0.01% Pacific Islander, 1.03% from other races, and 1.47% from two or more races. Hispanic or Latino of any race were 3.19% of the population.
There were 5,212 households out of which 28.1% had children under the age of 18 living with them, 52.0% were married couples living together, 7.8% had a female householder with no husband present, and 37.4% were non-families. 30.3% 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 2.35 and the average family size was 2.99.
In the town, the population was spread out with 21.6% under the age of 18, 5.2% from 18 to 24, 31.8% from 25 to 44, 25.3% from 45 to 64, and 16.2% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 93.2 males. For every 100 females age 18 and over, there were 91.2 males.
The median income for a household in the town was US$60,662, and the median income for a family was $70,505. Males had a median income of $46,223 versus $36,218 for females. The per capita income for the town was $29,786. About 1.6% of families and 3.4% of the population were below the poverty line, including 3.9% of those under age 18 and 3.4% of those age 65 or over.
|Voter Registration and Party Enrollment as of October 27, 2015|
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There are 4 public schools in Cromwell: Edna C. Stevens Elementary School (K-2), Woodside Intermediate School (3-5), Cromwell Middle School (6-8), and Cromwell High School (9-12).