|City of Groton, Connecticut|
Skyline of Groton
Location of Groton within New London County, Connecticut
GROTON (CITY) CONNECTICUT Latitude and Longitude:
|Metropolitan area||New London|
|• Mayor||Keith Hedrick|
|• Deputy Mayor||Lawrence Gerrish|
|• City Councilors||Rashaad Carter, Jill Rusk, Stephen Sheffield, Gweneviere Depot, Jamal Beckford|
|• Total||6.8 sq mi (17.5 km2)|
|• Land||3.1 sq mi (8.0 km2)|
|• Water||3.7 sq mi (9.5 km2)|
|• Density||1,400/sq mi (540/km2)|
|Time zone||UTC-5 ( Eastern)|
|• Summer ( DST)||UTC-4 ( Eastern)|
The City of Groton is a dependent political subdivision of the Town of Groton in New London County, Connecticut, United States. The population was 9,395 at the 2010 census.   The city is located in the western edge of the town, west of Plain Creek and south of Grove Avenue.
The city was first settled in 1655 as Groton Bank; the area occupied by the present city of Groton developed into the principal village of the town of Groton. The village of Groton incorporated as a borough in 1903. In 1964, the residents of the borough of Groton reincorporated as the city of Groton. It is the only remaining city in the state of Connecticut that is not governmentally consolidated with its parent town. 
According to the United States Census Bureau, the city has a total area of 6.8 square miles (17.5 km2), of which 3.1 square miles (8.0 km2) is land and 3.7 square miles (9.5 km2), or 54.39%, is water. 
As of the census  of 2000, there were 10,010 people, 4,230 households, and 2,444 families residing in the city. The population density was 3,138.0 people per square mile (1,211.6/km²). There were 4,569 housing units at an average density of 1,432.3 per square mile (553.0/km²). The racial makeup of the city was 77.72% White, 10.18% Black or African American, 0.93% American India, 3.55% Asian, 0.05% Pacific Islander, 2.84% from other races, and 4.74% from two or more races. Hispanic or Latino of any race were 7.72% of the population.
There were 4,230 households, out of which 30.2% had children under the age of 18 living with them, 35.2% were married couples living together, 17.8% had a female householder with no husband present, and 42.2% were non-families. 33.6% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older. The average household size was 2.19, and the average family size was 2.77.
In the city, the population was spread out, with 22.5% under the age of 18, 15.7% from 18 to 24, 32.9% from 25 to 44, 18.3% from 45 to 64, and 10.5% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 111.0 males. For every 100 females age 18 and over, there were 113.6 males.
The median income for a household in the city was $40,515, and the median income for a family was $43,859. Males had a median income of $32,476 versus $28,510 for females. The per capita income for the city was $22,239. About 10.3% of families and 9.9% of the population were below the poverty line, including 16.9% of those under age 18 and 5.8% of those age 65 or over.
- Husband Edward Kimmel (February 1882 – May 1968) was a four-star admiral in the United States Navy. He served as Commander in Chief, U.S. Pacific Fleet during the Japanese attack on Pearl Harbor.
- Morton F. Plant, industrialist who built Branford House on Avery Point, now part of the University of Connecticut, and a founder and early benefactor of Connecticut College
- "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data (DP-1): Groton city, Connecticut". U.S. Census Bureau, American Factfinder. Archived from the original on September 11, 2013. Retrieved October 29, 2012.
- The population was revised from 10,389 following a Count Question Resolution procedure.
- Connecticut Office of Legislative Research, Lake Associations and Special Districts, 95-R-0800, August 8, 1995.
- "Geographic Identifiers: 2010 Demographic Profile Data (G001): Groton city, Connecticut". U.S. Census Bureau, American Factfinder. Archived from the original on September 11, 2013. Retrieved October 29, 2012.
- "American FactFinder". United States Census Bureau. Archived from the original on September 11, 2013. Retrieved 2008-01-31.