Hanahan is a city in Berkeley County, South Carolina. The population was 17,997 at the 2010 census. Portions of the Naval Weapons Station Charleston, including the Naval Consolidated Brig Charleston, are located in Hanahan. As defined by the U.S. Office of Management and Budget, and used by the U.S. Census Bureau for statistical purposes only, Hanahan is included within the Charleston-North Charleston-Summerville metropolitan area and the Charleston-North Charleston Urbanized Area.
Hanahan is located on the very south end of Berkeley County, and its city limits on the west and south sides are contiguous with the county line between Berkeley and Charleston Counties. It was incorporated as a city in 1972.
Hanahan is bordered on the west and south by the city of North Charleston, South Carolina. To the east is the old Naval Weapons Station, which was formerly a submarine base, and is still federal property. A very small portion of this federal base is actually in Hanahan’s city limits. Among other uses of the former submarine base, the Naval Consolidated Brig is there, as is the Navy’s Nuclear Power School. To the north is an unincorporated portion of Berkeley County.
CSX Transportation has a main north-south track that runs along Hanahan’s west city limit. Hanahan is primarily a residential city. It does have quite a number of major warehouses in the southeast portion of the city, most of whose business is tied directly to the Port of Charleston. The commercial district is mainly in the southern-most section of the city, and is not large. There has been some commercial development in the area known as Tanner Plantation, a primarily residential portion of the city which has developed over about the last 10 years. As far as professional services, the city has one medical doctor, four dentists, one veterinarian, one attorney, and one professional financial advisor. There is a fairly large firm of professional engineers in the city.
The form of government is council-administrator. The council is the governing body of the city, with the city administrator being hired by, and serving at the pleasure of, the city council. The council and mayor are elected by the voters. The mayor is a first among equals on the council, presiding over council meetings and representing the city at official functions. The council hires and fires department heads. The mayor and council members, though paid a small salary, are not full-time, but are citizens with other jobs.
According to the United States Census Bureau, the city has a total area of 10.7 square miles (28 km2), of which, 10.1 square miles (26 km2) of it is land and 0.6 square miles (1.6 km2) of it (5.80%) is water.
As of the census of 2010, there were 17,994 people (19,157 in 2012 estimate), 7,062 households, and 3,339 families residing in the city. The population density was 1,284.7 people per square mile (496.0/km²). There were 7,817 housing units at an average density of 565.8 per square mile (218.5/km²). The racial makeup of the city was 74.7% White, 13.9% African American, 0.6% Native American, 3.4% Asian, 0.1% Pacific Islander, 2.9% from two or more races. Hispanic or Latino of any race were 6.17% of the population.
There were 5,243 households out of which 27.9% have kids under the age of 18 living with them, 46.1% were married couples living together, 13.1% had a female householder with no husband present, and 36.3% were non-families. 27.7% of all households were made up of individuals and 7.4% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.84.
In the city the population was spread out with 21.0% under the age of 18, 13.8% from 18 to 24, 31.5% from 25 to 44, 22.2% from 45 to 64, and 11.5% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 112.4 males. For every 100 females age 18 and over, there were 113.0 males.
The median income for a household in the city was $39,327, and the median income for a family was $45,246. Males had a median income of $30,354 versus $22,374 for females. The per capita income for the city was $22,629. About 6.0% of families and 17.4% of the population were below the poverty line, including 10.9% of those under age 18 and 6.2% of those age 65 or over.