South Portland is a city in Cumberland County, Maine, United States, and is the fourth-largest city in the state, incorporated in 1898. As of the 2010 census, the city population was 25,002. Known for its working waterfront, South Portland is situated on Portland Harbor and overlooks the skyline of Portland and the islands of Casco Bay. Due to South Portland’s close proximity to air, marine, rail, and highway transportation options, the city has become a center for retail and industry in the region.
South Portland is bordered by Portland to the north, Cape Elizabeth and Scarborough to the south, and Westbrook to the west. The city is located at 43°37′54″N 70°16′22″W / 43.63167°N 70.27278°W / 43.63167; -70.27278. According to the United States Census Bureau, the city has a total area of 14.02 square miles (36.31 km), of which 11.99 square miles (31.05 km) is land and 2.03 square miles (5.26 km) is water.
The city-owned South Portland Bus Service provides public transportation throughout the city.
As of the census of 2010, there were 25,002 people, 10,877 households, and 6,197 families residing in the city. The population density was 2,085.2 inhabitants per square mile (805.1/km). There were 11,484 housing units at an average density of 957.8 per square mile (369.8/km). The racial makeup of the city was 91.1% White, 2.1% African American, 0.3% Native American, 3.8% Asian, 0.8% from other races, and 2.0% from two or more races. Hispanic or Latino of any race were 2.2% of the population.
There were 10,877 households of which 27.6% had children under the age of 18 living with them, 40.6% were married couples living together, 12.0% had a female householder with no husband present, 4.4% had a male householder with no wife present, and 43.0% were non-families. 31.9% of all households were made up of individuals and 11.1% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.84.
The median age in the city was 39.4 years. 20.4% of residents were under the age of 18; 9.7% were between the ages of 18 and 24; 28.4% were from 25 to 44; 27.8% were from 45 to 64; and 13.6% were 65 years of age or older. The gender makeup of the city was 47.7% male and 52.3% female.
As of the census of 2000, there were 23,324 people, 10,047 households, and 6,038 families residing in the city. The population density was 1,944.7 people per square mile (751.1/km²). There were 10,349 housing units at an average density of 862.9 per square mile (333.3/km²). The racial makeup of the city was 95.80% White, 0.63% African American, 0.33% Native American, 1.59% Asian, 0.03% Pacific Islander, 0.31% from other races, and 1.31% from two or more races. Hispanic or Latino of any race were 1.13% of the population.
There were 10,047 households out of which 27.6% had children under the age of 18 living with them, 45.1% were married couples living together, 11.4% had a female householder with no husband present, and 39.9% were non-families. 30.7% of all households were made up of individuals and 12.4% 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 2.85.
In the city, the population was spread out with 22.3% under the age of 18, 7.7% from 18 to 24, 32.2% from 25 to 44, 23.1% from 45 to 64, and 14.6% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 89.5 males. For every 100 females age 18 and over, there were 84.3 males.
The median income for a household in the city was $42,770, and the median income for a family was $52,833. Males had a median income of $32,256 versus $28,630 for females. The per capita income for the city was $22,781. About 4.9% of families and 6.7% of the population were below the poverty line, including 7.5% of those under age 18 and 7.2% of those age 65 or over.