Durham County is the core of the four-county Durham-Chapel Hill Metropolitan Area. which has a population of 504,357 as of Census 2010. The US Office of Management and Budget also includes Durham as a part of the Raleigh-Durham-CaryCombined Statistical Area, which has a population of 1,749,525 as of Census 2010. Effective June 6, 2003 the Office of Management and Budget redefined the Federal Statistical Areas and dismantled what had been for decades the Raleigh-Durham-Chapel Hill, MSA and split them into two separate MSAs even though the region still functions as a single metropolitan area.
Durham County is a member of the regional Triangle J Council of Governments. Durham County is governed by a five-member board of county commissioners, currently consisting of Chairman Fred Foster Jr., Vice Chairwoman Brenda Howerton, Wendy Jacobs, Michael Page and Ellen Reckhow. Each elected member serves a four-year term.
According to the U.S. Census Bureau, the county has a total area of 298 square miles (771.8 km2), of which 290 square miles (751.1 km2) is land and 7 square miles (18.1 km2) (2.51%) is water.
There were 89,015 households out of which 29.10% had children under the age of 18 living with them, 42.00% were married couples living together, 14.80% had a female householder with no husband present, and 39.30% were non-families. 30.00% of all households were made up of individuals and 7.00% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.99.
In the county the population was spread out with 22.90% under the age of 18, 12.80% from 18 to 24, 34.80% from 25 to 44, 19.80% from 45 to 64, and 9.70% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 93.00 males. For every 100 females age 18 and over, there were 89.70 males.
The median income for a household in the county was $43,337, and the median income for a family was $53,223. Males had a median income of $35,939 versus $30,683 for females. The per capita income for the county was $23,156. About 9.80% of families and 13.40% of the population were below the poverty line, including 17.20% of those under age 18 and 12.30% of those age 65 or over.
Map of Durham County, North Carolina, With Municipal and Township Labels