Gorman is located in east-central Durham County at between the city of Durham to the southwest and Falls Lake on the Neuse River to the northeast. Interstate 85 forms the northwestern border of the community, with access from exits 180, 182, and 183. The main road through the community is East Geer Street, running roughly parallel to I-85.(36.039342, -78.819783),
According to the United States Census Bureau, the Gorman CDP has a total area of 2.93 square miles (7.60 km2), of which 2.88 square miles (7.45 km2) is land and 0.054 square miles (0.14 km2), or 1.89%, is water.
As of the census of 2000, there were 1002 people, 406 households, and 291 families residing in the CDP. The population density was 325.1 people per square mile (125.6/km²). There were 428 housing units at an average density of 138.9 per square mile (53.7/km²). The racial makeup of the CDP was 82.04% White, 15.97% African American, 0.10% Native American, 0.10% Asian, 1.00% from other races, and 0.80% from two or more races. Hispanic or Latino of any race were 4.29% of the population.
There were 406 households out of which 27.6% had children under the age of 18 living with them, 55.7% were married couples living together, 13.5% had a female householder with no husband present, and 28.3% were non-families. 24.4% of all households were made up of individuals and 8.1% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.91.
In the CDP, the population was spread out with 22.1% under the age of 18, 6.8% from 18 to 24, 30.2% from 25 to 44, 26.7% from 45 to 64, and 14.2% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 93.8 males. For every 100 females age 18 and over, there were 88.2 males.
The median income for a household in the CDP was $42 236, and the median income for a family was $43,977. Males had a median income of $36,143 versus $30,789 for females. The per capita income for the CDP was $19,083. About 9.3% of families and 6.7% of the population were below the poverty line, including 6.9% of those under age 18 and 5.9% of those age 65 or over.