Cornwells Heights and Eddington are adjacent unincorporated communities within Bensalem Township that are grouped together in the CDP for statistical purposes. The CDP does not have any legal status as an incorporated municipality. Cornwells Heights is located a bit southwest of Eddington. Both communities use the Bensalem ZIP code, 19020.
The CDP is bounded on the south by Interstate 95, on the east by Street Road, on the north and west by Hulmeville Road, and on the west by Woodhaven Road. The Philadelphia city boundary is less than a mile to the west and north. The Delaware River is located 3.5 miles to the south-southeast. Like neighboring Andalusia, the area consists of middle-class single-family homes along a series of grid-style streets. The main roads are generally accepted as Street Road, Hulmeville Road, and Brown Avenue.
There were 1,193 households out of which 29.8% had children under the age of 18 living with them, 59.4% were married couples living together, 10.2% had a female householder with no husband present, and 25.5% were non-families. 20.5% of all households were made up of individuals and 9.5% had someone living alone who was 65 years of age or older. The average household size was 2.79 and the average family size was 3.19.
In the CDP the population was spread out with 22.9% under the age of 18, 7.4% from 18 to 24, 27.5% from 25 to 44, 25.2% from 45 to 64, and 17.0% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 96.4 males. For every 100 females age 18 and over, there were 94.2 males.
The median income for a household in the CDP was $49,728, and the median income for a family was $55,905. Males had a median income of $41,614 versus $32,107 for females. The per capita income for the CDP was $24,171. About 7.5% of families and 8.3% of the population were below the poverty line, including 11.3% of those under age 18 and 8.5% of those age 65 or over.