The Town of Eden is one of the interior "Southtowns" of Erie County, lying in the south-central part of the county and south of Buffalo. .
As of the census of 2000, there were 8,076 people, 2,855 households, and 2,235 families residing in the town. The population density was 78.3/km² (202.8/sq mi). There were 2,995 housing units at an average density of 29.0 persons/km² (75.2 persons/sq mi). The racial makeup of the town was 98.33% White, .41% African American, 0.25% Native American, 0.20% Asian, 0.01% Pacific Islander, 0.31% from other races, and 0.50% from two or more races. 1.03% of the population were Hispanic or Latino of any race.
There were 2,855 households out of which 37.2% had children under the age of 18 living with them, 67.3% were married couples living together, 7.9% have a woman whose husband does not live with her, and 21.7% were non-families. 18.6% of all households were made up of individuals and 8.4% had someone living alone who was 65 years of age or older. The average household size was 2.76 and the average family size was 3.17.
In the town the population was spread out with 26.9% under the age of 18, 6.1% from 18 to 24, 28.3% from 25 to 44, 24.6% 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 98.8 males. For every 100 females age 18 and over, there were 95.6 males.
The median income for a household in the town was $54,940, and the median income for a family was $60,640. Males had a median income of $41,405 versus $28,582 for females. The per capita income for the town was $23,060. 2.4% of the population and 1.2% of families were below the poverty line. Out of the total people living in poverty, 1.1% are under the age of 18 and 4.5% are 65 or older.