As of the census of 2000, there were 2,897 people, 1,044 households, and 790 families residing in the town. The population density was . There were 1,144 housing units at an average density of . The racial makeup of the town was 94.20% White, 1.52% African American, 0.66% Native American, 1.21% Asian, 0.03% Pacific Islander, 0.59% from other races, and 1.79% from two or more races. Hispanic or Latino of any race were 1.73% of the population.
There were 1,044 households, out of which 38.2% had children under the age of 18 living with them, 60.5% were married couples living together, 8.7% had a female householder with no husband present, and 24.3% were non-families. 19.0% of all households were made up of individuals, and 5.7% had someone living alone who was 65 years of age or older. The average household size was 2.75 and the average family size was 3.12.
In the town, the population was spread out, with 29.0% under the age of 18, 8.2% from 18 to 24, 29.9% from 25 to 44, 24.9% from 45 to 64, and 8.1% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 103.7 males. For every 100 females age 18 and over, there were 100.5 males.
The median income for a household in the town was $37,500, and the median income for a family was $45,500. Males had a median income of $33,050 versus $21,832 for females. The per capita income for the town was $16,314. About 9.0% of families and 11.9% of the population were below the poverty line, including 17.1% of those under age 18 and 1.7% of those age 65 or over.
Communities and locations in Pamelia
- Glen Park – A village primarily in the town of Brownville; a small portion occupies the southwestern corner of Pamelia.
- Knowlesville – A hamlet by Interstate 81 north of Pamelia Center.
- Pamelia Center (formerly "Williamsville") – A hamlet and census-designated place near the middle of the town on NY-37.
- Pamelia Four Corners – A hamlet by the eastern town line on NY-37 and County Road 16.
- Perch Lake – A lake partly in the northern part of Pamelia.
- Perch River – A stream partly in the northern part of the town.
- Scoville Corners – A location near the western town line at NY-12 and NY-342.
Notable person
- Frank Leach, Wisconsin State Assemblyman and businessman, was born in Pamelia.