At the
2000 census there were 8,732 people in 3,388 households, including 2,419 families, in the town. The population density was . There were 3,528 housing units at an average density of . The
racial makeup of the town was 95.12% White, 2.44% Black or African American, 0.16% Native American, 0.52% Asian, 0.03% Pacific Islander, 0.46% from other races, and 1.27% from two or more races. Hispanic or Latino of any race were 1.96%. Of the 3,388 households 33.6% had children under the age of 18 living with them, 58.5% were married couples living together, 9.4% had a female householder with no husband present, and 28.6% were non-families. 24.1% of households were one person and 10.4% were one person aged 65 or older. The average household size was 2.52 and the average family size was 3.01. The age distribution was 25.5% under the age of 18, 4.5% from 18 to 24, 30.7% from 25 to 44, 24.7% from 45 to 64, and 14.6% 65 or older. The median age was 39 years. For every 100 females, there were 95.0 males. For every 100 females age 18 and over, there were 91.4 males. The median household income was $63,285 and the median family income was $73,036. Males had a median income of $48,849 versus $35,104 for females. The per capita income for the town was $28,229. About 3.0% of families and 5.1% of the population were below the
poverty line, including 4.6% of those under age 18 and 8.9% of those age 65 or over.
Town center At the
2000 census there were 5,534 people in 2,225 households, including 1,495 families, in the
Portland census-designated place, comprising the town center and the adjacent neighborhood of Gildersleeve. The population density was . There were 2,286 housing units at an average density of . The
racial makeup of the CDP was 93.89% White, 3.22% Black or African American, 0.22% Native American, 0.54% Asian, 0.05% Pacific Islander, 0.56% from other races, and 1.52% from two or more races. Hispanic or Latino of any race were 2.29%. Of the 2,225 households 29.8% had children under the age of 18 living with them, 51.4% were married couples living together, 11.4% had a female householder with no husband present, and 32.8% were non-families. 28.3% of households were one person and 13.0% were one person aged 65 or older. The average household size was 2.39 and the average family size was 2.94. The age distribution was 23.7% under the age of 18, 5.1% from 18 to 24, 29.5% from 25 to 44, 23.9% from 45 to 64, and 17.9% 65 or older. The median age was 40 years. For every 100 females, there were 92.7 males. For every 100 females age 18 and over, there were 87.6 males. The median household income was $55,949 and the median family income was $66,686. Males had a median income of $46,163 versus $30,402 for females. The per capita income for the CDP was $26,240. About 4.1% of families and 6.7% of the population were below the
poverty line, including 5.8% of those under age 18 and 11.8% of those age 65 or over. File:Portland from Main St-Silver St intersection, 2022-4-15.jpg|Portland town center as seen from the intersection of Main Street and Silver Street File:Portland sign, 2022-4-15.jpg|A sign welcoming people to Portland File:Portland library, 2022-4-15.jpg|The entrance to Portland Library File:Portland Post Office, 2022-4-15.jpg|Portland Post Office File:Portland Fire Department, 2022-4-15.jpg|Portland Fire Department File:Portland town hall, 2022-4-15.jpg|Portland town hall, which also houses the town's police department ==Notable locations==