Hollis is a town in York County, Maine, United States. The population was 4,281 at the 2010 census. Hollis is a rural bedroom community of Portland and is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area.
According to the United States Census Bureau, the town has a total area of 32.99 square miles (85.44 km), of which, 32.01 square miles (82.91 km) of it is land and 0.98 square miles (2.54 km) is water. Hollis is drained by Cook’s Brook and the Saco River.
Hollis borders the towns of Limington and Standish to the north, Buxton to the east, Dayton to the south, Lyman to the southwest and Waterboro to its west.
As of the census of 2010, there were 4,281 people, 1,668 households, and 1,216 families residing in the town. The population density was 133.7 inhabitants per square mile (51.6/km). There were 1,801 housing units at an average density of 56.3 per square mile (21.7/km). The racial makeup of the town was 97.9% White, 0.2% African American, 0.4% Native American, 0.4% Asian, 0.1% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 0.4% of the population.
There were 1,668 households of which 33.5% had children under the age of 18 living with them, 58.2% were married couples living together, 8.9% had a female householder with no husband present, 5.8% had a male householder with no wife present, and 27.1% were non-families. 18.5% of all households were made up of individuals and 5.6% had someone living alone who was 65 years of age or older. The average household size was 2.56 and the average family size was 2.89.
The median age in the town was 40.9 years. 22% of residents were under the age of 18; 7.1% were between the ages of 18 and 24; 26.9% were from 25 to 44; 33.5% were from 45 to 64; and 10.5% were 65 years of age or older. The gender makeup of the town was 50.4% male and 49.6% female.
As of the census of 2000, there were 4,114 people, 1,507 households, and 1,139 families residing in the town. The population density was 128.5 people per square mile (49.6/km²). There were 1,592 housing units at an average density of 49.7 per square mile (19.2/km²). The racial makeup of the town was 98.81% White, 0.15% African American, 0.12% Native American, 0.15% Asian, 0.10% Pacific Islander, 0.07% from other races, and 0.61% from two or more races. Hispanic or Latino of any race were 0.53% of the population.
There were 1,507 households out of which 38.1% had children under the age of 18 living with them, 62.7% were married couples living together, 8.3% had a female householder with no husband present, and 24.4% were non-families. 16.3% of all households were made up of individuals and 5.2% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.06.
In the town, the age distribution of the population shows 26.8% under the age of 18, 7.8% from 18 to 24, 32.7% from 25 to 44, 25.1% from 45 to 64, and 7.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 98.5 males. For every 100 females age 18 and over, there were 96.1 males.
The median income for a household in the town was $48,846, and the median income for a family was $53,621. Males had a median income of $35,064 versus $25,510 for females. The per capita income for the town was $19,065. About 4.6% of families and 6.6% of the population were below the poverty line, including 9.3% of those under age 18 and 10.6% of those age 65 or over.