Williamson is an Upstate New York town on the south shore of Lake Ontario in the northwest part of Wayne County, New York, in the United States. The population was 6,984 at the time of the 2010 census. The town is named after Charles Williamson, a land agent of the Pultney Estate. Its primary ZIP code is 14589, and telephone exchanges 589 and 904 in area code 315.
According to the United States Census Bureau, the town has a total area of 34.7 square miles (90 km), of which, 34.6 square miles (90 km) of it is land and 0.04 square miles (0.10 km) of it (0.06%) is water.
Williamson encompasses the hamlets of Williamson, Pultneyville and East Williamson. The nearest metropolitan area is the city of Rochester, New York, which lies to the west. The town of Williamson does not have an incorporated village.
In 1980, the northern terminus of New York State Route 21 (NY 21) was moved southward from the intersection with Lake Road in Pultneyville to its present location at the intersection with NY 104, in Williamson, about 0.7 miles (1.1 km) north of the town’s business district.
NY 104 is an important east-west highway in western New York, and NY 21, is a north-south highway used by many to access the New York State Thruway (Interstate 90).
As of the census of 2010, there were 6,984 people, 2,773 households, and 1,980 families residing in the town. The population density was 201.3 people per square mile (77.9/km). The racial makeup of the town was 92.4% White, 3.3% Black or African American, 0.4% Native American, 0.4% Asian, 0.0% Pacific Islander, 1.8% from other races, and 1.8% from two or more races. Hispanic or Latino of any race were 3.9% of the population.
There were 2,773 households out of which 28.1% had children under the age of 18 living with them, 56.9% were married couples living together, 10.0% had a female householder with no husband present, and 28.6% were non-families. 24.1% of all households were made up of individuals and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 2.94.
In the town, the population was spread out with 25.7% under the age of 20, 4.3% from 20 to 24, 23.1% from 25 to 44, 31.4% from 45 to 64, and 16.0% who were 65 years of age or older. The median age was 43.1 years. For every 100 females, there were 100.0 males. For every 100 females age 18 and over, there were 96.4 males.
The median income for a household in the town was $57,804, and the median income for a family was $67,184. Males had a median income of $63,401 as compared to $40,788 for females. The per capita income for the town was $30,651. About 5.7% of families and 11.1% of the population were below the poverty line, including 17.8% of those under age 18 and 3.9% of those age 65 or over.
There were 3,121 housing units at an average density of 89.9 per square mile (34.8/km²). 11.2% of housing units were vacant.
There were 2,773 occupied housing units in the town. 2,229 were owner-occupied units (80.4%), while 544 were renter-occupied (19.6%). The homeowner vacancy rate was 1.1% of total units. The rental unit vacancy rate was 9.5%.
Williamson New York neighborhoods include: East Williamson, Pultneyville Lake Road, Salmon Creek