Lorraine is a town in Jefferson County, New York, United States. The population was 1,037 at the 2010 census, up from 930 at the 2000 census. The town is named after Lorraine, a region in France.
According to the United States Census Bureau, the town has a total area of 39.0 square miles (101.0 km), of which 0.02 square miles (0.05 km), or 0.05%, are water.
The south town line is the border of Oswego County.
South Sandy Creek is an important stream flowing through the north part of the town.
As of the census of 2000, there were 930 people, 327 households, and 248 families residing in the town. The population density was 23.8 people per square mile (9.2/km²). There were 400 housing units at an average density of 10.3 per square mile (4.0/km²). The racial makeup of the town was 99.57% White, and 0.43% from two or more races. Hispanic or Latino of any race were 0.43% of the population.
There were 327 households out of which 41.3% had children under the age of 18 living with them, 61.2% were married couples living together, 7.3% had a female householder with no husband present, and 23.9% were non-families. 17.4% of all households were made up of individuals and 6.7% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.24.
In the town, the population was spread out with 31.1% under the age of 18, 5.9% from 18 to 24, 34.3% from 25 to 44, 21.4% from 45 to 64, and 7.3% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 101.7 males. For every 100 females age 18 and over, there were 104.1 males.
The median income for a household in the town was $38,523, and the median income for a family was $40,417. Males had a median income of $32,083 versus $25,000 for females. The per capita income for the town was $14,471. About 9.8% of families and 15.5% of the population were below the poverty line, including 15.5% of those under age 18 and 17.9% of those age 65 or over.