Moriah is a town in Essex County, New York, United States. The population was 4,798 at the 2010 census.
According to the United States Census Bureau, the town has a total area of 71.1 square miles (184.2 km), of which 64.5 square miles (167.0 km) is land and 6.6 square miles (17.1 km), or 9.31%, is water.
The east town line is formed by Lake Champlain and the border of Vermont.
New York State Route 9N is a north-south highway near Lake Champlain. Interstate 87, the Northway, crosses the northwest corner of Moriah.
As of the census of 2000, there were 4,879 people, 1,894 households, and 1,253 families residing in the town. The population density was 75.4 people per square mile (29.1/km²). There were 2,253 housing units at an average density of 34.8 per square mile (13.4/km²). The racial makeup of the town was 94.71% White, 2.79% African American, 0.20% Native American, 0.47% Asian, 0.06% Pacific Islander, 1.21% from other races, and 0.55% from two or more races. Hispanic or Latino of any race were 3.30% of the population.
There were 1,894 households out of which 29.0% had children under the age of 18 living with them, 50.8% were married couples living together, 10.2% had a female householder with no husband present, and 33.8% were non-families. 28.5% of all households were made up of individuals and 13.9% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.91.
In the town, the population was spread out with 22.5% under the age of 18, 9.4% from 18 to 24, 29.3% from 25 to 44, 21.9% from 45 to 64, and 16.9% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 110.9 males. For every 100 females age 18 and over, there were 111.5 males.
The median income for a household in the town was $31,903, and the median income for a family was $39,827. Males had a median income of $31,747 versus $21,592 for females. The per capita income for the town was $19,721. About 8.5% of families and 12.8% of the population were below the poverty line, including 17.4% of those under age 18 and 7.0% of those age 65 or over.