Grantville is located in New York. Grantville, New York has a population of 2,290.
The median household income in Grantville, New York is $46,758. The median household income for the surrounding county is $48,330 compared to the national median of $57,652. The median age of people living in Grantville is 34.9 years.
The average high temperature in July is 80 degrees, with an average low temperature in January of 4.8 degrees. The average rainfall is approximately 39.2 inches per year, with 59.8 inches of snow per year.