Grassy Sound is located in New Jersey. Grassy Sound, New Jersey has a population of 2,568.
The median household income in Grassy Sound, New Jersey is $29,945. The median household income for the surrounding county is $62,332 compared to the national median of $57,652. The median age of people living in Grassy Sound is 45.6 years.
The average high temperature in July is 84.5 degrees, with an average low temperature in January of 27.9 degrees. The average rainfall is approximately 44.3 inches per year, with 14.9 inches of snow per year.