Cainhoy is located in South Carolina. Cainhoy, South Carolina has a population of 73,964.
The median household income in Cainhoy, South Carolina is $76,556. The median household income for the surrounding county is $70,807 compared to the national median of $69,021. The median age of people living in Cainhoy is 35.5 years.
The average high temperature in July is 89.9 degrees, with an average low temperature in January of 39.3 degrees. The average rainfall is approximately 48.3 inches per year, with 0.4 inches of snow per year.