Gahanna is located in Ohio. Gahanna, Ohio has a population of 33,352. Gahanna is more family-centric than the surrounding county with 34.67% of the households containing married families with children. The county average for households married with children is 35.99%.
The median household income in Gahanna, Ohio is $72,622. The median household income for the surrounding county is $50,700 compared to the national median of $53,046. The median age of people living in Gahanna is 39.9 years.
The average high temperature in July is 85 degrees, with an average low temperature in January of 20.5 degrees. The average rainfall is approximately 38.1 inches per year, with 27.6 inches of snow per year.