Gahanna is located in Ohio. Gahanna, Ohio has a population of 37,111. Gahanna is more family-centric than the surrounding county with 31% households with children. The county percentage for households with children is 27%.
The median household income in Gahanna, Ohio is $90,165. The median household income for the surrounding county is $64,630 compared to the national median of $66,222. The median age of people living in Gahanna is 41.6 years.
The average high temperature in July is 85.3 degrees, with an average low temperature in January of 20.3 degrees. The annual precipitation is 38.52.