Gaithersburg is located in Maryland. Gaithersburg, Maryland 20878 has a population of 70,566. Gaithersburg 20878 is more family-centric than the surrounding county with 32.6% households with children. The county percentage for households with children is 32%.
The median household income in Gaithersburg, Maryland 20878 is $93,688. The median household income for the surrounding county is $113,505 compared to the national median of $66,222. The median age of people living in Gaithersburg 20878 is 39.1 years.
The average high temperature in July is 85.4 degrees, with an average low temperature in January of 23.8 degrees. The annual precipitation is 43.08.