Gaithersburg is a city located in Montgomery County, Maryland. With a 2020 population of 69,079, it is the 4th largest city in Maryland (after Baltimore, Frederick, and Rockville) and the 539th largest city in the United States. Gaithersburg is currently growing at a rate of 0.58% annually and its population has increased by 15.26% since the most recent census, which recorded a population of 59,933 in 2010. Spanning over 10 miles, Gaithersburg has a population density of 6,695 people per square mile.
The average household income in Gaithersburg is $112,161 with a poverty rate of 9.12%. The median rental costs in recent years comes to $1,697 per month, and the median house value is $389,700. The median age in Gaithersburg is 35.8 years, 34.2 years for males, and 37.5 years for females. For every 100 females there are 97.2 males.