Herndon is a city located in Virginia. With a 2020 population of 24,581, it is the 24th largest city in Virginia and the 1569th largest city in the United States. Herndon is currently growing at a rate of 0.07% annually and its population has increased by 5.53% since the most recent census, which recorded a population of 23,292 in 2010. Spanning over 4 miles, Herndon has a population density of 5,734 people per square mile.
The average household income in Herndon is $128,888 with a poverty rate of 6.66%. The median rental costs in recent years comes to $1,806 per month, and the median house value is $431,100. The median age in Herndon is 35 years, 35.8 years for males, and 34 years for females. For every 100 females there are 97.2 males.