Mount Vernon is a city located in Knox County Ohio. It is also the county seat of Knox County. With a 2020 population of 16,877, it is the 107th largest city in Ohio and the 2135th largest city in the United States . Mount Vernon is currently growing at a rate of 0.32% annually but its population has decreased by -0.67% since the most recent census, which recorded a population of 16,990 in 2010. Mount Vernon reached it's highest population of 17,064 in 2011. Spanning over 10 miles, Mount Vernon has a population density of 1,763 people per square mile.
The average household income in Mount Vernon is $54,128 with a poverty rate of 18.97%. The median rental costs in recent years comes to $706 per month, and the median house value is $118,000. The median age in Mount Vernon is 38.8 years, 36.5 years for males, and 40.2 years for females.