Mount Vernon is a city located in Lawrence County Missouri. It is also the county seat of Lawrence County. With a 2020 population of 4,526, it is the 148th largest city in Missouri and the 5050th largest city in the United States . Mount Vernon is currently growing at a rate of 0.20% annually but its population has decreased by -1.07% since the most recent census, which recorded a population of 4,575 in 2010. Spanning over 4 miles, Mount Vernon has a population density of 1,139 people per square mile.
The average household income in Mount Vernon is $54,558 with a poverty rate of 18.14%. The median rental costs in recent years comes to $584 per month, and the median house value is $106,400. The median age in Mount Vernon is 45.2 years, 41.1 years for males, and 48.9 years for females.