Smithville is a city located in Monroe County Mississippi. With a 2020 population of 717, it is the 182nd largest city in Mississippi and the 11776th largest city in the United States . Smithville is currently declining at a rate of -1.38% annually and its population has decreased by -23.89% since the most recent census, which recorded a population of 942 in 2010. Smithville reached it's highest population of 940 in 2010. Spanning over 2 miles, Smithville has a population density of 483 people per square mile.
The average household income in Smithville is $41,235 with a poverty rate of 17.46%. The median rental costs in recent years comes to $531 per month, and the median house value is $75,000. The median age in Smithville is 46.3 years, 40.5 years for males, and 49.8 years for females.