Smithville is a city located in Mississippi. With a 2020 population of 899, it is the 166th largest city in Mississippi and the 10765th largest city in the United States. Smithville is currently declining at a rate of -0.11% annually and its population has decreased by -4.56% 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 606 people per square mile.
The average household income in Smithville is $40,328 with a poverty rate of 17.10%. The median rental costs in recent years comes to $547 per month, and the median house value is $76,500. The median age in Smithville is 40.3 years, 34.8 years for males, and 49.2 years for females. For every 100 females there are 98.5 males.