Smithville is a city located in Bastrop County Texas. With a 2020 population of 4,565, it is the 386th largest city in Texas and the 5020th largest city in the United States . Smithville is currently growing at a rate of 0.55% annually and its population has increased by 19.60% since the most recent census, which recorded a population of 3,817 in 2010. Smithville reached it's highest population of 4,565 in 2021. Spanning over 4 miles, Smithville has a population density of 1,147 people per square mile.
The average household income in Smithville is $77,792 with a poverty rate of 8.98%. The median rental costs in recent years comes to $979 per month, and the median house value is $158,000. The median age in Smithville is 46.8 years, 40.7 years for males, and 51.4 years for females.