Petersburg is a city located in Lincoln County Tennessee. With a 2020 population of 580, it is the 276th largest city in Tennessee and the 12692nd largest city in the United States . Petersburg is currently growing at a rate of 1.05% annually and its population has increased by 6.62% since the most recent census, which recorded a population of 544 in 2010. Petersburg reached it's highest population of in . Spanning over 1 miles, Petersburg has a population density of 575 people per square mile.
The average household income in Petersburg is $45,378 with a poverty rate of 28.64%. The median rental costs in recent years comes to $606 per month, and the median house value is $56,100. The median age in Petersburg is 32.3 years, 43 years for males, and 29.8 years for females.