Lithonia is a city located in DeKalb County Georgia. With a 2020 population of 2,299, it is the 225th largest city in Georgia and the 7115th largest city in the United States . Lithonia is currently declining at a rate of -0.69% annually but its population has increased by 19.49% since the most recent census, which recorded a population of 1,924 in 2010. Lithonia reached it's highest population of in . Spanning over 1 miles, Lithonia has a population density of 2,478 people per square mile.
The average household income in Lithonia is $52,707 with a poverty rate of 38.95%. The median rental costs in recent years comes to $917 per month, and the median house value is $89,600. The median age in Lithonia is 24.3 years, 21.5 years for males, and 25.5 years for females.