Glennville is a city located in Tattnall County Georgia. With a 2020 population of 4,862, it is the 141st largest city in Georgia and the 4840th largest city in the United States . Glennville is currently declining at a rate of -1.60% annually but its population has increased by 36.23% since the most recent census, which recorded a population of 3,569 in 2010. Glennville reached it's highest population of in . Spanning over 7 miles, Glennville has a population density of 688 people per square mile.
The average household income in Glennville is $68,993 with a poverty rate of 21.59%. The median rental costs in recent years comes to $597 per month, and the median house value is $122,000. The median age in Glennville is 35.3 years, 32.5 years for males, and 40.3 years for females.