Blackshear, GA has a population of 3,546 and is the 7,984th largest city in the United States. The population density is 804 per sq mi which is 382% higher than the Georgia average and 788% higher than the national average. The median age in Blackshear is 37 which is approximately 3% higher than the Georgia average of 36. In Blackshear, 54% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 82% of Blackshear residents were born in Georgia, 17% were born out of state, 0% were born outside of the United States and 0% were foreign born.