Glynn County is located in the southeastern part of Georgia.
As of the 2010 census, the population was 79,626. The county seat is Brunswick. Glynn County is part of the Brunswick, Georgia Metropolitan Statistical Area.
Glynn County, one of the original eight counties in the state created on February 5, 1777, was named after John Glynn, a member of the British House of Commons who defended the cause of the American Colonies before the American Revolution. The Battle of Bloody Marsh was fought in Glynn County. James Oglethorpe built Fort Frederica which was used a base in the American Revolutionary War. Glynn Academy is the second oldest school in Georgia.
The former Naval Air Station Glynco, named for the county, was a major base for blimps and anti-submarine warfare during World War II. The Federal Law Enforcement Training Center (FLETC) now uses a substantial part of the former NAS as its main campus.
Glynn County includes the most prominent of the Sea Islands of Georgia, including Jekyll Island, St. Simons Island, and Sea Island.
The Georgia poet Sidney Lanier immortalized the seacoast there in his poem, “The Marshes of Glynn”, which begins:
Glooms of the live-oaks, beautiful-braided and woven
With intricate shades of the vines that myriad-cloven
Clamber the forks of the multiform boughs,–
Virginal shy lights,
Wrought of the leaves to allure to the whisper of vows,
When lovers pace timidly down through the green colonnades
Of the dim sweet woods, of the dear dark woods,
Of the heavenly woods and glades,
That run to the radiant marginal sand-beach within
The wide sea-marshes of Glynn;–
According to the U.S. Census Bureau, the county has a total area of 585 square miles (1,520 km2), of which 420 square miles (1,100 km2) is land and 165 square miles (430 km2) (28.3%) is water.
The majority of Glynn County is located in the Cumberland-St. Simons sub-basin of the St. Marys-Satilla River basin. Most of the county’s northern and northwestern border area is located in the Altamaha River sub-basin of the basin by the same name.