The Coastal Plain is the largest geographic region in Georgia, covering roughly 60% of the state's land area.
The Coastal Plain stretches across about 58,725 square miles—from the Fall Line down to the Atlantic Ocean and Florida border. Its coordinates run from 30.5°N to 32°N latitude and 81.5°W to 85°W longitude, keeping it firmly planted in the Southeastern U.S. coastal zone. As of 2026, around 2.8 million people call this region home, with most living in cities like Savannah, Valdosta, and Brunswick, according to the U.S. Census Bureau.
What’s the geographic context of the Coastal Plain?
The Coastal Plain is the southern half of Georgia and marks the northern edge of the Atlantic Coastal Plain physiographic province.
It starts at the Fall Line—a sharp drop in elevation that separates it from the Piedmont—and expands toward the coast. There, you’ll find barrier islands, salt marshes, and estuaries shaping the shoreline. Ecologically, this region is huge—it’s home to the Okefenokee Swamp, one of North America’s largest freshwater wetlands, and serves as a vital habitat for migratory birds and endangered species. The flat terrain and warm climate? They’ve turned this area into an agricultural and logistics powerhouse, with major ports in Savannah and Brunswick driving trade across the region and beyond.
What are the key details about the Coastal Plain?
Here’s a quick breakdown of the Coastal Plain’s most important features.
| Feature | Measure | Details |
|---|---|---|
| Total Area | 58,725 sq mi | 60% of Georgia’s land |
| Population | 2.8 million | As of 2026 estimates |
| Elevation Range | 0–300 ft | Near sea level near coast; rises slightly inland |
| Major Subregions | Inner & Outer Coastal Plain | Inner: fertile farmland; Outer: barrier islands and wetlands |
| Agricultural Output | $3.2B annually | Peanuts, cotton, pecans, and timber (as of 2024 data) |
