The majority of Laurens County is located in the Lower Oconee River sub-basin of the Altamaha River basin. The southwestern corner of the county, defined by a line that runs west from Chester through Rentz to U.S. Route 441, and then southeast toward Glenwood, is located in the Little Ocmulgee River sub-basin of the same Altamaha River basin. A small and narrow sliver of the eastern edge of the county, from east of Lovett to northeast of Rockledge, is located in the Ohoopee River sub-basin of the larger Altamaha River basin. The county has several swamps along with Oconee river including Cow Hell Swamp.
The majority of Laurens County is located in the Lower Oconee River sub-basin of the Altamaha River basin The southwestern corner of the county defined by a line that runs west from Chester through Rentz to US Route 441 and then southeast toward Glenwood is located in the Little Ocmulgee River sub-basin of the same Altamaha River basin A small and narrow sliver of the eastern edge of the county from east of Lovett to northeast of Rockledge is located in the Ohoopee River sub-basin of the larger Altamaha River basin The county has several swamps along with Oconee river including Cow Hell Swamp