Lake Hartwell: What Locals and Buyers Need to Know

By Jeff Turpin – Realtor® | Real Local / Real Brokerage LLC

Lake Hartwell is one of the most well-loved lakes in the Southeast — and for good reason. It offers miles of shoreline, deep water, great fishing, and a lifestyle folks come from all over to enjoy. But with that popularity comes a lot of questions from curious buyers, weekenders, and long-time residents alike.

What Are Some Fun Facts About Lake Hartwell?

• Lake Hartwell covers over 56,000 acres and spans both South Carolina and Georgia.
• The shoreline stretches more than 960 miles — longer than the California coast!
• It’s one of the Southeast’s largest and most popular lakes for boating and recreation.
• The lake is named after Nancy Hart, a Revolutionary War heroine.
• Lake Hartwell hosts major bass fishing tournaments and is home to trophy-sized fish.

Is Lake Hartwell Safe to Swim In?

Yes — in most areas, it is safe to swim in Lake Hartwell. The Army Corps of Engineers monitors water quality regularly. However, swimmers should avoid swimming in posted restricted zones or immediately after heavy rains due to runoff.

Does Lake Hartwell Have a Town Under It?

Yes — the most notable is Old Andersonville, a small farming town that was flooded when the lake was created in the late 1950s. Remnants of homes, roads, and even bridges still lie beneath the surface in some areas.

How Deep Is the Deepest Part of Lake Hartwell?

Lake Hartwell reaches depths of up to 185 feet near the dam. While much of the lake is shallower, especially in coves, this depth supports a healthy fish population and cool, clear water.

Can You Eat Fish from Lake Hartwell?

Yes — but with limits. The South Carolina DHEC issues fish consumption advisories for certain species like catfish and bass, especially for women and children. Occasional eating is generally considered safe.

What Is the Biggest Fish in Lake Hartwell?

The lake is known for striped bass, which can reach over 40 pounds! There are also large catfish, largemouth bass, crappie, and hybrid bass.

Are There Jellyfish in Lake Hartwell?

Surprisingly, yes — freshwater jellyfish have occasionally been spotted in Lake Hartwell. They're harmless to humans and more of a novelty than a threat.

What Lives in Lake Hartwell?

• Bass, catfish, crappie, bluegill, striper, and carp
• Turtles
• Freshwater mussels
• Occasional jellyfish
• Birds and waterfowl
• Snakes (mostly non-venomous)

Are There Snakes in Lake Hartwell?

Yes — but mostly non-venomous water snakes like the northern water snake. Cottonmouths are rare in the Hartwell region.

Can You Stay Overnight on Lake Hartwell?

Yes — there are campgrounds, vacation rentals, cabins, and even houseboats. Popular parks like Sadlers Creek State Park and Hartwell Lake Campground offer overnight stays.

Is It OK to Swim in Lake Hartwell?

Yes, it’s generally safe, especially in designated swimming areas. Avoid swimming near boat ramps, after storms, or in industrial discharge areas.

What Does Red Zone Mean on Lake Hartwell?

A Red Zone typically refers to areas with restrictions on building, boat docks, or environmental concerns, as determined by the U.S. Army Corps of Engineers.

Is Lake Hartwell Natural or Man-Made?

Lake Hartwell is man-made, created in the late 1950s by damming the Savannah River for flood control, hydropower, and recreation.

What Town Is Underwater in Lake Hartwell?

The most talked-about is Old Andersonville, now submerged beneath the lake.

Is Lake Hartwell Polluted?

Generally no — but specific areas near historic industrial sites have sediment concerns. Water quality for swimming and boating is considered safe across most of the lake.

Can You Jet Ski on Lake Hartwell?

Absolutely! Jet skiing, wakeboarding, tubing, and boating are all welcome. Follow local rules and wear a life vest.

Can You Kayak on Lake Hartwell?

Yes — kayaking and paddleboarding are popular on Lake Hartwell, especially in quiet coves and inlets.

Are Lake Keowee and Lake Hartwell Connected?

They’re both part of the Savannah River Basin but are not directly connected by water.

Can You Land a Seaplane on Lake Hartwell?

Yes, with proper FAA clearance and safety measures. It’s best to notify local authorities beforehand.

Final Thoughts

Lake Hartwell offers more than just lakefront views — it’s a vibrant place full of natural wonders, deep history, and endless opportunities to relax, fish, explore, and connect with family.

If you're looking for a weekend escape or a forever home on the water, I’d be honored to help guide you there.

Jeff Turpin
📞 864-940-7075
📍 Seneca, SC
💼 Real Local / Real Brokerage LLC
Helping Upstate SC families find their perfect place — on the lake or beyond.