Forbes Lake, Illinois, USA

Welcome to the ultimate guide for history, statistics, local fun facts and the best things to do at Forbes Lake.

If you’re considering Forbes Lake vacation rentals, we’ve made it super easy to explore accommodations and nearby hotels using the interactive map below. Simply click on a listing to compare similar properties, best rates and availability for your dates. Or keep scrolling to read our Forbes Lake guide!

Forbes Lake visitor and community guide

Lake Locations: USA - Midwest - Illinois - Southern -

What started as a humble two acre lake in a twenty acre park has grown into one of southern Illinois’ best fishing lakes and a great family destination. Stephen A. Forbes Lake, named for the world renowned natural scientist, has great fishing, beautiful water and abundant recreation opportunities.

The Stephen A. Forbes Lake is surrounded by the Stephen A. Forbes State Park which has been gradually adding land since 1959 and today encompasses 3,103 acres. Forbes Lake has grown from two acres to 543 acres because of the construction of a dam on the Lost Fork, a tributary of Skillet Fork and the Little Wabash and Wabash River. Construction on the dam started in 1962 and was completed in 1963. It was built by the Illinois Department of Conservation with matching funds from the federal Dingell-Johnson Program which was created to improve sport fisheries.

Forbes Lake has proven itself to be a good sport fishery. There are healthy populations of bluegill and crappie, and the lake is stocked every year with large mouth bass. In past years it has been stocked with redear sunfish, channel catfish, hybrid-striped bass, tiger muskie and walleye. Access to the lake is from one of several boat ramps, and there is a marina with gas, boat rentals and provisions. A section of the lake is marked to allow water skiing. Swimming is allowed, but only at the beach at Rocky Point.

The state park has a picnic area and softball and volleyball courts. A floating walkway over Forbes Lake connects the campground to the marina and a lakeside restaurant. Multiple trails cross the park including hiking trails and an equestrian trail with its own campground. The park includes oak and hickory forests, and over 2,000 acres around Forbes Lake are open for hunting. Hunters can take turkey and deer by bow only and small game like squirrel, quail and rabbit in season. Fields planted with sunflowers attract both doves and dove hunters.

Just below the dam on Forbes Lake, the Sam Parr Biological Station includes a laboratory, accommodations for scientists and students, and drainable ponds. Established in 1966, the aquatic research center is used by the Illinois Natural History Survey. The station has been instrumental in studying the life cycle of several fish species including channel catfish and large and small mouth bass as well as uses for other fish species. Some of the facilities can be toured by classrooms with prior arrangements.

The Stephen A. Forbes Lake is two miles east of the Village of Omega and 15 miles northeast of Salem in Marion County. Salem was established in 1823 as the county seat for Marion County. It is also known as the birthplace of Kraft’s Miracle Whip. Originally called Max’s X-tra Fine Salad Dressing, Kraft bought the recipe in 1931 from Max Crossett’s Cafe for $300. Salem has restaurants, shops and any amenities a visitor might need. There are no vacation rentals in the state park, but Salem has various accommodations. For visitors that want to extend their stay, there is real estate for sale.

With its clean water, plentiful fish and wildlife, and hickory and oak forests, Forbes Lake, the little lake that could, is sure to delight visitors.

Custom Forbes Lake house decor

Read our full review of these personalized lake house signs.

Things to do at Forbes Lake

  • Fishing
  • Boating
  • Swimming
  • Beach
  • Water Skiing
  • Camping
  • Campground
  • Picnicking
  • Hiking
  • Horseback Riding
  • Hunting
  • Wildlife Viewing
  • Birding
  • State Park

Fish species found at Forbes Lake

  • Bass
  • Bluegill
  • Catfish
  • Channel Catfish
  • Crappie
  • Largemouth Bass
  • Muskellunge
  • Perch
  • Pike
  • Redear Sunfish (Shellcracker)
  • Smallmouth Bass
  • Striped Bass
  • Sunfish
  • Tiger Muskellunge
  • Walleye

Best hotels and vacation rentals at Forbes Lake

The Forbes Lake map shown above is a simple and stress-free way to search for trip accommodations. But if you want to take a deeper dive to find the ideal waterfront home, cabin, condo, hotel or resort, visit our favorite lodging partners by clicking the buttons below.

Note: These are affiliate links so we may earn a small commission if you book through them. While there is no extra cost to you, it helps provide resources to keep our site running (thank you)! You can read our full disclosure policy here.

Forbes Lake photo gallery

New photos coming soon!

Forbes Lake statistics & helpful links


Lake Type: Natural Freshwater Lake, Dammed

Water Level Control: Illinois Department of Conservation

Surface Area: 543 acres

Shoreline Length: 18 miles

Normal Elevation (Full Pond): 513 feet

Average Depth: 15 feet

Maximum Depth: 31 feet

Completion Year: 1963

Water Residence Time: .6 year

Drainage Area: 21 sq. miles

We strive to keep the information on LakeLubbers as accurate as possible. However, if you’ve found something in this article that needs updating, we’d certainly love to hear from you! Please fill out our Content Correction form.

Advertise your Forbes Lake vacation rental

LakeLubbers will soon offer homeowners and property managers the opportunity to to showcase their vacation rentals to the thousands of lake lovers searching our site daily for accommodations. If you’d like additional details, please contact our advertising team here.


Looking for the Forbes Lake forum?

LakeLubbers previously offered visitors the ability to create accounts and participate in lake forums. When we overhauled the site’s content management system in 2021 we had to disable those features. We’re evaluating options and welcome your comments and feedback here.

We also encourage you to join our lake-lovin’ community on Facebook and Instagram!

Spread the word! Share our Forbes Lake article with your fellow Lake Lubbers!