Twin Lakes is a lake in Edgar County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.

How deep is Twin Lakes?

Twin Lakes has a maximum depth of 26.7 feet and an average depth of 10.2 feet. The lake covers 163 acres.

Are there boat ramps on Twin Lakes?

Twin Lakes has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Twin Lakes - East, Twin Lakes - Central, Twin Lakes - West. Public access is listed as yes.

Can I fish at Twin Lakes?

Twin Lakes has 3 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Illinois's fish and wildlife agency, so check its current regulations before you go.

Twin Lakes

Edgar County, Illinois163 acresView map Directions

No nutrient or algae sampling on record from Illinois EPA for this lake.

Max depth

26.7 ft

Bathymetric survey

Area

163 acres

Surface area

Shoreline

8.2 mi

Measured length

Impaired · Algal growth
27 ft max depth
Public access

See the measurements Directions Where to stay

Twin Lakes in Edgar County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 26.7 ft. Surface area: 163 acres.

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Twin Lakes is a 163-acre lake in Edgar County, Illinois with a maximum depth of 27 feet (10-foot average). Limited fish-species data available. Public access is available with 3 public boat landings.

Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.

What Twin Lakes is good for

From access and monitoring records, not editorial picks.

Boat launch3 documented ramps

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Twin Lakes is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, cause unknown, mercury, nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.

Whether Twin Lakes is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Twin Lakes

These are the measurements Illinois EPA publishes for Twin Lakes, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Twin Lakes

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

26.7 ft

Average depth

10.2 ft

Surface area

163 acres

Shoreline

8.2 mi

Public access

Yes

Listed by Illinois EPA

Recreation & Access

Boat Landings

Yes

Public Access

Twin Lakes - EastPublic
Twin Lakes - CentralPublic
Twin Lakes - WestPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Twin Lakes

Compare lakeside cabins, hotels, and vacation rentals near Twin Lakes in Edgar County, Illinois — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Twin Lakes

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Fishing Twin Lakes

→ Twin Lakes fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Twin Lakes is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Algal growthCause unknownMercuryNutrients (phosphorus, nitrogen)Turbidity

Designated uses not supporting: Fish consumption, Other.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit IL_RBL · Official waterbody report

Nearby Lakes in Edgar County

Lincoln Trail State Park Lake20.4 miView →Mill Creek Watershed Impoundment Reservoir21 miView →Mill Creek Watershed Impoundment Reservoir—View →Lake Oakland17.7 miView →Walnut Point State Park Lake19.1 miView →Charleston Side Channel LakeHypereutrophic—View →

Frequently asked questions about Twin Lakes

Where is Twin Lakes?: Twin Lakes is a lake in Edgar County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Twin Lakes?: Twin Lakes in Edgar County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 26.7 ft. Surface area: 163 acres.
Is Twin Lakes safe to swim in?: Nutrient and algae readings are not a swimming clearance. Twin Lakes is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, cause unknown, mercury, nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.
How deep is Twin Lakes?: Twin Lakes has a maximum depth of 26.7 feet and an average depth of 10.2 feet. The lake covers 163 acres.
Are there boat ramps on Twin Lakes?: Twin Lakes has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Twin Lakes - East, Twin Lakes - Central, Twin Lakes - West. Public access is listed as yes.
Can I fish at Twin Lakes?: Twin Lakes has 3 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Illinois's fish and wildlife agency, so check its current regulations before you go.