Cedar Lake
Jackson County, Illinois1,615 acresView mapDirections
No nutrient or algae sampling on record from Illinois EPA for this lake.
- Impaired · Mercury
- 45 ft max depth
Cedar Lake in Jackson County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 45 ft. Surface area: 1615 acres.
Cedar Lake is a 1,615-acre lake in Jackson County, Illinois with a maximum depth of 45 feet (12-foot average).
Source: EPA Water Quality Portal sampling records, Illinois EPA. Methodology: how these readings are compared.
What Cedar Lake is good for
From access and monitoring records, not editorial picks.
- Deep water45 ft surveyed max depth
- Big water1,615 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Cedar Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Cedar Lake 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.
Water quality measurements for Cedar Lake
These are the measurements Illinois EPA publishes for Cedar Lake, 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 Cedar Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
45 ft
Average depth
12 ft
Surface area
1,615 acres
Shoreline
42.6 mi
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Stays near Cedar Lake
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Fishing Cedar Lake
EPA Impairment Status
Cedar Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
Source: EPA ATTAINS assessment unit IL_RNE · Official waterbody report
Nearby Lakes in Jackson County
Frequently asked questions about Cedar Lake
Where is Cedar Lake?
- Cedar Lake is a lake in Jackson County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Cedar Lake?
- Cedar Lake in Jackson County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported. Maximum depth: 45 ft. Surface area: 1615 acres.
Is Cedar Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Cedar Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
How deep is Cedar Lake?
- Cedar Lake has a maximum depth of 45 feet and an average depth of 12 feet. The lake covers 1615 acres.
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Where this data comes from
Measurements for Cedar Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database