Jackson Park Inner Harbor Lake
Cook County, IllinoisView mapDirections
No nutrient or algae sampling on record from Illinois EPA for this lake.
- Impaired · Mercury
- Public access
- Limited data
Jackson Park Inner Harbor Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.
Jackson Park Inner Harbor Lake is a lake in Cook County, Illinois. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Illinois EPA, last sampled 2023-05-04. Methodology: how these readings are compared.
What Jackson Park Inner Harbor Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Jackson Park Inner Harbor Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pCBs. Check local advisories before you swim.
Whether Jackson Park Inner Harbor 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 Jackson Park Inner Harbor Lake
These are the measurements Illinois EPA publishes for Jackson Park Inner Harbor 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.
Ask about Jackson Park Inner Harbor Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Jackson Harbor - East Hayes DrivePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Jackson Park Inner Harbor Lake
Compare lakeside cabins, hotels, and vacation rentals near Jackson Park Inner Harbor Lake in Cook 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 Jackson Park Inner Harbor Lake
Prices for Oct 23–25, 4 adults. Change dates on the map below.
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Planning a trip? Cabins and lodging at Jackson Park Inner Harbor Lake → · more Illinois lake trips
Follow Jackson Park Inner Harbor Lake’s readings
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Fishing Jackson Park Inner Harbor Lake
Water quality readings over time
2 seasons of samples on record (2020–2022). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Improving-1 µg/L/yr2 years
EPA Impairment Status
Jackson Park Inner Harbor 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_QZM · Official waterbody report
Nearby Lakes in Cook County
Frequently asked questions about Jackson Park Inner Harbor Lake
Where is Jackson Park Inner Harbor Lake?
- Jackson Park Inner Harbor Lake is a lake in Cook County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.
What is the water quality of Jackson Park Inner Harbor Lake?
- Jackson Park Inner Harbor Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.
Is Jackson Park Inner Harbor Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Jackson Park Inner Harbor Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pCBs. Check local advisories before you swim.
Are there boat ramps on Jackson Park Inner Harbor Lake?
- Jackson Park Inner Harbor Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Jackson Harbor - East Hayes Drive. Public access is listed as yes.
Can I fish at Jackson Park Inner Harbor Lake?
- Jackson Park Inner Harbor Lake has 1 documented boat landing 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.
Explore Jackson Park Inner Harbor Lake across LakeQuality
Planning a trip around Indiana Dunes?
Jackson Park Inner Harbor Lake is about 27 miles from Indiana Dunes National Park. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Indiana Dunes →More lakes in Illinois
Other Lakes in Illinois
Where this data comes from
1 measurement from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- USGS Illinois Water Science Center
USGS-IL1 sample · 2023
Analytical methods
- Secchi disk method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory