Creek IL

Clark Creek

Illinois • 37.1837, -90.4978

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

18 mi

30 km

Elevation

0′ → 0′

0 ft drop

Stream Order

Medium River

Slope

0.00%

0.0 ft/mi

Drainage

55 mi²

143 km²

Avg Flow

-- cfs

0.9 mph velocity

Path to Mouth

1,030 mi

1,657 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

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Data from USGS & NOAA for informational purposes only. Read source and safety notes

Access Sites on Clark Creek

There are 2 boat ramps, launches, and public access points on Clark Creek.