Creek SD

Irish Creek

South Dakota • 45.3517, -101.6524

Reviewed mapped path Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

34 mi

55 km

Elevation

2,457′ → 2,006′

451 ft drop

Stream Order

Medium River

Slope

0.25%

13.1 ft/mi

Drainage

104 mi²

270 km²

Avg Flow

-- cfs

1.1 mph velocity

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 Irish Creek

There are 2 linked public-access records for Irish Creek.