Winneshiek County, IA Water Table Trend
Winneshiek County, IA: the closest actual trend
Allamakee County, IA, 24 miles from Winneshiek County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Winneshiek County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Winneshiek County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Allamakee County, IA's full page. See the no-data guide for why a county this close to a qualifying well still doesn't get its own number.
About Winneshiek County
Winneshiek County, Iowa covers 690 square miles and is home to about 19,723 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Winneshiek County isn't one of them yet, see the methodology guide for the exact qualifying bar.