Delaware County, IA Water Table Trend
The nearest real water-table reading to Delaware County, IA
Buchanan County, IA, 24 miles from Delaware County, is the closest county with a qualifying well, and its water table is holding roughly steady.
No well inside Delaware County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Delaware County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Buchanan 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 Delaware County
Delaware County, Iowa covers 578 square miles and is home to about 17,609 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Delaware County isn't one of them yet, see the methodology guide for the exact qualifying bar.