Knox County, IL Water Table Trend
What the closest monitoring well shows for Knox County
Warren County, IL, 22 miles from Knox County, is the closest county with a qualifying well, and its water table is declining faster than most declining counties.
No well inside Knox County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Knox County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Warren County, IL'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 Knox County
Knox County, Illinois covers 716 square miles and is home to about 48,716 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Knox County isn't one of them yet, see the methodology guide for the exact qualifying bar.