Kendall County, IL Water Table Trend
Kendall County, IL: the closest actual trend
The closest qualifying well to Kendall County is 20 miles away in Grundy County, IL, where the trend runs rising, getting shallower over time.
Kendall County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Kendall County's own number. If you own a well here, comparing your own depth log against this regional figure is worth doing before assuming either way. See Grundy 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.
Kendall County, Illinois in brief
About 143,171 people live across Kendall County's 320 square miles, in Illinois. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Kendall County isn't one of them yet, see the methodology guide for the exact qualifying bar.