Stephenson County, IL Water Table Trend
What the closest monitoring well shows for Stephenson County
The closest qualifying well to Stephenson County is 23 miles away in Green County, WI, where the trend runs rising, getting shallower over time.
Stephenson County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Stephenson 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 Green County, WI'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.
Stephenson County, Illinois in brief
About 43,088 people live across Stephenson County's 564 square miles, in Illinois. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Stephenson County isn't one of them yet, see the methodology guide for the exact qualifying bar.