Cass County, IA Water Table Trend
The nearest real water-table reading to Cass County, IA
The closest qualifying well to Cass County is 25 miles away in Montgomery County, IA, where the trend runs rising, getting shallower over time.
Cass County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Cass 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 Montgomery 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.
Cass County, Iowa in brief
About 13,024 people live across Cass County's 564 square miles, in Iowa. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Cass County isn't one of them yet, see the methodology guide for the exact qualifying bar.