Plymouth County, IA Water Table Trend
What the closest monitoring well shows for Plymouth County
The closest qualifying well to Plymouth County is 30 miles away in Dakota County, NE, where the trend runs holding roughly steady.
Plymouth County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Plymouth 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 Dakota County, NE'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.
Plymouth County, Iowa in brief
About 25,825 people live across Plymouth County's 863 square miles, in Iowa. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Plymouth County isn't one of them yet, see the methodology guide for the exact qualifying bar.