Douglas County, SD Water Table Trend
The nearest real water-table reading to Douglas County, SD
The closest qualifying well to Douglas County is 40 miles away in Boyd County, NE, where the trend runs holding roughly steady.
Douglas County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Douglas 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 Boyd 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.
Douglas County, South Dakota in brief
About 2,849 people live across Douglas County's 432 square miles, in South Dakota. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Douglas County isn't one of them yet, see the methodology guide for the exact qualifying bar.