Clark County, SD Water Table Trend
What the closest monitoring well shows for Clark County
The closest qualifying well to Clark County is 41 miles away in Beadle County, SD, where the trend runs rising, getting shallower over time.
Clark County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Clark 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 Beadle County, SD'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.
Clark County, South Dakota in brief
About 3,974 people live across Clark County's 958 square miles, in South Dakota. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Clark County isn't one of them yet, see the methodology guide for the exact qualifying bar.