Hughes County, SD Water Table Trend
The nearest real water-table reading to Hughes County, SD
Mellette County, SD, 68 miles from Hughes County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Hughes County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Hughes County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Mellette 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.
About Hughes County
Hughes County, South Dakota covers 742 square miles and is home to about 17,526 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Hughes County isn't one of them yet, see the methodology guide for the exact qualifying bar.