Simpson County, MS Water Table Trend
Simpson County, MS: the closest actual trend
Warren County, MS, 63 miles from Simpson County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Simpson County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Simpson County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Warren County, MS'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 Simpson County
Simpson County, Mississippi covers 589 square miles and is home to about 25,597 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Simpson County isn't one of them yet, see the methodology guide for the exact qualifying bar.