Martin County, NC Water Table Trend
Martin County, NC: the closest actual trend
The closest qualifying well to Martin County is 17 miles away in Bertie County, NC, where the trend runs holding roughly steady.
Martin County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Martin 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 Bertie County, NC'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.
Martin County, North Carolina in brief
About 21,523 people live across Martin County's 456 square miles, in North Carolina. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Martin County isn't one of them yet, see the methodology guide for the exact qualifying bar.