Marshall County, OK Water Table Trend
What the closest monitoring well shows for Marshall County
The closest qualifying well to Marshall County is 21 miles away in Johnston County, OK, where the trend runs declining at a typical pace for a declining county.
Marshall County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Marshall 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 Johnston County, OK'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.
Marshall County, Oklahoma in brief
About 16,147 people live across Marshall County's 371 square miles, in Oklahoma. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Marshall County isn't one of them yet, see the methodology guide for the exact qualifying bar.