Marshall County, IN Water Table Trend
Marshall County, IN: the closest actual trend
Fulton County, IN, 19 miles from Marshall County, is the closest county with a qualifying well, and its water table is holding roughly steady.
No well inside Marshall County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Marshall County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Fulton County, IN'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 Marshall County
Marshall County, Indiana covers 444 square miles and is home to about 46,464 people. 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.