Otsego County, MI Water Table Trend
Otsego County, MI: the closest actual trend
Cheboygan County, MI, 32 miles from Otsego County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Otsego County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Otsego County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Cheboygan County, MI'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 Otsego County
Otsego County, Michigan covers 515 square miles and is home to about 26,083 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Otsego County isn't one of them yet, see the methodology guide for the exact qualifying bar.