Boundary County, ID Water Table Trend
The nearest real water-table reading to Boundary County, ID
Lincoln County, MT, 51 miles from Boundary County, is the closest county with a qualifying well, and its water table is rising, getting shallower over time.
No well inside Boundary County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Boundary County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Lincoln County, MT'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 Boundary County
Boundary County, Idaho covers 1,269 square miles and is home to about 14,040 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Boundary County isn't one of them yet, see the methodology guide for the exact qualifying bar.