Lewis County, ID Water Table Trend
The nearest real water-table reading to Lewis County, ID
Whitman County, WA, 70 miles from Lewis County, is the closest county with a qualifying well, and its water table is holding roughly steady.
No well inside Lewis County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Lewis County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Whitman County, WA'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 Lewis County
Lewis County, Idaho covers 479 square miles and is home to about 3,728 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Lewis County isn't one of them yet, see the methodology guide for the exact qualifying bar.