Allen County, KS Water Table Trend
The nearest real water-table reading to Allen County, KS
The closest qualifying well to Allen County is 58 miles away in Bates County, MO, where the trend runs declining faster than most declining counties.
Allen County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Allen 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 Bates County, MO'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.
Allen County, Kansas in brief
About 12,425 people live across Allen County's 500 square miles, in Kansas. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Allen County isn't one of them yet, see the methodology guide for the exact qualifying bar.