Yakima County, WA Water Table Trend
The nearest real water-table reading to Yakima County, WA
The closest qualifying well to Yakima County is 73 miles away in Sherman County, OR, where the trend runs rising, getting shallower over time.
Yakima County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Yakima 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 Sherman County, OR'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.
Yakima County, Washington in brief
About 258,523 people live across Yakima County's 4,295 square miles, in Washington. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Yakima County isn't one of them yet, see the methodology guide for the exact qualifying bar.