Snohomish County, WA Water Table Trend
The nearest real water-table reading to Snohomish County, WA
The closest qualifying well to Snohomish County is 30 miles away in Skagit County, WA, where the trend runs holding roughly steady.
Snohomish County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Snohomish 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 Skagit 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.
Snohomish County, Washington in brief
About 864,113 people live across Snohomish County's 2,087 square miles, in Washington. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Snohomish County isn't one of them yet, see the methodology guide for the exact qualifying bar.