Big Horn County, WY Water Table Trend
Is the water table dropping in Big Horn County, WY?
Big Horn County's long-term well puts the trend at 0.3 ft per decade, holding roughly steady, based on 47 measurements since 1999.
One well stands in for Big Horn County's whole aquifer here, the honest simplification every page on this site carries.
What the well actually measured
The most recent reading put water 19.8 ft below land surface. Readings span 1999-11-04 to 2026-10-15, 47 measurements from USGS well USGS-444719108050501 (56-093-32bcc01 Sus1-30), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Big Horn County ranks
Of the 1,449 US counties with a usable trend, Big Horn County ranks 428th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 12,084 people live in Big Horn County, Wyoming. See the fastest-moving counties guide for how Big Horn County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Big Horn County's water table is rising or falling is independent of what's actually in the water. Depletion can concentrate naturally-occurring minerals, so it's worth checking directly with a water test rather than assuming a depth trend says anything about quality.