Audrain County, MO Water Table Trend
Audrain County, MO: what the water table is actually doing
Audrain County's representative monitoring well shows depth to water rising, getting shallower over time, a fitted trend of 8.4 ft per decade over 87 years of readings.
One well stands in for Audrain 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 93.7 ft below land surface. Readings span 1939-01-01 to 2026-05-27, 49 measurements from USGS well MO005-391825091285101 (Vandalia), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Audrain County ranks
Of the 1,449 US counties with a usable trend, Audrain County ranks 34th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 24,304 people live in Audrain County, Missouri. See the fastest-moving counties guide for how Audrain County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Audrain 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.