Crawford County, IA Water Table Trend
Crawford County's groundwater trend, from USGS's own readings
Crawford County's representative monitoring well shows depth to water declining, slower than most declining counties, a fitted trend of 0.8 ft per decade over 18 years of readings.
One well stands in for Crawford 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 24.5 ft below land surface. Readings span 2008-05-07 to 2026-09-22, 143 measurements from USGS well USGS-420212095235701 (083n39w04bbb 2008iacrn-6), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Crawford County ranks
Of the 1,449 US counties with a usable trend, Crawford County ranks 1036th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 16,378 people live in Crawford County, Iowa. See the fastest-moving counties guide for how Crawford County stacks up against the most extreme cases nationally.
What a declining table means for a well pump
Because Crawford County's water table is actually declining, not just a general worry, a well owner here should consider comparing home-warranty plans that cover well-pump failure before one happens.
A dropping table says nothing about water quality
Whether Crawford 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.