Iowa County, IA Water Table Trend
Iowa County, IA: what the water table is actually doing
Iowa County's representative monitoring well shows depth to water rising, getting shallower over time, a fitted trend of 0.6 ft per decade over 28 years of readings.
One well stands in for Iowa 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 5.8 ft below land surface. Readings span 1997-07-07 to 2025-06-11, 14 measurements from USGS well USGS-413248092011301 (078n10w21bcd 1997nawqa Iowa County), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Iowa County ranks
Of the 1,449 US counties with a usable trend, Iowa County ranks 329th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 16,423 people live in Iowa County, Iowa. See the fastest-moving counties guide for how Iowa County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Iowa 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.