Mifflin County, PA Water Table Trend
Mifflin County, PA: what the water table is actually doing
Over 43 years of USGS readings, the well tracking Mifflin County's aquifer is holding roughly steady: 0.1 ft per decade.
One well stands in for Mifflin 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 52.9 ft below land surface. Readings span 1983-04-26 to 2026-08-12, 282 measurements from USGS well USGS-404140077354001 (Mf 344 Mifflin County Observation Well), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Mifflin County ranks
Of the 1,449 US counties with a usable trend, Mifflin County ranks 738th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 45,935 people live in Mifflin County, Pennsylvania. See the fastest-moving counties guide for how Mifflin County stacks up against the most extreme cases nationally.
A dropping table says nothing about water quality
Whether Mifflin 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.