Clarion County, PA Water Table Trend
Clarion County, PA: what the water table is actually doing
Clarion County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0.2 ft per decade over 76 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Clarion County's source well, in detail
Depth to water at the last reading was 33.5 ft below land surface. Readings span 1950-08-09 to 2026-09-14, 215 measurements from USGS well USGS-412020079133901 (Cr 3 Clarion 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.
How Clarion County compares nationally
Clarion County sits at rank 517th of 1,449 ranked counties, ordered rising-to-declining, so a low number means a rising water table and a high one means fast decline. Clarion County, Pennsylvania is home to about 36,855 people. See the fastest-moving counties guide for how Clarion County stacks up against the most extreme cases nationally.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Clarion County can be stable in depth and still worth testing for quality, or declining and still test clean, the two are measured separately, and only a direct test settles the second one.