Knox County, OH Water Table Trend
Knox County, OH: what the water table is actually doing
Knox County's representative monitoring well shows depth to water rising, getting shallower over time, a fitted trend of 0.6 ft per decade over 61 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Knox County's source well, in detail
Depth to water at the last reading was 5.5 ft below land surface. Readings span 1965-10-01 to 2026-08-13, 69 measurements from USGS well OH015-402344082300700 (K-1 Oh), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Knox County compares nationally
Knox County sits at rank 321st 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. Knox County, Ohio is home to about 63,848 people. See the fastest-moving counties guide for how Knox 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 Knox 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.