Henry County, OH Water Table Trend
Is the water table dropping in Henry County, OH?
Henry County's long-term well puts the trend at 0.4 ft per decade, holding roughly steady, based on 66 measurements since 1969.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Henry County's source well, in detail
Depth to water at the last reading was 21 ft below land surface. Readings span 1969-07-01 to 2026-06-30, 66 measurements from USGS well OH015-412123083574000 (Hy-2 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 Henry County compares nationally
Henry County sits at rank 382nd 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. Henry County, Ohio is home to about 27,536 people. See the fastest-moving counties guide for how Henry 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 Henry 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.