Portage County, OH Water Table Trend
Portage County's groundwater trend, from USGS's own readings
Portage County's representative monitoring well shows depth to water declining at a typical pace for a declining county, a fitted trend of 3.3 ft per decade over 32 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Portage County's source well, in detail
Depth to water at the last reading was 22.3 ft below land surface. Readings span 1994-05-26 to 2026-08-10, 61 measurements from USGS well OH015-410931081192900 (Po-123 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 Portage County compares nationally
Portage County sits at rank 1256th 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. Portage County, Ohio is home to about 163,839 people. See the fastest-moving counties guide for how Portage County stacks up against the most extreme cases nationally.
If you own a well in Portage County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Portage County, that trend is real, not assumed: 3.3 ft per decade over 32 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Portage 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.