Harrison County, IN Water Table Trend
Is the water table dropping in Harrison County, IN?
Harrison County's long-term well puts the trend at 0.4 ft per decade, holding roughly steady, based on 319 measurements since 1967.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Harrison County's source well, in detail
Depth to water at the last reading was 17 ft below land surface. Readings span 1967-03-27 to 2026-10-07, 319 measurements from USGS well USGS-382323086044501 (Harrison 8 (Hr 8)), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Harrison County compares nationally
Harrison County sits at rank 398th 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. Harrison County, Indiana is home to about 39,978 people. See the fastest-moving counties guide for how Harrison 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 Harrison 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.