Jasper County, SC Water Table Trend
Jasper County's groundwater trend, from USGS's own readings
Jasper County's long-term well puts the trend at 1.1 ft per decade, declining, slower than most declining counties, based on 90 measurements since 1996.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Jasper County's source well, in detail
Depth to water at the last reading was 64.4 ft below land surface. Readings span 1996-01-01 to 2026-10-26, 90 measurements from USGS well USGS-323704080594509 (Jas- 425), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Jasper County compares nationally
Jasper County sits at rank 1103rd 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. Jasper County, South Carolina is home to about 35,618 people. See the fastest-moving counties guide for how Jasper County stacks up against the most extreme cases nationally.
If you own a well in Jasper County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Jasper County, that trend is real, not assumed: 1.1 ft per decade over 31 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Jasper 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.