Teton County, ID Water Table Trend
Teton County's groundwater trend, from USGS's own readings
Teton County's long-term well puts the trend at 0 ft per decade, holding roughly steady, based on 259 measurements since 1958.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Teton County's source well, in detail
Depth to water at the last reading was 195.9 ft below land surface. Readings span 1958-07-18 to 2023-05-09, 259 measurements from USGS well USGS-434936111143601 (06n 44e 22ddc1), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Teton County compares nationally
Teton County sits at rank 618th 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. Teton County, Idaho is home to about 12,932 people. See the fastest-moving counties guide for how Teton 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 Teton 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.