Cache County, UT Water Table Trend
Is the water table dropping in Cache County, UT?
Cache County's long-term well puts the trend at 0.7 ft per decade, declining, slower than most declining counties, based on 283 measurements since 1935.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Cache County's source well, in detail
Depth to water at the last reading was 15.5 ft below land surface. Readings span 1935-10-05 to 2026-03-24, 283 measurements from USGS well USGS-415450111490801 ((A-14- 1)34adb- 1), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Cache County compares nationally
Cache County sits at rank 1011th 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. Cache County, Utah is home to about 145,487 people. See the fastest-moving counties guide for how Cache County stacks up against the most extreme cases nationally.
If you own a well in Cache County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Cache County, that trend is real, not assumed: 0.7 ft per decade over 91 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Cache 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.