Mohave County, AZ Water Table Trend
Is the water table dropping in Mohave County, AZ?
Over 75 years of USGS readings, the well tracking Mohave County's aquifer is declining at a typical pace for a declining county: 1.5 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Mohave County's source well, in detail
Depth to water at the last reading was 219.1 ft below land surface. Readings span 1950-09-14 to 2026-01-22, 47 measurements from USGS well USGS-344408114260401 (B-16-20h11ccd1), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Mohave County compares nationally
Mohave County sits at rank 1139th 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. Mohave County, Arizona is home to about 226,479 people. See the fastest-moving counties guide for how Mohave County stacks up against the most extreme cases nationally.
If you own a well in Mohave County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Mohave County, that trend is real, not assumed: 1.5 ft per decade over 75 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Mohave 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.