Boone County, MO Water Table Trend
Boone County's groundwater trend, from USGS's own readings
Boone County's representative monitoring well shows depth to water declining faster than most declining counties, a fitted trend of 13.4 ft per decade over 71 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Boone County's source well, in detail
Depth to water at the last reading was 172.1 ft below land surface. Readings span 1955-06-05 to 2026-06-03, 60 measurements from USGS well MO005-385718092234201 (Columbia), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Boone County compares nationally
Boone County sits at rank 1418th 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. Boone County, Missouri is home to about 192,154 people. See the fastest-moving counties guide for how Boone County stacks up against the most extreme cases nationally.
If you own a well in Boone County
A dropping water table means a residential pump has to reach deeper and work harder, which shortens its life. In Boone County, that trend is real, not assumed: 13.4 ft per decade over 71 years.
Depth and quality are separate questions
This page answers a depth question, not a quality one. A well in Boone 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.