Mississippi County, MO Water Table Trend
Mississippi County, MO: what the water table is actually doing
Over 70 years of USGS readings, the well tracking Mississippi County's aquifer is holding roughly steady: 0.1 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Mississippi County's source well, in detail
Depth to water at the last reading was 10.1 ft below land surface. Readings span 1956-10-15 to 2026-06-24, 89 measurements from USGS well MO005-364643089212301 (East Prairie), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Mississippi County compares nationally
Mississippi County sits at rank 707th 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. Mississippi County, Missouri is home to about 11,750 people. See the fastest-moving counties guide for how Mississippi 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 Mississippi 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.