Cottonwood County, MN Water Table Trend
Cottonwood County's groundwater trend, from USGS's own readings
Cottonwood County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0.2 ft per decade over 26 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Cottonwood County's source well, in detail
Depth to water at the last reading was 11.2 ft below land surface. Readings span 1998-11-04 to 2024-08-13, 45 measurements from USGS well USGS-435239095074801 (Wln07 105n36w23dcccbc01 Windom D28 0000620728), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Cottonwood County compares nationally
Cottonwood County sits at rank 813th 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. Cottonwood County, Minnesota is home to about 11,338 people. See the fastest-moving counties guide for how Cottonwood 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 Cottonwood 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.