Cerro Gordo County, IA Water Table Trend
Cerro Gordo County's groundwater trend, from USGS's own readings
Cerro Gordo County's long-term well puts the trend at 0.4 ft per decade, holding roughly steady, based on 16 measurements since 1997.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Cerro Gordo County's source well, in detail
Depth to water at the last reading was 6.3 ft below land surface. Readings span 1997-07-30 to 2025-06-10, 16 measurements from USGS well USGS-431339093155901 (097n21w13abab 1997nawqa Cerro Gordo County), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Cerro Gordo County compares nationally
Cerro Gordo County sits at rank 931st 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. Cerro Gordo County, Iowa is home to about 42,493 people. See the fastest-moving counties guide for how Cerro Gordo 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 Cerro Gordo 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.