DeKalb County, GA Water Table Trend
DeKalb County, GA: what the water table is actually doing
DeKalb County's representative monitoring well shows depth to water holding roughly steady, a fitted trend of 0.3 ft per decade over 47 years of readings.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
DeKalb County's source well, in detail
Depth to water at the last reading was 9 ft below land surface. Readings span 1980-02-20 to 2026-09-28, 322 measurements from USGS well USGS-335517084164001 (11ff04), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How DeKalb County compares nationally
DeKalb County sits at rank 896th 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. DeKalb County, Georgia is home to about 770,307 people. See the fastest-moving counties guide for how DeKalb 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 DeKalb 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.