Columbia County, AR Water Table Trend
Is the water table dropping in Columbia County, AR?
Columbia County's long-term well puts the trend at 3.6 ft per decade, rising, getting shallower over time, based on 385 measurements since 1953.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Columbia County's source well, in detail
Depth to water at the last reading was 263.7 ft below land surface. Readings span 1953-01-29 to 2026-08-21, 385 measurements from USGS well USGS-331609093144902 (17s21w11dcc2 Magnolia), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Columbia County compares nationally
Columbia County sits at rank 77th 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. Columbia County, Arkansas is home to about 22,024 people. See the fastest-moving counties guide for how Columbia 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 Columbia 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.