Caddo Parish, LA Water Table Trend
Is the water table dropping in Caddo Parish, LA?
Over 70 years of USGS readings, the well tracking Caddo Parish's aquifer is holding roughly steady: 0.5 ft per decade.
This is one representative well, not a county-wide survey, the same grain limit every page here discloses.
Caddo Parish's source well, in detail
Depth to water at the last reading was 18.2 ft below land surface. Readings span 1956-12-20 to 2026-08-31, 498 measurements from USGS well USGS-324207093484801 (Cd-336), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
How Caddo Parish compares nationally
Caddo Parish sits at rank 358th 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. Caddo Parish, Louisiana is home to about 224,893 people. See the fastest-moving counties guide for how Caddo Parish 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 Caddo Parish 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.