Bexar County, TX Water Table Trend
Bexar County, TX: what the water table is actually doing
Bexar County's long-term well puts the trend at 2.3 ft per decade, declining at a typical pace for a declining county, based on 53 measurements since 1950.
One well stands in for Bexar County's whole aquifer here, the honest simplification every page on this site carries.
What the well actually measured
The most recent reading put water 261.3 ft below land surface. Readings span 1950-03-01 to 2026-08-27, 53 measurements from USGS well USGS-293515098325201 (Ay-68-28-202 (Shavano Park 2)), part of the National Water Information System. The qualifying bar and the OLS fit behind this trend are documented in the methodology guide.
Where Bexar County ranks
Of the 1,449 US counties with a usable trend, Bexar County ranks 1211th from fastest-rising to fastest-declining, 1 is the fastest-rising water table measured, 1449 the fastest-declining. About 2,127,737 people live in Bexar County, Texas. See the fastest-moving counties guide for how Bexar County stacks up against the most extreme cases nationally.
What a declining table means for a well pump
Because Bexar County's water table is actually declining, not just a general worry, a well owner here should consider comparing home-warranty plans that cover well-pump failure before one happens.
A dropping table says nothing about water quality
Whether Bexar County's water table is rising or falling is independent of what's actually in the water. Depletion can concentrate naturally-occurring minerals, so it's worth checking directly with a water test rather than assuming a depth trend says anything about quality.