Llano County, TX Water Table Trend
The nearest real water-table reading to Llano County, TX
The closest qualifying well to Llano County is 59 miles away in Hays County, TX, where the trend runs rising, getting shallower over time.
Llano County itself has no monitoring well with enough history to call its own trend, so treat this as a regional estimate, not Llano County's own number. If you own a well here, comparing your own depth log against this regional figure is worth doing before assuming either way. See Hays County, TX's full page. See the no-data guide for why a county this close to a qualifying well still doesn't get its own number.
Llano County, Texas in brief
About 23,163 people live across Llano County's 934 square miles, in Texas. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Llano County isn't one of them yet, see the methodology guide for the exact qualifying bar.