Dallas County, TX Water Table Trend
What the closest monitoring well shows for Dallas County
Johnston County, OK, 107 miles from Dallas County, is the closest county with a qualifying well, and its water table is declining at a typical pace for a declining county.
No well inside Dallas County clears this site's 15-year qualifying bar, so this is the closest real reading, not a measurement of Dallas County's own aquifer. Worth checking your own well's depth log against it rather than assuming it matches. See Johnston County, OK'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.
About Dallas County
Dallas County, Texas covers 873 square miles and is home to about 2,656,028 people. USGS's National Groundwater Monitoring Network covers 1,449 of 3,222 US counties (45%) today; Dallas County isn't one of them yet, see the methodology guide for the exact qualifying bar.