20 metro-area supply systems, lowest first · TWDB conditions as of Sep 19, 2026
28,543 af of 1.96M af conservation capacity across 1 reservoir
324,694 af of 1.27M af conservation capacity across 3 reservoirs
1.03M af of 3.38M af conservation capacity across 2 reservoirs
265,236 af of 862,151 af conservation capacity across 4 reservoirs
395,755 af of 945,568 af conservation capacity across 4 reservoirs
272,033 af of 596,207 af conservation capacity across 2 reservoirs
501,887 af of 1.08M af conservation capacity across 3 reservoirs
1.95M af of 2.93M af conservation capacity across 2 reservoirs
394,506 af of 562,011 af conservation capacity across 3 reservoirs
1.99M af of 2.45M af conservation capacity across 7 reservoirs
34,147 af of 39,522 af conservation capacity across 1 reservoir
3.38M af of 3.84M af conservation capacity across 7 reservoirs
2.01M af of 2.15M af conservation capacity across 5 reservoirs
2.09M af of 2.23M af conservation capacity across 4 reservoirs
415,104 af of 432,631 af conservation capacity across 1 reservoir
122,593 af of 122,593 af conservation capacity across 1 reservoir
Groupings are TWDB's municipal water-supply systems: the monitored reservoirs each metro area draws on, not everything on its distribution network — groundwater, run-of-river rights and purchased water are outside this accounting. A reservoir can supply more than one system (Lake Texoma serves both Dallas and Texarkana), so systems overlap and can't be added together. El Paso's figure includes Elephant Butte in New Mexico, which is excluded from this site's statewide totals but is that city's principal reservoir supply.