Texas lake levels

The answer

Statewide reservoir storage in Texas

The water supply reservoirs that TWDB monitors in Texas held 72.2% of their combined conservation capacity in the current TWDB reading, dated 2026-10-19. That is 22,761,819 acre-feet of conservation storage against 31,531,332 acre-feet of conservation capacity, from the TWDB statewide reservoir page.

Against the same calendar day in earlier years of the file, 72.2% is higher than 32 of 93 earlier October 19 values and lower than 61. The earliest October 19 value in the file is from 1933.

Source used for the statewide figure: statewide.csv as fetched from TWDB during this build on 2026-10-19. Source used for the table: recent-conditions.csv as fetched from TWDB during this build on 2026-10-19.

The table

Every reservoir in the TWDB recent conditions file

The table lists all 122 reservoirs in the file. Every reading in the table is dated 2026-10-19, within 7 days of this build. 2 rows have no published percent full and show "not published", not zero.

122 of 122 reservoirs shown, sorted by percent full, highest first

No reservoir matches that filter.

Texas shares Amistad and Falcon with Mexico, Caddo and Toledo Bend with Louisiana, and Texoma with Oklahoma. For these reservoirs TWDB bases percent full on the Texas share, not on the whole lake. The file also lists Elephant Butte Lake, which is in New Mexico. TWDB notes that it supplies part of the water for El Paso when water is available.

How we know

Method and limits

The figures on this page come from two TWDB files, statewide.csv and recent-conditions.csv. The page reads them when it is built. If a file does not load within 45 seconds or does not parse, the page uses a saved copy and says so above.

TWDB defines percent full as 100 times conservation storage divided by conservation capacity. Conservation storage is reservoir storage minus dead pool capacity, and TWDB caps it at conservation capacity.

The rank compares percent full only, not storage volume, because conservation capacity in the file changes over the decades. The first row of the file, dated 1933-07-01, has a conservation capacity of 90,630 acre-feet. The latest row has 31,531,332 acre-feet.

This page shows percent full only. It does not compare lake elevations between reservoirs or between agencies.

TWDB calls its reservoir data best estimates and gives no warranty for them. A percent full is not a statement about boat ramps, safety or drought. Confirm with the lake operator before you travel.