Storage from official US gauges (USGS, USACE, Bureau of Reclamation, CDEC). Fill % uses design capacity from the National Inventory of Dams where available; a few sites without a match fall back to the 5-year maximum.

About reservoirs in Nevada

As of July 29, 2026, the reservoirs we track across Nevada that report live levels hold roughly 10,433 hm³ of water — about 28.1% of their combined capacity. Taken together, Nevada's reservoirs are low.

Across the region, 2 are low. WALKER LAKE NR HAWTHORNE, NV is the fullest at 83.7%, while Lake Mead Hoover Dam and Powerplant is the lowest at 25.0%.

Storage figures for Nevada come from USGS · USACE · BOR · CDEC; the most recent reading is from July 29, 2026. Each reservoir below links to its own page with full history and seasonal context.

Nevada at a glance

Reservoirs tracked: 7
Average fill: 28.1%
Water stored: 10,433 hm³
Combined capacity: 37,160 hm³
Fullest: WALKER LAKE NR HAWTHORNE, NV (83.7%)
Lowest: Lake Mead Hoover Dam and Powerplant (25.0%)
Last updated: July 29, 2026

Frequently asked questions

How full are reservoirs in Nevada right now?

As of July 29, 2026, the reservoirs tracked in Nevada that report live levels are 28.1% full overall, holding about 10,433 hm³ of water.

How many reservoirs are there in Nevada?

reservoirs.earth tracks 7 reservoirs in Nevada, with a combined storage capacity of 37,160 hm³.

Which reservoir in Nevada is the fullest?

WALKER LAKE NR HAWTHORNE, NV is currently the fullest reservoir in Nevada, at 83.7% of capacity.

Which reservoir in Nevada is the lowest?

Lake Mead Hoover Dam and Powerplant is currently the lowest in Nevada, at 25.0% of capacity.

Where does the reservoir data for Nevada come from?

All storage figures for Nevada come from USGS · USACE · BOR · CDEC, an official source, last updated July 29, 2026.

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