How many lakes and reservoirs in Arizona are tracked here?

11, of which 5 report a current pool-elevation reading. The rest report storage only, or lack a fresh reading and are not published.

Which Arizona lakes report a %-full figure?

None of Arizona's lakes in this dataset currently have a source-provided %-full figure — we show the bare level rather than estimate one.

Where does the data come from?

USGS Water Services and USACE CWMS Data, both public domain. See the methodology page for the exact endpoints and update cadence.

Arizona lake & reservoir water levels

11 lakes tracked · 5 with a current elevation reading · USGS Water Services + USACE CWMS Data

Arizona has 11 lakes and reservoirs tracked here — 5 with a current elevation reading, from USGS Water Services and USACE CWMS Data. Sort the table by level, storage, %-full, or trend, then open any lake for its full elevation-with-datum, trend sparkline, storage, and source-and-vintage stamp. Figures are provisional readings for reference — not for navigation or safety decisions.

Statewide totals Arizona · USGS + USACE

Lakes tracked: 11
With elevation reading: 5
With %-full figure: 0

All Arizona lakes

Every lake tracked in Arizona. Click a column heading to sort, or filter by name. Elevation lakes are listed before storage-only lakes; a missing figure always shows "not reported," never an estimate.

Filter lakes

Arizona lakes, elevation lakes first, by name.
		Datum			Trend
Alamo Dam	1,101.07	NGVD29	68,514	—	↓Falling
Lake Powell	3,523.90	NGVD29	—	—	↓Falling
Painted Rock Dam	535.02	NGVD29	7	—	→Steady
Tat Momolikat Dam	1,493.73	NGVD29	1,654	—	→Steady
Whitlow Ranch Dam	2,065.21	NGVD29	6	—	→Steady
Bartlett Reservoir	—	—	127,800	—	—
Cragin Dam Reservoir	—	—	8,291	—	—
Horseshoe Reservoir	—	—	35,700	—	—
Lake Mohave	—	—	1,696,000	—	—
Lyman Lake	—	—	2,066	—	—
San Carlos Reservoir	—	—	221	—	—

Data: USGS Water Services (waterservices.usgs.gov) and USACE CWMS Data (cwms-data.usace.army.mil), retrieved 2026-07-14. Both public domain (a work of the U.S. Government, 17 U.S.C. §105).

Frequently asked questions

How many lakes and reservoirs in Arizona are tracked here?: 11, of which 5 report a current pool-elevation reading. The rest report storage only, or lack a fresh reading and are not published.
Which Arizona lakes report a %-full figure?: None of Arizona's lakes in this dataset currently have a source-provided %-full figure — we show the bare level rather than estimate one.
Where does the data come from?: USGS Water Services and USACE CWMS Data, both public domain. See the methodology page for the exact endpoints and update cadence.

Explore

Read the methodology behind these figures, or search all lakes nationally from the home page.