Reservoirs.EARTH

← United States

State · United States · USGS · BOR · USACE · CDEC

Oklahoma

77.3% average fill

Measured

56

Data pending

2

Volume stored

15,297 hm³

Measured capacity

19,787 hm³

Low level

6

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Reservoirs

Sorted by capacity

Eufaula Lake

95.3%2,720 hm³View →

Updated 2026-07-30

Lake O' the Cherokees at Langley, OK

85.8%1,726 hm³View →

Updated 2026-07-29

Pensacola (Grand Lake)

85.9%1,727 hm³View →

Updated 2026-07-30

Oologah Lake

62.5%789 hm³View →

Updated 2026-07-30

Broken Bow Lake

99.5%1,126 hm³View →

Updated 2026-07-30

Keystone Lake

47.8%521 hm³View →

Updated 2026-07-30

Ft. Gibson Lake

44.2%446 hm³View →

Updated 2026-07-30

Kaw Lake

49.9%491 hm³View →

Updated 2026-07-30

Tenkiller Lake

104.8%846 hm³View →

Updated 2026-07-30

RS Kerr LD15

70.3%456 hm³View →

Updated 2026-07-30

Lake Hudson near Locust Grove, OK

52.6%259 hm³View →

Updated 2026-07-29

Skiatook Lake

98.0%401 hm³View →

Updated 2026-07-30

Lake Hudson

67.0%258 hm³View →

Updated 2026-07-30

Sardis Lake

96.7%327 hm³View →

Updated 2026-07-30

Waurika Lake

98.3%231 hm³View →

Updated 2026-07-30

Webbers Falls LD16

63.5%133 hm³View →

Updated 2026-07-30

Foss Lake

90.4%188 hm³View →

Updated 2026-07-30

Foss Reservoir and Dam

90.2%188 hm³View →

Updated 2026-07-28

Hugo Lake

86.7%170 hm³View →

Updated 2026-07-30

Lake Altus at Lugert, OK

26.5%44 hm³View →

Updated 2026-07-29

Altus Lake

26.5%44 hm³View →

Updated 2026-07-30

Wister Lake

42.2%65 hm³View →

Updated 2026-07-30

Lake Thunderbird

84.3%124 hm³View →

Updated 2026-07-30

Lake Thunderbird and Norman Dam

84.6%125 hm³View →

Updated 2026-07-28

McGee Creek Reservoir near Farris, OK

96.6%135 hm³View →

Updated 2026-07-29

Mcgee Creek Reservoir and Dam

96.7%135 hm³View →

Updated 2026-07-28

Canton Lake

93.8%129 hm³View →

Updated 2026-07-30

Copan Lake

33.3%45 hm³View →

Updated 2026-07-30

Atoka Reservoir near Stringtown, OK

102.4%138 hm³View →

Updated 2026-07-29

Arbuckle Lake

68.2%92 hm³View →

Updated 2026-07-30

Lake of the Arbuckles and Arbuckle Dam

68.0%91 hm³View →

Updated 2026-07-28

Stanley Draper Lake near Oklahoma City, OK

89.3%110 hm³View →

Updated 2026-07-29

Tom Steed Lake

69.4%84 hm³View →

Updated 2026-07-30

Tom Steed Reservoir and Mountain Park Dam

69.6%84 hm³View →

Updated 2026-07-28

Pine Creek Lake

47.3%50 hm³View →

Updated 2026-07-30

Ft. Cobb Lake

83.7%83 hm³View →

Updated 2026-07-30

Fort Cobb Reservoir and Dam

83.8%83 hm³View →

Updated 2026-07-28

Lake Eucha near Eucha, OK

83.6%82 hm³View →

Updated 2026-07-29

Hulah Lake

23.2%23 hm³View →

Updated 2026-07-30

Lake Hefner at Oklahoma City, OK

88.5%81 hm³View →

Updated 2026-07-29

Lake Ellsworth near Elgin, OK

34.7%25 hm³View →

Updated 2026-07-29

Lake Lawtonka near Lawton, OK

84.1%57 hm³View →

Updated 2026-07-29

Salina Pumpback

99.6%59 hm³View →

Updated 2026-07-30

Spavinaw Lake at Spavinaw, OK

69.4%33 hm³View →

Updated 2026-07-29

W.D. Mayo LD14

96.4%42 hm³View →

Updated 2026-07-30

Shawnee Reservoir at Shawnee, OK

73.1%31 hm³View →

Updated 2026-07-29

Lake Fuqua near Duncan, OK

62.6%26 hm³View →

Updated 2026-07-29

Great Salt Plains Lake

80.6%31 hm³View →

Updated 2026-07-30

Arcadia Lake

100.5%34 hm³View →

Updated 2026-07-30

Newt Graham LD18

76.5%22 hm³View →

Updated 2026-07-30

Chouteau LD17

58.1%17 hm³View →

Updated 2026-07-30

Lake Humphreys near Duncan, OK

58.0%14 hm³View →

Updated 2026-07-29

Birch Lake

94.3%22 hm³View →

Updated 2026-07-30

Heyburn Lake

35.4%7 hm³View →

Updated 2026-07-30

Lake Overholser near Oklahoma City, OK

82.2%15 hm³View →

Updated 2026-07-29

Ft. Supply Lake

89.2%15 hm³View →

Updated 2026-07-30

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.

Major reservoirs — data pending

⏳

2 major reservoirs — data sourcing in progress

Storage is monitored by the US Geological Survey (USGS NWIS) / the US Bureau of Reclamation (BOR RISE), but the live feed is currently stale — we are working to restore it. Known capacities: Lake Frederick nr Frederick, OK (0.0 km³), Lake Altus and Altus Dam (0.2 km³).

Lake Frederick nr Frederick, OK

Capacity: 14 hm³⏳ Pending

Lake Altus and Altus Dam

Capacity: 166 hm³⏳ Pending

About reservoirs in Oklahoma

As of July 30, 2026, the reservoirs we track across Oklahoma that report live levels hold roughly 15,297 hm³ of water — about 77.3% of their combined capacity. Taken together, Oklahoma's reservoirs are within their normal operating range.

Across the region, 6 are low. Tenkiller Lake is the fullest at 104.8%, while Hulah Lake is the lowest at 23.2%.

Storage figures for Oklahoma come from USGS · USACE · BOR · CDEC; the most recent reading is from July 30, 2026. Each reservoir below links to its own page with full history and seasonal context.

Oklahoma at a glance

Reservoirs tracked: 56
Average fill: 77.3%
Water stored: 15,297 hm³
Combined capacity: 19,787 hm³
Fullest: Tenkiller Lake (104.8%)
Lowest: Hulah Lake (23.2%)
Last updated: July 30, 2026

Frequently asked questions

How full are reservoirs in Oklahoma right now?

As of July 30, 2026, the reservoirs tracked in Oklahoma that report live levels are 77.3% full overall, holding about 15,297 hm³ of water.

How many reservoirs are there in Oklahoma?

reservoirs.earth tracks 56 reservoirs in Oklahoma, with a combined storage capacity of 19,787 hm³.

Which reservoir in Oklahoma is the fullest?

Tenkiller Lake is currently the fullest reservoir in Oklahoma, at 104.8% of capacity.

Which reservoir in Oklahoma is the lowest?

Hulah Lake is currently the lowest in Oklahoma, at 23.2% of capacity.

Where does the reservoir data for Oklahoma come from?

All storage figures for Oklahoma come from USGS · USACE · BOR · CDEC, an official source, last updated July 30, 2026.

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