State · United States · USGS · BOR · USACE · CDEC
Mississippi
43.6% average fill
Measured
5
Data pending
7
Volume stored
1,590 hm³
Measured capacity
3,649 hm³
Critical
1
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Reservoirs
Sorted by capacitySardis Lake
Updated 2026-06-11
Grenada Lake
Updated 2026-06-11
Enid Lake
Updated 2026-06-11
Arkabutla Lake
criticalUpdated 2026-06-11
Okatibbee Lake
Updated 2026-06-11
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
7 major reservoirs — data sourcing in progress
Storage is monitored by the US Army Corps of Engineers (USACE CWMS), but the live feed is currently stale — we are working to restore it. Known capacities: Amory Lock and Dam (0.0 km³), Fulton Lock and Dam (0.0 km³), GV Montgomery Lock and Dam (0.0 km³), John Rankin Lock and Dam (0.0 km³), Stennis Lock and Dam (0.2 km³), Jamie Whitten Lock and Dam (0.2 km³), Glover Wilkins Lock and Dam (0.0 km³).
Amory Lock and Dam
SourcingFulton Lock and Dam
SourcingGV Montgomery Lock and Dam
SourcingJohn Rankin Lock and Dam
SourcingStennis Lock and Dam
SourcingJamie Whitten Lock and Dam
SourcingGlover Wilkins Lock and Dam
SourcingAbout reservoirs in Mississippi
As of June 11, 2026, the reservoirs we track across Mississippi that report live levels hold roughly 1,590 hm³ of water — about 43.6% of their combined capacity. Taken together, Mississippi's reservoirs are within their normal operating range.
Across the region, 1 reservoir is at critically low levels. Okatibbee Lake is the fullest at 95.2%, while Arkabutla Lake is the lowest at 12.3%.
Over the most recent week on record, 1 reservoir fell across Mississippi.
Storage figures for Mississippi come from USGS · USACE · BOR · CDEC; the most recent reading is from June 11, 2026. Each reservoir below links to its own page with full history and seasonal context.
Mississippi at a glance
- Reservoirs tracked
- 5
- Average fill
- 43.6%
- Water stored
- 1,590 hm³
- Combined capacity
- 3,649 hm³
- At critically low levels
- 1
- Fullest
- Okatibbee Lake (95.2%)
- Lowest
- Arkabutla Lake (12.3%)
- Last updated
- June 11, 2026
Frequently asked questions
How full are reservoirs in Mississippi right now?
As of June 11, 2026, the reservoirs tracked in Mississippi that report live levels are 43.6% full overall, holding about 1,590 hm³ of water.
How many reservoirs are there in Mississippi?
reservoirs.earth tracks 5 reservoirs in Mississippi, with a combined storage capacity of 3,649 hm³.
Which reservoir in Mississippi is the fullest?
Okatibbee Lake is currently the fullest reservoir in Mississippi, at 95.2% of capacity.
Which reservoir in Mississippi is the lowest?
Arkabutla Lake is currently the lowest in Mississippi, at 12.3% of capacity.
Where does the reservoir data for Mississippi come from?
All storage figures for Mississippi come from USGS · USACE · BOR · CDEC, an official source, last updated June 11, 2026.