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 Missouri

As of July 30, 2026, the reservoirs we track across Missouri that report live levels hold roughly 2,382 hm³ of water — about 49.2% of their combined capacity. Taken together, Missouri's reservoirs are within their normal operating range.

Across the region, 1 reservoir is at critically low levels and 1 is low. Stockton Dam & Reservoir is the fullest at 105.0%, while Wappapello Pool is the lowest at 9.9%.

Storage figures for Missouri 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.

Missouri at a glance

Reservoirs tracked: 7
Average fill: 49.2%
Water stored: 2,382 hm³
Combined capacity: 4,840 hm³
At critically low levels: 1
Fullest: Stockton Dam & Reservoir (105.0%)
Lowest: Wappapello Pool (9.9%)
Last updated: July 30, 2026

Frequently asked questions

How full are reservoirs in Missouri right now?

As of July 30, 2026, the reservoirs tracked in Missouri that report live levels are 49.2% full overall, holding about 2,382 hm³ of water.

How many reservoirs are there in Missouri?

reservoirs.earth tracks 7 reservoirs in Missouri, with a combined storage capacity of 4,840 hm³.

Which reservoir in Missouri is the fullest?

Stockton Dam & Reservoir is currently the fullest reservoir in Missouri, at 105.0% of capacity.

Which reservoir in Missouri is the lowest?

Wappapello Pool is currently the lowest in Missouri, at 9.9% of capacity.

Where does the reservoir data for Missouri come from?

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

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