How many lakes and reservoirs in South Carolina are tracked here?

12, of which 12 report a current pool-elevation reading. The rest report storage only, or lack a fresh reading and are not published.

Which South Carolina lakes report a %-full figure?

None of South Carolina'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.

South Carolina lake & reservoir water levels

12 lakes tracked · 12 with a current elevation reading · USGS Water Services + USACE CWMS Data

South Carolina has 12 lakes and reservoirs tracked here — 12 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 South Carolina · USGS + USACE

Lakes tracked: 12
With elevation reading: 12
With %-full figure: 0

All South Carolina lakes

Every lake tracked in South Carolina. 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

South Carolina lakes, elevation lakes first, by name.
		Datum			Trend
Lake Blalock	708.64	NAVD88	—	—	↓Falling
Lake Greenwood	438.46	NAVD88	—	—	↓Falling
Lake Marion	73.41	NAVD88	—	—	↓Falling
Lake Moultrie	73.25	NAVD88	—	—	↓Falling
Lake Moultrie	73.20	NAVD88	—	—	↓Falling
Lake Murray	355.74	NAVD88	—	—	↓Falling
Lake William C. Bowen	813.66	NAVD88	—	—	↓Falling
Monticello Reservoir	423.18	NAVD88	—	—	↑Rising
Neal Shoals Reservoir	331.08	NAVD88	—	—	→Steady
Ninetynine Island Reservoir	510.65	NAVD88	—	—	↑Rising
Savannah River	185.68	NAVD88	—	—	↑Rising
Tyger Lake	710.91	NAVD88	—	—	↓Falling

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 South Carolina are tracked here?: 12, of which 12 report a current pool-elevation reading. The rest report storage only, or lack a fresh reading and are not published.
Which South Carolina lakes report a %-full figure?: None of South Carolina'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.