Lake Marion (South Carolina), SC

As of 2026-10-12, Lake Marion (South Carolina) sits at 72.83 ft, which is low for this time of year. Over the past 30 days the level has fallen 0.71 ft.

The most recent reading at Lake Marion (South Carolina) is 72.83 ft (2026-10-12), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

The highest level for Lake Marion (South Carolina) in our records is 76.98 ft on 2016-01-04. The lowest is 66.76 ft on 2007-12-24. Our record covers about 28 years of readings.

Compared with every October in our records, the current level is higher than 17% of them, which we classify as low for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Lake Marion (South Carolina) has fallen 0.71 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

Lake Marion (South Carolina) is -1.93 ft compared with this date last year (72.83 ft today). The full-history chart above covers 28 years, with a record high of 76.98 ft and a record low of 66.76 ft.