ABC-affiliate WSOC said five people, including the baby, had been missing after dozens were rescued from rising water on Thursday morning at the Hiddenite Family Campground in Alexander County.
Another adult's body was found Friday morning.
The campground is approximately 50 miles north of Charlotte.
Floodwaters either covered or swept away the recreational vehicles at the campground, which is next to the South Yadkin River and is home for many of the people caught in the flood. Crews saved 31 people from their vehicles, some of them hanging onto their campers.
Another death was reported nearby from a car accident that occurred due to a bridge outage and high water. The driver was pronounced dead at the scene.
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The Associated Press contributed to this report.