Emerald Isle is a town in Carteret County, North Carolina, United States. It is part of the Crystal Coast and is located entirely on Bogue Banks. The population was 3,847 at the 2020 census, but as many as 50,000 tourists each week inhabit the area during the summer season, filling up vacant rental properties that do not count toward official census results.

Carteret County is a county located in the U.S. state of North Carolina. As of the 2020 census, the population was 67,686. Its county seat is Beaufort. The county was created in 1722 as Carteret Precinct and gained county status in 1739. It was named for Sir George Carteret, one of the 17th century English Lords Proprietor, or for his descendant and heir John Carteret, 2nd Earl Granville.