From the March 6, 2017, Wilmington (NC) Star-News "No surprises -- Fort Fisher popular with North Carolina visitors" by Tim Buckland.
According to the annual list compiled by the Carolina Publishing and Associates. for the year 2016, Fort Fisher State Historic Site ranked #2 in the state with 830,136 visitors. The #1 site was the North Carolina Museum of Natural Science with 937,341.
Other high-ranking Wilmington area sites were the N.C. Aquarium at Fort Fisher with 472,471 (which charges admission and the highest of the state's other two aquariums) and the Battleship North Carolina at #21 (also charges admission).
The other Civil War site was Fort Macon State Historic Park at #3 with 802,706.
Of Course, It Is My Belief That Many of Fort Fisher's Visitors Are There Because of the State Recreation Area at Fort Fisher. --Old BRunner