Sure but it is closed for tours right now because it's the off-season so you need to visit it if you want to go up in it around September it closes at the end of September for the season
Not sure about lighthouse specifically but it's part of national seashore which gets 2 million visitors each year.
If each tour was filled every day it is open not counting the people that don't do the tour. That would mean Over 170,000 visit the light house each year
When I visited Bodie Island for the first time, there were quite a few people there. With it being October, it doesn't seem to be too busy nor crowded. 😊
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