“Compared to the general population,” the 7 percent of Americans who identify as libertarian (plus an additional 15 percent with libertarian leanings) “are significantly more likely to be non-Hispanic white, male, and young. Nearly all libertarians are non-Hispanic whites (94%), more than two-thirds (68%) are men, and more than 6-in-10 (62%) are under the age of 50.”

https://newrepublic.com/article/115410/why-arent-there-more-female-libertarians