Now the clear choice is Wonder Woman who gets searched in 31 of the 50 states, including my home state, Connecticut as well as New York State, and most of the Midwestern US. You have those big screen movies w/Gal Gadot to thank for that but also reruns of the Lynda Carter TV show on the digital network Heroes and Icons..
The #2 choice is a shocker...it's not Supergirl, but Starfire with searches in only 6 states.
As for our Kara, she is the choice...OF NEW JERSEY. The press release from Privacy Journal found...
"Supergirl's leading position in New Jersey might reflect the state's strong comic book culture and historical connection to Superman's fictional hometown of Metropolis, which is often depicted as being across the bay from New Jersey."
Namely New York City, especially in North Jersey, and parts of Central NJ. South Jersey leans to the Philadelphia area, wherein WW is popular in Pennsylvania.
Power Girl is popular in California, which suggests the "state's appreciation for more complex superhero narratives." This despite the Supergirl TV show was set in National City, CA, made to look like LA, but the real Nat City is a suburb of San Diego.
The study also applies to heroines from what I have dubbed "the M Company." WAIT TILL YOU SEE WHICH M COMPANY SUPERHEROINES ARE SUPPORTED IN MAINE AND MASSACHUSETTS.