About a decade ago, Madison was a popular girl’s name—probably because it was the name of a character in some TV show or movie. To me, it sounds like a boy’s name.
Madison became popular after the movie “Splash” with Daryl Hannah, in which she got the name “Madison” from a street sign for Madison Avenue. She was a mermaid in that movie who came on land and didn’t have a human name as I recall.
Amazing how names pop up in our culture.