I always thought the lower charted singles were more regional hits but not sure if there are as many (if any) regional hits these days or a new singer by an established artist that gets some initial airplay but doesn’t catch on.
There were more regional hits when there were regional record labels. But since all of the music comes from three international conglomerates, and with music being released on international platforms, it's harder to have regional hits. In the country world, there's a song by Megan Moroney called "Tennessee Orange." I really can't see anyone outside of Tennessee liking the song. But then again, that's what people thought about "Chattahoochee" and "Oh Atlanta."