Just as many of the details of tznius are considered dat yehudis instead of dat Moshe (women should dress according to the tznius standards of the community in which they live), it makes sense to adopt the levush of your community, if the vast majority dress a certain way, unless you have a specific levush you are already particular about. “Do not separate yourself from the community.” Avos.
I live in a diverse area, but if I lived in an area where everyone dressed in a certain style I would probably do so as well. It’s not that hard to wear a hat (and velvet kippa, or whatever), as long as it doesn’t bother you and your family. Just a thought!
Hatzlacha with your move and finding the right shul for you!