Some of the best programs for math are at HarveyMudd (where your background would not seem that unusual since they have a very, very strong math curriculum that attracts students that could be considered math prodigies ° as a div3 school you could get a boost from fencing), Northwestern (same thing, there’s even a special track there), and Williams (a LAC that’s really strong for math,ie., the 300-level classes you’re taking would be considered 200-level there - check out the curriculum, they meet full need and can be very generous with FA to EFC0 students; it may be the #1 LAC in the country, the Harvard of LACs if you will, and your GPA may not be competitive on its own, but you combine several hooks: fencing, lower income/first gen, under-represented state, “well lopsided” (advanced math), high college GPA, AND have good scores and strong curriculum rigor in addition to everything else - in fact, if you apply ED I’m willing to bet you’d get in.)
Apply to NYU because of the Courant Institute, but once you’ve applied, don’t think about it until you have your financial aid package.
I wonder if UCSB’s CCS could be financially possible since you’re in-state and you sound like the poster child for what they’re looking for?
On your application, highlight your 4.0 College GPA!