http://grad-schools.usnews.rankings...top-mathematics-programs/rankings/page+5

top (grad) math schools sorted by rank (100+), add your zip to see distance. pretty cool quick tool to get some ideas going.

If you're interested in where PhD's in math went for undergrad (per capita), check out: http://web.reed.edu/ir/phd.html.

odd name....Harvey Mudd. Have you heard of this place? I never have until googling just now.
http://www.hmc.edu/

very off the beaten track...
http://www.etsu.edu/cas/math/
(I know someone with their math masters from etsu)