A potential problem with U.of Puget Sound is that they have a School of Music with a BM degree. Sometimes that means the non-music majors have fewer or lesser opportunities in terms of teachers and performances. Sometimes not, but it is worth checking out. https://www.pugetsound.edu/academics/departments-and-programs/undergraduate/music/at-a-glance/ It IS a liberal arts environment. There IS a minor in music.
I see a couple of jazz courses, one history class that mentions blues, and a few jazz orchestra or ensemble entries. Almost all schools will have extracurricular jazz. Puget Sound;s curriculum is mostly traditional classical though.
For purposes of contrast, Lewis and Clark is a liberal arts college with a BA program in their music department (as opposed to school of music). https://college.lclark.edu/departments/music/ The linked page mentions jazz musicians right away along with a diverse set of interests. This would have 1/4=1/3 classes in music for a music major as opposed to the 2/3-3/4 for a BM. Since there is no BM program, the best opportunities would be available to all students in terms of performance, I would think.
These are West Coast schools obviously but there are numerous possibilities in all parts of the country. Urban or near urban might be best but there might be exceptions to that too.