As far as I know US collegiate baseball may be bigger at some schools but is mostly a marginal spectator thing overall. Hockey is certainly very regional but, in my experience, is a fairly big thing in the North especially at schools with good teams. In fact, I went to a school where hockey almost certainly had larger paid crowds than basketball.
There are 4x as many teams in the NCAA Div I national championships for basketball than there are for hockey.
That being said, hockey is extremely popular at some schools; Gopher hockey is more popular (with both students and alumni) than Gopher basketball at the University of Minnesota.
I always went to northern schools so my perception is probably skewed. Played intramurals in grad school with someone who went to Minnesota. I've just never gone anywhere that basketball was a particularly big deal (and was never into it myself). Hockey was the thing for my grad school crowds. But obviously college basketball is a big deal more broadly. Final four and all that.
6 of the 64 schools with Div I NCAA hockey teams are located in my state, and 5 of them are small state or private schools. Massachusetts has 10, New York has 11, Michigan has 7.
Over half of the Div I hockey teams are in the four states mentioned above.
UVA baseball lost >$3 million in 2023 off of $1.7 million revenue. UVA football (a middling program) meanwhile is making a profit of over $20 million.
Baseball is nowhere close to football. I'd be surprised if college baseball was making more revenue than minor league baseball.