Getting into the grad school or undergrad? I went to Loyola U Chicago for undergrad with around a 3.8 hs GPA, 29 ACT. College I had a 3.75 GPA so I graduated Magna Cum Laude, and am a member of like 4 honors societies - which probably helped getting into grad school.
I'd check the SLU home and Madrid website to see what their requirements are; I'd think for hs it's probably closer to 24-26 for an average ACT, not sure about the GPA. If you're dying to go, make sure your personal statement signifies that, and be in contact with the school - that's probably the most important thing.
Good luck!
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