Purdue engineering just published the profile for the 2025 incoming class:
GPA (unweighted) Average : 3.85
ACT Composite: Average : 31.4
SAT Composite: Average : 1409
Acceptance rate - 34%
Purdue engineering will also expect to see the highest rigor in math and physics that was available to you at your high school and will look closely at those grades.
All engineers start in first year engineering and then transition to their majors second semester of sophomore year. Aero is one of the more competitive majors and you will need a 3.2 GPA in your STEM classes to transition to the major.
Be sure to make sure to meet the early admission deadline since the majority of the class is filled in EA.
Purdue should be in your “reach” category. I’d say the same for UMD, UIUC.
I will let other posters more familiar with your other schools to chime in about them.