Current/Past cadets, if you were admitted with a low High School GPA, what was it?
I'm wondering if it can be made up for in other areas like SAT or letters of recommendations, etc.
I know a guy who got into the USCGA Scholars program with a 2.1 GPA. (Around 85% of people in the scholars program make it into the Academy afterwards)
You can make up for it, but you need to REALLY make up for it. Overcompensate in everything that isn't GPA. My guy managed to get in because he had a 1450 on the SAT, 32 on the ACT, had 365 hours in community service, and got recruited to play football. The sports recruitment was probably one of the most important parts there. If you're a D1 athlete, you might have a chance if you study hard for your SAT and put in effort in your community.
Of course, don't underestimate essays and letters of recommendation. They can turn a good application into a great one, so make sure you're always doing your best to stay in touch with your teachers and coaches. Make sure to contact your admissions officer as well.
Service Academy acceptance rates betray the true difficulty of entrance. Ivy League schools have entrance rates in the single digits because most people who apply are sloppy geeks with 4.0 GPAs and 1600s on the SAT armed with sob stories about how their dad died a veteran of Stonewall or they had no friends in middle school. The Ivy gets to pick their lot from hundreds of those. Everyone who applies to a Service Academy wants to become an academic, athlete, and eventually an officer in their service. The weakest candidates you're probably going against are some AFJROTC kids who did JV track and XC for 4 years, had 1310s on the SAT and were a part of their High School's NHS programs. The strongest candidate you're going up against is a polymath soccer prodigy who's dad earned the Medal of Honor fighting in Kuwait, had a 5.4 weighted GPA throughout high school, a 36 ACT, held a Department of Defense internship from the age of 16, earned a gold Volunteer Service Award with 250 hours of community service as a Master Sergeant in their Civil Air Patrol unit, and went to the summer seminar.
Never look for what 'minimum' you can do. Work hard in everything and find out what you do to stand out and be special- it's not about what you think the school wants from you, it's about why you know you know you belong there.
Edit: A cursory glance says the lowest accepted cadet had a 2.7 GPA and 1170 SAT. Not sure about the credibility of my source, or whether or not they had jaw-dropping athletic performance and a maxed PFE score.