Big D,
Consider the academic side of the school in combo with athletics. Most schools triathlon is a club sport, so academics should be very important. If you can use triathlon to help get you into Army or Navy, remember that those schools sponsor each student through their 4 years and in this day and age, there is something to be said about a "free" education. If you end up at Army / Navy, somehow I think triathlon will become very secondary.
It sounds like you are on the East coast and depending on how good of a swimmer you are, take a look at Stanford. Contact the coach, Eric Bean (
eric@beanathlete.com), while you are at it and see how realistic this might be. Excellent coach, team and university...if you can get in (and afford it.)
If that is out of reach Cal Poly SLO probably has a huge club - program in terms of participants but many CA schools have good clubs - UC Santa Barbara and San Diego come to mind and are located where favorable weather allows for longer triaing seasons.
Last, in the past wildflower's olympic distance race used to be the collegiate national championship event and while that may not be the case anymore, there always is a collegiate division. If you can make it out next May for the race, you will have every team and coach on hand to judge for yourself, but chances are that by next May your decision will already be made (if you are a senior in HS.)
Good luck.
Snepper