Case is generous with merit scholarships for top students. However, their CS program is not one of the best.
I’m surprised nobody mentioned Harvey Mudd yet. High achieving student who plans to do STEM but prefers an LAC environment. It would be a reach but Claremont consortium schools are a reach for anyone and OP’s son is in range with his GPA and standardized test scores.
Because the OP was looking for matches and safeties, and Mudd is one of those schools that can never be either of those.
My son got into Harvard and Carnegie Mellon’s CS School, but was waitlisted by Mudd. So no, not a match or safety for anyone.
The problem with finding matches for high achieving students is that so many of the schools a notch below the tippy top schools are still very selective and most have holistic admissions so you can’t count on them at all. Tufts would rather accept an interesting lopsided kid than a top scorer if they don’t perceive a good fit.
@data10, the reason so few schools go to ICPC is that there are regional qualifying competitions. Only top 2-3 teams in each region make it to ICPC – and many schools have multiple teams. One of my sons did ICPC, as both a competitor and as an asst coach.
OP, a CS candidate would learn a lot by participating in USACO – they have excellent, free training curricula and multiple competition levels based on experience. Colleges also count it as a plus in admissions.
I would focus on CS state schools that offer merit $ to great students, in-state especially if cost is an issue. Likely or match schools still need to be affordable for your family. Our flagship (UMD) has a great CS department, which he was willing to attend, which made his process easier.
@Sue22 that is really cool about Bates. Did you attend there?
Reed is definitely a school for deep thinkers. I know of a family with a high level of need whose daughter is there.
@JHS For a while, my daughter was interested in another Claremont college. It’s my recollection that if any Claremont student wanted to doublemajor or minor in something offered at a different Claremont College, I think they could enroll over there and do that. I believe it included Mudd. If indeed that’s true–applicant, please, please doublecheck on this directly with Admissions–maybe apply to Pitzer? Or Scripps for women? Because Claremont McKenna and Pomona are pretty hard to get into as well.
@Picapole, I did attend Bates, and I’m an unabashed advocate, so make sure to do your own research! 
I do think Bates’s new CS program is an interesting opportunity for kids interested in a major, and it will also provide a lot of support for kids who want to get fluent in the kinds of computer skills being used in other fields such as medicine, political science, economics and psychology.
I know this discussion is a few months old, but I have to point out that Penn State did NOT do as well as UCF at the 2017 ACM ICPC World Finals. That would be PERM state, which is Perm State University of Russia. UCF was the highest scoring university from the United States at the world finals of 2017, and this year in 2018 they were North America champions and a bronze medal recipient. It is helpful to have lots of practice problems in your repertoire, but the contest is not really about “memorizing algorithms”. You need to have a creative approach to do well overall.
Also, according to their fact sheet, in last year’s regionals, 49,935 contestants from 3,098 universities in 111 countries on six continents competed at over 530 sites to advance to the World Finals, which ended with roughly 140 teams being represented at that level.
Editing to add that Penn State DID compete in 2016-2017, but came in 15th at their regional, and did NOT move on to worlds. https://icpc.baylor.edu/regionals/finder/east-central-na-2016/standings