Of course, looking at the latest film, it seemed to be almost totally humancentric... (not quite as bad as a Terra Prime party rally but even so). Of course, it is an alternate reality or might just have been low on alien cadets during Kirk's graduating year.
We saw more aliens in Starfleet in this one movie than we saw in all three seasons of TOS. I think Spock was the only nonhuman we ever actually saw in a Starfleet uniform in TOS proper; the Tellarites, Andorians, other Vulcans, etc. that we saw were always civilians. We heard about the Vulcan crew of
Intrepid, but they were segregated. It wasn't until TAS and then the movies that we saw other alien Starfleet personnel.
In the movie, on the other hand, we see a number of aliens in Starfleet: K'Bentayr (the exotic alien on the
Kelvin bridge), the big-eyed doctor who delivers baby Jim Kirk, Gaila (the Orion woman), Spock, several nonhumans in the audience at the assembly and in the hangar afterward, an alien crewwoman on the
Enterprise bridge, Keenser on Delta Vega, and probably several other extras.