Keep in mind that while these numbers are on gw2guilds.org, not all guilds have listed their guild numbers, most are estimates and not all guilds have registered on that site.
But, from what currently shows:
name of server - number of guilds - number of people (ranked by number of people)
Far Shiverpeaks - 70 - 2607
Jade Quarry - 76 - 2493
Sorrow's Furnace - 50 - 2165
Crystal Desert - 51 - 1979
Gandara - 58 - 1928
Tarnished Coast - 79 - 1278
I wanted to get some kind of handle on how populated CD would be in comparison to other servers. Assuming that the numbers are errored in roughly the same way, CD won't be the most populated server. Of course we don't want to play on in a ghost town, but also don't want the server to be so crowded as bring the poor thing down.
So, I guess what I'm trying to say is that CD is fine with me as well.