I would speak with some people who have actually moved there.
Obviously, with a huge number of families you're bound to find SOME friends, right?
Well, not necessarily.
It depends on how serious a Catholic you are yourself -- how anti-world, anti-liberal, etc.
A friend of mine (who agrees with me on most issues -- let's just say he's a great fit for CathInfo) moved to St. Mary's, and he told me how most of the people there have a social "wall" that goes up. They act one way in public, but few of them let their wall down so you can really get to know them.
It comes from being afraid to find out the REAL YOU. So many times, they'd make friends with a family, only to find out they're just like the families they left behind in New York, Los Angeles, or Seattle. So they get gun-shy, and just put up a defensive wall.
My friend told me that after living in St. Mary's for 4 years, he's found THREE families that were not only friend material but managed to open up to him and his family.
Oh, and did I mention that he's very outgoing, and his wife even more so? They are both friendly, social, and extroverted.
Speaking of this man, he also is so social/affable that many worldly people open up to him, thinking he's "one of them". So they invite him to their regular activities, as it were. Let's just say he's been scandalized on countless occasions. In St. Mary's.
So if you're picturing a nirvana of hundreds of serious, well-informed Catholics shunning the world and living Catholicism in their daily lives -- you might want to adjust that image now, or you might be very disappointed.
Ask Elizabeth, who moved to a Sede mecca (Cincinnati, OH) how it worked out for her. Ask if she'd do it again.
Let's put it this way -- there's a Resistance in St. Mary's, but I don't think it measures in the hundreds. It's only a sliver of the population, just like anywhere else. Those are your true, well-informed, serious Catholics who aren't sold-out, invested in, or attached to The World.