One Body Problems

It's hiring season, and we've all heard about two-body problems.

But you may not have heard of the one-body problem:

Is the place a single person takes a job in likely to have enough other single people around to facilitate searching for a partner ? 

I was 'spoken for' before I even finished my Ph.D, and never had to deal with this (rather, I had to work with the more traditional (ha!) two-body problem).