The place to be is Bishops Stortford - just down the road and the population consists 99% of aircrew for the various STN based airlines. I'm not sure if this is your cup of tea though, as you'll bump into people you know from work wherever you go. Alternatively, Stansted Mountfitchet, Elsenham, Thaxsted, and Cambridge are within easy reach and a little bit nicer than Stortford.
Go and have a look and see what you think.