I reckon there are several people interested in PostgreSQL in the UK and I've met many of them in the Sussex area.
I'm quite new to the Meetup platform so I still need to learn how to use it correctly. However, anybody is absolutely welcome to help to organise a PostgreSQL community in the area.
The link is here. http://www.meetup.com/Brighton-PostgreSQL-Meetup/
I've already scheduled a PostgreSQL beer, an informal chit chat about our database of choice and the future of the community.
Save the date,
Friday, August 14, 2015 6:30 PM.