I\'m sure this has been answered but I cannot seem to find an answer.
I installed postgresql using Homebrew (brew install postgresql) which installed to /usr/local/Cella
System: MAC OS X 10.9.5
Now (ver. 9.4) this is under the dir called /Library/PostgreSQL
If you go there, open the folder named as the ver. of your PG and then go to the folder data
you will find your DB. This is really a set of many-many-many different both binary and text files (most of those are named with long numbers like "92891
" or so...
Note, to open the data
folder you have to open its properties (right mouse click and select "Get info") and allow you to read this folder.
I wdn't suggest you to open the RW permissions if you aren't familiar with this as any smallest change can affect you whole DB which is would be sad..
Good luck!