Which makes more money: an interior decorator or an interior designer?

Yes, as per Kathy--it depends on where, who and how well....where you are, who you are & have as clients and how well you do it. An interior designer can do more & has more training and has taken rigorous testing but some celebrity "designers" have no training at all in anything, or started out as jewelry designers, fashion designers etc. The range of $ is huge--depending on if you are self-employed, do commercial or hospitality (hotels, restaurants etc); have high-end clients etc etc. I am probably the cheapest designer in Los Angeles (I charge $40-50/hr) but I just love making spaces pretty & nice & so I want anyone to afford me. Where I used to work--the designers charged $250.00/hr

put it this way... an interior can be a decorator, whenever he/she chooses. a decorator cant.

interior designer makes more than decorator ... but the trick is as decorator you can work part time with party organizer .. make money just for one show .. while interior designer needs lots of time to get things done...