Apparently the English answer was originally given as "in the west coast". See? They do fix things.
I have seen that word in the country "Côte d'Ivoire". I thought « côte » means side?
(Yeah, I compared it to the fact that it is on the side of Africa)
Cote d'Ivoire is Ivory Coast in English, but I had the same question. Using Google Translate, I found the difference is literally an accent.
West Side = Côté Ouest; West Coast = Côte Ouest