I always had a terrible time finding women's hiking shoes in wide width, especially at a good price and somewhere I can try them on. (No problem if you're willing to buy them online, without trying them on, and pay three figures for them.) Wide width women's shoes are not too easy to find in any kind of shoe, in fact.
But my feet aren't that long, and finally a friend made a suggestion that worked well for me: boy's hiking boots! Boys' sizes extend into the ranges worn by most women. I wear a six and a half wide, myself, which translates into about a four and a half in boys' sizes depending on the manufacturer.
Why boys'? Because boys' and men's shoes come in D width standard. But men's shoes are too big for me. No more hunting for women's wide widths, at least not for hiking boots!