So I was wondering if I could grow a pumpkin in my bucket.

It is the same height as a 5 gallon bucket, however, it's opening is about 2.5 feet in diameter.

Is this enough root space, and enough top space for it to develop a pumpkin?

Thank you

A pumpkin is a squash, a rather large squash. It's fruit bearing vines will run all over. So I am confused, why keep it in a bucket?
It will get more water, produce larger fruit if in the ground in my opinion.

Because I heard that pumpkins grow wild if directly sowed into the ground.

But I already have pumpkin seeds and was really looking forward to growing pumpkins... but I don't want to have a pumpkin patch in my backyard. So in order to control it from growing wildly, I was thinking to grow them in a bucket. Otherwise, I don't know what to do with my pumpkin seeds. And it seems like a loss. I was gonna give them away to family, friends, donate some, and cook some.

*at a loss, not wanting to concede*

Thank you

Its not the roots that grow wild, its the tops. They take an incredible amount of space and each plant will grow 3 - 6 pumpkins, depending upon the size of the pumpkins. Those big ones in Half Moon Bay have leaves the size of garbage can lids and grow one pumpkin per vine.