It doesn't work that way. Think of an orbit as a circle. It is 360 degrees. Satellites typically need to be at least two degrees apart from each other so that they don't interfere with one another in space, so if you take that 360 degrees and divide it by two for the two-degree orbital separation, you are talking about roughly 180 useful orbital positions.
As you can imagine, they are distributed evenly around the world. But I would say that the space over...there are some portions of the geostationary arc that are more desirable than others, because of the geographic areas they can serve.