Wichita has a company that "buys" (don't know what their arrangement is) the zoo's doo. They also charge people to dump limbs and non-CCA wood. I don't know if they get grass clippings or not, but they make compost in a huge way. They have several cat hi-loaders, and giant tub grinders, for mixing the mountains of stuff. They segregate their piles, and load out of the cured one.
Last year it was $30/yard, loaded on your truck/trailer. They also have contract haulers that will haul it for you. And they have a monster truck that can blow compost on your yard. They can add to it: grass seed, fertilizer, etc. Parts sold separately.
This should give you an idea of what's there in our area.
ron