I honestly haven't seen either. I live in a fairly rural area, but there is no shortage of Christian churches out here. And I know there are a few kingdom halls around here. But JWs only ever knocked on my door once (in... 2016, I think) and I have not seen any Mormon missionaries at all.
I don't think it's a lack of enthusiasm as much as it is being a bit farther out from the big population centers. After 45 years in New York City, I almost never see a building taller than three stories anymore. Big cities have always been a fertile ground for small groups that proselytize aggressively. Farmlands, less so.