> But, in my experience, people living in rural areas rely on their immediate neighbors for more than those living in larger developments. This is conducive to the development of a strong local culture, and outsiders who move in expecting the mass media American culture will likely not feel welcome.

This might be true for some people in large cities, especially the wealthier and the transplants from other places.

However, poor people in cities have a huge sense of community. They rely on their community a ton, and everyone works together to survive. The neighborhood is the community, and it is much like a close knit rural community, only compacted into a smaller city neighborhood.