Our neighborhood is pretty much in the forest, most of the houses are set way back from the road, in the woods. But it still used to be a really social place, where all the kids just wandered from sunrise to sunset between the houses. We played in the woods all day long, dug "holes to China" in each of the dirt driveways, etc. Most of the houses had at least one adult home during the day, and we had set boundries that probably gave us over a half mile to just play and roam. Birthdays, holidays, and just random times were turned into big celebrations, complete with giant pool parties, barbeques, and rented tents. If we were out taking a walk and someone drove by that knew us they'd pull over and we'd talk for half an hour. The parents were just as close as the kids.
Sometime around the time my parents split up 9 years ago, the neighbors became less social in general. All the parents still look out for each other's kids, and do whatever they can to help whenever someone goes into the hospital or is going through some tough times, but it's not even close to the same. There are adults that won't talk to each other, and as a result all of our friendships have changed. I haven't hung out with my neighbor friends outside of school in years because things are just different now. It really stinks. The adults really ruined it for everyone.
That being said, there's a little road off of my road, about 30 seconds up the street from my house. We've gotten to know many of those people, but it's just not anything like what our neighborhood used to be.