Rio Vista, CA
This paved but undeveloped property is located in the northwest corner of the area called Rio Vista. Just southeast of this is a very nice, very well developed subdivision that seems to be thriving. But this is a huge chunk in the area.
The area in question is but a sliver of the whole city. Yeah, it's a big empty lot, but a "ghost TOWN"? Not really.
California City, CA
This is probably as close to a ghost town as you're going to get. Vast swaths of land have been paved with nothing standing on either side. There is a central community area, but it rapidly dissipates at the edges.