Arden Arcade isn't some kind of pastoral setting with more cows than people. It's been fully built-out for over 60 years. In round figures, it has 100,000 people packed in at 6000 people per square mile. In 2009, when told the community remained unincorporated as though it was still a rural area, a person who grew up in Arden Arcade and moved away in the 1970s said, "That's ridiculous. It's old, it's established and they sell cars." The pages below provide some data-driven reality checks.