[hudkina]

Dallas isn't as "bad" as Houston as far as having largely undeveloped land. If you consider that there was 617,000 people in the 140 sq. mi. core, that leaves 572,000 people in the remaining 202 sq. mi. That's still a density of over 2,800 ppsm, and today that number is probably over 3,000 ppsm.

In fact, I believe Dallas is pretty close to being "built out" in the sense that easily developable land is rapidly disappearing, and it can't annex more land as it is mostly boxed in by its suburbs. In the coming decades, most of the development in the city will have to be of the "urban renewal" sort.