There are probably also some age-cohort demographics at play. As millennials start to have families, the suburban (or small-urban) lifestyle becomes more appea

There are probably also some age-cohort demographics at play. As millennials start to have families, the suburban (or small-urban) lifestyle becomes more appealing. It's a big generation, so they pull the demographics around. Who knows, they might even drag some of their Boomer parents who were living the fun empty-nester-downtown-lifestyle back out of the big metros with them.