For cities, the resurgent interest in downtown living has long been attributed to aging boomers—those born roughly between 1945 and 1964, an estimated 80 million as well, many of whom have already become empty-nesters and sold the house in the suburbs and “right-sized” to a condo near the symphony and fabulous bistros. Another significant segment of growing urban populations, of course, are the young professionals and what Richard Florida calls the “creative class.”

Millennials are something else again. Characterized, fairly or not, as competitive and driven, entitled and narcissistic, thoroughly technology-savvy, and more practical than ideological, they are finding their way in the world, and making the time-honored calibration of professional career and preferred place of residence.

Two public opinion polls came out in the last month suggesting the kinds of places Millennials like. Spoiler alert: it’s Boston, New York, San Francisco, and Chicago, as well as communities such as—I’m inclined to say once again, of course—Boulder and Austin. The key characteristics seem to be walkability, good schools and parks, and the availability of multiple transportation options.

The first survey was released by The Rockefeller Foundationand Transportation for America, the arm of Smart Growth America that focuses on transportation as the key element of land use.