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By Aili McConnon

Where you live is among the most important decisions you’ll ever make argues Richard Florida, author of Who’s Your City? Young singles between the ages of 20 and 29 are looking for a few key ingredients: cities with diverse job opportunities, an abundance of potential life partners, and many universities.

The following rankings were developed by Richard Florida and Kevin Stolarick at the Martin Prosperity Institute and are based on more than thirty weighted variables in five categories: the share of a population at the young and single life stage, economic strength; education levels and safety; economic growth; and local amenities. All 363 metropolitan areas in the U.S. were ranked.