Houston is known for many things: Oil, NASA, urban sprawl and 
business-friendly policies. But the Texas city deserves to be known for something else: coolness.
The Bayou City may not be the first place you associate with being  hip or trendy. But Houston has something many other major cities don’t:  jobs. With the local economy 
humming through the recession, Houston enjoyed 2.6% job growth last year and nearly 50,000 Americans flocked there in response — particularly 
young professionals. In fact, the median age of a Houston resident is a youthful 33.
The result? Over the past decade, the dreary corporate cityscape has  been quietly transforming. Stylish housing developments have popped up  downtown, restaurants have taken up residence in former factories and  art galleries like the 
Station Museum have been inhabiting warehouses.
Combine that with a strong theater scene, world-class museums and a  multicultural, zoning-free mashup of a streetscape and you have the  recipe for the No. 1 spot on Forbes’ list of America’s Coolest Cities To  Live.
Behind the Numbers
“Cool” is defined by Merriam-Webster’s dictionary as “very good;  fashionable.”  Of course what, exactly, is good and fashionable is very  much in the eye of the beholder. We sought to quantify it in terms of  cities, ranking the 65 largest Metropolitan Statistical Areas and  Metropolitan Divisions (areas that include cities and their surrounding  suburbs that are defined by the U.S. Office of 
Management and Budget) based on seven data points weighted evenly.
Sperling’s Best Places  helped us calculate the number of entertainment options per capita in  each metro area. We also ranked the cities based on other recreational  opportunities, including the amount of green space, the cost and number  of outdoor activities like golfing and skiing available, and the number  of pro and college sports teams.
 With the help of Sperling’s we tallied restaurants and bars per  capita, weeding out chain establishments – Applebee’s has less sizzle  than a local chef’s bistro.
We also looked at each city’s cultural composition using Sperling’s  Diversity Index. It measures the likelihood of meeting another person of  a different race or ethnicity. Increased diversity tends to lead to a  larger assortment of interesting shops, restaurants and events.
Using the most recent data from the U.S. Census Bureau, we factored  in median age, favoring places with a large young adult population.
We ranked the cities based on net migration (the number of people who  relocated there in 2011) and also on unemployment rates, since a city’s  offerings are only as good as the amount of people who want and can to  afford to enjoy them. (No one likes to hang out in an empty bar, right?)  We culled this data from the Bureau of Labor Statistics and 
Moody’s Analytics.
 Houston is joined in our top 20 by four other Lone Star metro areas: Dallas ranked fourth; San Antonio, 11th; Fort Worth, 13th; and Austin, 19th. They all boast strong economies, large young adult populations and relatively high levels of cultural diversity.
Second on our list is Washington, D.C. With federal spending strong,  the nation’s capital sailed through the recession with low unemployment  and an influx of newcomers. Many of those newcomers have, like Houston,  been young adults. According to the U.S. Census Bureau, residents in  their 20s and early 30s make up about a third of the metro area’s  population – 23% more than in 2000.
Washington also scored high thanks to its melting pot of a  population, a large selection of local eateries and watering holes, and a  host of activities that range from Smithsonian museums to music  concerts. Washington reportedly hosts more festivals and events than any  other U.S. city, 
according to Destination DC.
Perhaps not surprisingly, many of America’s priciest cities also made  the cut: Los Angeles ranked third, San Francisco came in ninth and New  York took 10th. “Established places like New York … have a  built-in cool crowd,” says Bert Sperling, founder of Sperling’s Best  Places. “They are like adult playgrounds and people go there for good  food and interesting events.”
In general the cities on our list fall into one of two categories:   established (typically wealthier) cities (like New York, Los Angeles,  even D.C.) and up-and-coming places whose low costs of living and/or  strong economies have been attracting artists and young adults who 
can’t afford to live  in the former.  Up-and-coming metro areas that made our list include  D.C.’s neighbor to the north, Baltimore (No. 14), and New York’s  neighbor to the southwest, Philadelphia (No. 15).
“Baltimore is in transition because it has been down and out for a  long time but it’s beginning to come back because it’s affordable,” says  Sperling. “[And] Philadelphia had been forgotten, but now it’s being  referred to as the Sixth Borough.”