No matter where you live, the pressure to couple up may be intense. Family,friends and others think you should "get out there" and start meeting people. But get out where? Are you living in the best city for people who are single and ready to mingle? U.S. Census data may be one place to start, looking at who's not married in your city. But an even better and more recent barometer would be Facebook, which is where the Wall Street Journal went when looking for people who, over the course of one month, had changed their relationship status from "single" to "in a relationship."  It may surprise you to know that big cities, namely San Francisco and New York, had low rates of people starting relationships. But it can seem overwhelming to narrow down choices from literally thousands of people. So a small-ish town topped the list – Colorado Springs, Colo. Other cities that scored high on coupling were Louisville, Ky., and three Texas cities – El Paso, Fort Worth and San Antonio. The Facebook data found that where thereare a higher percentage of outdoor activities, thereare a higher percentage of men.