Would you have guessed that the San Francisco has the highest concentration of smartphone owners in the U.S. or that 12% of smartphone users access social media in restaurants?

Read on for more surprising facts and figures on local online marketing in the U.S…

• 18% of smartphone app downloaders used the Twitter app.
• 5% used the Yelp app.
• 5% used the Foursquare app.
• 39% used the Google Maps app.
• 58% used the Facebook app.
• Portland, OR has the highest rate of cross-platform behavior among adults 18-34.
• San Francisco has the highest concentration of smartphone owners in the U.S.
• 98% of U.S. consumers access social media at home.
• 27% of U.S. consumers access social media at work.
• 12% of U.S. consumers access social media in the car.
• 12% of U.S. consumers access social media in restaurants.
• 8% of U.S. consumers access social media in airports.
• 7% of U.S. consumers access social media at school.
• 45% of local deal visitors are very likely to recommend the daily deal site.
• Visits to coupon/rewards sites are up 11% since 2009.

Do any of these statistics surprise you?

Check out the stats on Social and Mobile marketing to U.S. consumers for more interesting facts and figures.