New stats as of 6/18/13:
Cell Phone Texting Accident Statistics
Total percentage of people who have sent or received a text message while driving 37%
Total percent of people who text while driving regularly 18%
Total percentage of time spent driving in the wrong lane while texting 10%
Total percentage of people under the age of 18 who admitted to texting while driving 46%
Average amount of time a driver spends not looking at the road while texting 4.6 seconds
Total percentage of respondents who support a ban on text messaging 80%
Total times the amount a truck driver has of getting into an accident while texting opposed to concentrating on driving 23.2
Different website (http://www.textinganddrivingsafety.com/texting-and-driving-stats/) with a graphic (click on it to enlarge):
Another stat-driven website: http://www.distraction.gov/content/get-the-facts/facts-and-statistics.html
As of December 2012, 171.3 billion text messages were sent in the US (includes PR, the Territories, and Guam) every month. (CTIA)
11% of all drivers under the age of 20 involved in fatal crashes were reported as distracted at the time of the crash. This age group has the largest proportion of drivers who were distracted.
For drivers 15-19 years old involved in fatal crashes, 21 percent of the distracted drivers were distracted by the use of cell phones (NHTSA)
At any given daylight moment across America, approximately 660,000 drivers are using cell phones or manipulating electronic devices while driving, a number that has held steady since 2010. (NOPUS)
Engaging in visual-manual subtasks (such as reaching for a phone, dialing and texting) associated with the use of hand-held phones and other portable devices increased the risk of getting into a crash by three times. (VTTI)
Sending or receiving a text takes a driver's eyes from the road for an average of 4.6 seconds, the equivalent-at 55 mph-of driving the length of an entire football field, blind. (VTTI)
Headset cell phone use is not substantially safer than hand-held use. (VTTI)
A quarter of teens respond to a text message once or more every time they drive. 20 percent of teens and 10 percent of parents admit that they have extended, multi-message text conversations while driving. (UMTRI)