Who uses text messaging?

It may come as no surprise that young adults, between the ages of 18 and 24, use text messaging more than any other demographic group.  Another point of reference, non-whites, especially African Americans, text more than other ethnic groups. And it used to be that the lower the education and income level, the more these groups relied on text messaging. Now the shift is changing, more and more businesses are discovering that when the traditional modes of marketing and social media arteries are clogged, it is text messaging that is breaking through the bottleneck and instantly reaching customers. (Pew Internet: Americans and Text Messaging) –KK