A recent survey conducted by Pew Research finds that 91% of American adults now own a cellphone. This is up from only 65% at the end of 2004.
Women are less likely to own cellphones than men, and senior citizens are significantly less likely to own cellphones than their grandchildren. The less educated, lower income, and more rural populations also reduced the survey average.
There are differences in cellphone ownership between races, but the spreads are small and hardly statistically significant given the sample size.