What is your personal definition of the term?
There is a great site called religioustolerance.org that has many good articles on the subject of religions. Here is little piece on the confusion around the term "christian".
http://www.religioustolerance.org/chr_defn1.htmbrief quote:
Range of definitions of "Christian:"
There are also many distinct definitions of the term "Christian" (pronounced 'kristee`ân). Different people have defined a "Christian" as a person who has:
1. Heard the Gospel in a certain way, and accepted its message, or
2. Become "saved" -- i.e. they have trusted Jesus as Lord and Savior), or
3. Been baptized as an infant, or
4. Gone to church regularly, or
5. Recited and agreed with a specific church creed or creeds, or
6. Simply tried to understand and follow Jesus' teachings, or
7. Led a decent life.
Following these different definitions, the percentage of North American adults who are Christians currently ranges from less than 1% to about 75%.
Within a given denomination or wing of Christianity, there is usually a consensus about who is a Christian, and who is not. However, there is often little agreement among members of different faith groups on a common definition of "Christianity."
and from another part of the site:
http://www.religioustolerance.org/chr_defn.htmbrief quote:
There are also many distinct definitions of the term "Christian" (pronounced 'kristee`ân):
Most liberal Christian denominations, secularists, public opinion pollsters, and this web site define "Christian" very broadly as any person or group who sincerely believes themselves to be Christian. Thus, Fundamentalist and other Evangelical Protestants, Roman Catholics, Eastern Orthodox believers, Presbyterians, Methodists, Episcopalians, United Church members, Mormons, Jehovah's Witnesses, Christian Scientists, etc. are all considered Christian. They total about 75% of the North American adult population.
At the other extreme, many Fundamentalist and other Evangelical Protestants define "Christian" more narrowly to include only those persons with beliefs like their own. Or they might accept as a "Christian" anyone who has been "born again" regardless of their denomination. They might estimate that about 35% of the North American adult population are real Christians.
Different definitions on such a fundamental topic makes dialog and debate among Christian groups very difficult.