Which denominations primarily use the King James Version of the Bible?
I did a search on Google and could not find anything reliable.
It's really not a denominational issue, per se, but a doctrinal issue or a simple preference.
The King James Only movement are people and churches that believe that the King James version is the only one to use. They have various reasons for this.
James White has broken it down into five primary reasons for sticking with the KJV:
Ultimately, it's not a denominational thing, but either a doctrinal issue (that extends beyond denominational decrees) or a preference.