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How big is the Roman Catholic church?

Answer:
Very big. It consists of six groups (not includind the eastern orthodox section)
Catholic church has a number almost 1.1 billion.

There are no exact figures but the Catholic Church has about 1.2 billion members.

Roman Catholic Answer

The last year for which there are completed statistics for the world-wide Catholic Church was 2008, at that time there were 1.166 billion Catholics in the world. For a complete run-down, see the link below:
Contributor: PiusX
First answer by ID1651498970. Last edit by PiusX. Contributor trust: 134 [recommend contributor recommended]. Question popularity: 5 [recommend question].