According to the 2011. census (where the declaration of the religious beliefs was not mandatory) there were 4.284.889 citizens living in Croatia, out of which 86,3% are declared Roman Catholics, 4,4% are Orthodox, and 1,5% are Muslims.
The number of other confessions is less then 1%, while 3,8% stated that they do not belong to any confession.
| Population by religion, census 2011.
| Total population
| Agnostics and not declared
|Not religious||3,8 %|
State Burreau of Statistics