Corruption and Religion

Here are the least corrupt countries according to https://en.wikipedia.org/wiki/Corruption_Perceptions_Index (May 2017):

Denmark, New Zealand, Finland, Sweden, Switzerland, Norway, Singapore, Netherlands, Canada, Germany, Luxembourg, UK, Australia, Iceland, Belgium, Hong Kong, Austria, USA, Ireland, Japan.

Importance of Religion by Country

The least religious Countries according to https://en.wikipedia.org/wiki/Importance_of_religion_by_country (May 2017) are:

Sweden, Estonia, Denmark, Norway, Czech Republic, Japan, Hong Kong, UK, Finland, Vietnam, France, Australia, Netherlands, New Zealand, Belgium, Cuba, Bulgaria, Russia, Belarus, Luxembourg

Peace and Religion Statistics

Which countries were estimated to be the most peaceful ones - according to the "Global Peace Index" 2016 ( Source: Wikipedia https://en.wikipedia.org/wiki/Global_Peace_Index - as seen in May 2017):

Iceland, Denmark, Austria, New Zealand, Portugal, Czech Republic, Switzerland, Canada, Japan,  Slovenia, Finland, Ireland, Bhutan, Sweden, Australia, Germany, Norway, Belgium, Hungary, Singapore