Mappers by Religion

Catholics

 * Java Sea
 * Chris Mapping
 * ThunderBysk
 * Spyro.con ( roman catholic )
 * Flaming Arrow
 * João Mordecai Mapper aka João "like rio" Dinis
 * Gerrard Mapper
 * Antonio Mapper Italy
 * ItalianMapper2
 * NanoByte360

Greek-catholics

 * Emartis

Greek Orthodox with Greek Pagan meterial.

 * Principal Mapping

Orthodox

 * SakhsPro Mapper
 * Percy (IhorPrTV)
 * fantastic mapper
 * Duxy Mapping
 * Dementor Mapping (2/3)
 * Prince Starios
 * The Dark Knight It's Excellent
 * Potato09

Protestants

 * EmprorCheesecakes (EmprorCheeseBritannia)
 * Nick HD Mapping (KingNickIV)
 * Thunder Mapping
 * Devin HD Mapping
 * Miguelhdzb22
 * TheBronyPenguin
 * Mista Chris
 * GeneralGems
 * CoreCode
 * Eric Derpster

Free Christs

 * Philipp Mapping

Lutheran

 * Mapper Freaker
 * Finn Mapper (Evangelical Lutheran)
 * Zenoman Mapping
 * Of Happenings

Mormons

 * Mapmaker024
 * Perrydoesmapping

Deist

 * TL Mapping
 * TheSuperCanuck
 * KKAP (Agnostic deist)

Satanist

 * Kebab (3/4)
 * Phoenix (1/4)

Sunni

 * SunnyKhan688
 * Lisastr67
 * BatikanBora
 * RedSnakize
 * Jabril and the Arab Mappers
 * OmanGamer
 * Rongong123
 * TheRealCreator902
 * Jeff the Mapper
 * Neonia Mapping
 * Albrenna

Shia

 * PersiaMaps (disputed)

Ibadi

 * One Unknown mapper

Atheists (No Religion)

 * Polandball and mapping Slovenia 
 * LennyGeorge
 * Kebab Master Lel
 * Batran99
 * Gaelic Mapping
 * OrangeEmpire
 * Polandball421
 * Ceplio
 * Zukas
 * NTR
 * LaksTun
 * IonMapping
 * Ironhand21
 * OxoceroTwo
 * TheSoaringHawk
 * Dementor Mapping (1/3)
 * Trianon
 * MrTaylordw Mapper

Agnostics (People are not sure if they have a religion or not)

 * Claus The Mighty
 * Viper
 * Drex
 * Flaming Ninja Mapping
 * Olimario
 * KKAP (Agnostic deist)
 * Elliran (Sraw Rats)
 * HappyDance (Believes in Witches, Ghosts, Vampires, Spirits, Paranormal, Reincarnation etc)

Gnostic Atheists

 * The Phoenix Mapper
 * FedexWI

Buddhist-Athiest

 * Greentree mapping

Judaism

 * MrMapperIL
 * EvergreenMapping
 * Monsoonjr99
 * Asdf
 * Jake Mapping
 * Canadian Mapper
 * PillowMapping
 * Silvermilita/Infamous Derphog
 * HnH
 * super gaming

Info
There is a strawpoll that had votes of what religion they are. And right now you can add your self if you like.

http://strawpoll.me/5339111/