English: This map is an updated version of the 2020 version by Smaug the Golden. It is based on official census data which may make it have slighly understated percentages of Muslims.

Below I list a bunch of sources on which the map is based on: 90-95% turkey -> government census says its close to 99%, realistically its at a similar level to kosovo ~93.5% kosovo https://askapi.rks-gov.net/Custom/31bc24d2-45e4-4eb5-a567-405f4bdd197f.pdf 50-70 % ~69.3% kazakhstan https://web.archive.org/web/20220902140633/https://stat.gov.kz/api/getFile/?docId=ESTAT464825 ~51.3% bosnia https://www.popis.gov.ba/popis2013/doc/Knjiga2/K2_B_E.pdf ~50.7% albania https://web.archive.org/web/20240628133314/https://shqiptarja.com/uploads/ckeditor/667eb96647c4bcens-2023.pdf 30-35 % ~32.2% north macedonia https://web.archive.org/web/20220330231830/https://www.stat.gov.mk/pdf/2022/2.1.22.10-mk-en.pdf/ 10-20 % ~20% montenegro https://monstat.org/uploads/files/popis%202021/saopstenja/SAOPSTENJE_Popis%20stanovnistva%202023%20II_cg.pdf ~10% france https://www.insee.fr/en/statistiques/7342918 5-10 % ~9.8% bulgaria https://www.nsi.bg/sites/default/files/files/pressreleases/Census2021_ethnos.pdf ~5% denmark https://www.statista.com/statistics/1455704/religions-denmark/ sweden ??? -> anywhere from 2.1% as on the Religion in Sweden wiki to 8%! ~8.3% austria https://www.statistik.gv.at/fileadmin/announcement/2022/05/20220525Religionszugehoerigkeit2021.pdf ~7% russia -> census ~6.7% germany https://remid.de/info_zahlen/islam/ ~6% netherlands https://www.cbs.nl/nl-nl/nieuws/2025/16/daling-aandeel-mensen-dat-aangeeft-bij-religie-te-horen-stagneert ~6% belgium -> religion censuses/polling are banned!, same approximation used as on Islam in Belgium ~6% luxembourg https://luxtoday.lu/en/knowledge/religion-in-luxembourg ~6.5% united kingdom https://www.ons.gov.uk/peoplepopulationandcommunity/culturalidentity/religion/bulletins/religionenglandandwales/census2021 ~6% switzerland https://www.bfs.admin.ch/bfs/en/home/statistics/population/languages-religions/religions.html ~6% liechtenstein https://www.state.gov/reports/2022-report-on-international-religious-freedom/liechtenstein 4-5 ~4.2% serbia https://popis2022.stat.gov.rs/en-us/5-vestisaopstenja/news-events/20230616-st/?a=0&s=0 2-4 ~3.9% italy https://cesnur.com/dimensioni-del-pluralismo-religioso-in-italia/ ~3.41% norway https://www.ssb.no/en/kultur-og-fritid/statistikker/trosamf/aar/2020-12-08 ~2.7% spain https://www.thearda.com/world-religion/national-profiles?u=208c ~2.4% slovenia https://www.stat.si/popis2002/en/rezultati/rezultati_red.asp?ter=SLO&st=57 -> outdated source ~2.3% finland https://helda.helsinki.fi/server/api/core/bitstreams/3ba24ac2-7b49-4874-afac-c7575c25bca4/content ~2% greece https://www.state.gov/reports/2022-report-on-international-religious-freedom/greece/ ~2.1% cyprus (only government controlled) https://cystatdb.cystat.gov.cy/pxweb/en/8.CYSTAT-DB/8.CYSTAT-DB__Population__Census%20of%20Population%20and%20Housing%202021__Population__Population%20-%20Language,%20Religion,%20Ethnic%20Religious%20Group/1891632E.px/ 1-2 ~1.6% ireland https://www.cso.ie/en/csolatestnews/pressreleases/2023pressreleases/pressstatementcensus2022resultsprofile5-diversitymigrationethnicityirishtravellersreligion/ ~1.32% andorra https://www.thearda.com/world-religion/national-profiles?u=6c ~1.32% croatia https://www.croatiaweek.com/share-of-croats-in-croatia-increases-as-census-results-published/ <1% <1% iceland https://px.hagstofa.is/pxen/pxweb/en/Samfelag/Samfelag__menning__5_trufelog__trufelog/MAN10001.px/table/tableViewLayout2/ <1% estonia, latvia, lithuania -> census <1% poland, belarus, ukraine -> census, Ukrainian data is old! <1% czehia, slovakia, hungary -> census <1% portugal https://tabulador.ine.pt/indicador/?id=0011644&lang=EN <1% monaco -> not much information <1% san marino https://www.thearda.com/world-religion/national-profiles?u=194c <1% romania https://istorieevanghelica.ro/2022/12/30/rezultatele-partiale-ale-recensamantului-din-2022-privind-situatia-religiei-in-romania-2/

<1% moldova https://statistica.gov.md/ro/statistic_indicator_details/56