Persecution Spurs World's Fastest Growing Church

Iranians watching Christian television programingIronically, one of the worst countries in the world for Christians happens to also be the country where the church is growing the fastest. The Islamic Republic of Iran has gained the distinction of being the leading country in the world where the church is growing at a rapid rate and greatly influencing the region for Christ.

Last year, the mission research organization, Operation World, listed Iran as having a 19.6 percent increase in its Christian population annually -- more than any other country in the world. Todd Nettleton, representing The Voice of the Martyrs USA, described the irony of it all on the organization's persecution blog. He noted that the Ayatollah Khomeini, the radical Islamic leader who took power in 1979, turned out to be "the greatest evangelist we've had in Iran." Statistics indicate that as many as 70 percent of Iranians have rejected Islam.

When Khomeini turned Iran into an Islamic republic in 1979, according to Open Doors USA, all missionaries were kicked out, evangelism was outlawed, Bibles in Persian were banned, and pastors were killed. Yet, the intense persecution has led to something truly remarkable. Fox News noted that despite the Iranian regime's crackdown on Christianity, a large underground church movement has been growing. Hundreds of Iranians have reportedly been converting to Christianity, and many are being baptized in underground churches held within private homes across the country.

A report by Open Doors USA states: "Many feared the small Iranian church would soon wither away and die. But the exact opposite has happened. More Iranians have become Christians in the past 20 years than in the previous 13 centuries put together since Islam came to Iran." This is backed up by statistics. "In 1979, there were an estimated 500 Christians from a Muslim background in Iran. Today, there are hundreds of thousands; some say more than one million. Whatever the exact number, many Iranians are turning to Jesus as Saviour and Lord."

  • Current Ministry Fund

    By funding television broadcasts, VOMC is making it possible for a vast audience of viewers to be reached throughout Iran with the "Good News" of Jesus' love via satellite.

    Project Fund: Underground Church

  • Country Information

    Designation
    Persecuted

    Population
    87,590,873 (2023 est.)

    Ethnicity
    Persian, Azeri, Kurd, Lur, Baloch, Arab, Turkmen and Turkic tribes

    Religion (%)
    Islam (98.5), Christian (0.7), Baha'i (0.3), agnostic (0.3), other (0.2)

    Leader
    Ayatollah Ali Hoseini-Khamenei (1989)

    Government type
    Theocratic republic

    Legal system
    Religious legal system based on secular and Islamic law

    Source: CIA World Factbook

  • Pray for Iran

    As the Gospel message goes forth over the airwaves, may the growth of the church continue to multiply despite persecution. Pray that the Iranian government will be open to change, allowing full rights and protection for its non-Muslim citizens as well. In the meantime, may those who are forced to flee the country find safe refuge and help so they can live in peace and worship the Lord with freedom.

Iran News

  • Retrial Denied for Imprisoned Believer
    Mehran
    Mehran Shamloui
    Photo: Article 18

    Iran's Supreme Court has recently rejected the application for a retrial that was submitted on behalf of Mehran Shamloui, a Christian believer who is currently serving a ten-year prison sentence for his participation in house church activities. Recipients of previously published Persecution & Prayer Alert reports may recall that Mehran had fled to Türkiye in search of refuge. While there, the accused Iranian was apprehended and forced to return to Iran, where he had subsequently been arrested. (The initially posted report regarding Mehran's arrest may be reviewed here.)

  • Over 50 Arrested Christians Accused of Espionage
    A map of Iran has several labels, all showing where Christians were arrested since June 24, 2025.
    A map of Iran, marking the arrests
    of Christians since June 24, 2025. 
    (Click on the image for a larger view.)
    Photo: Article18

    Iran's Ministry of Intelligence and Security (MOIS) recently reported that over 50 Christians have been arrested since the end of the recent conflict between Iran and Israel in June 2025. The country's intelligence agency labelled the detained believers as "Mossad mercenaries," claiming that they had been trained by churches abroad and were now operating "under the guise of the Zionist Christian evangelization movement."

  • Convicted Christian Deported and Arrested
    Mehran
    Mehran Shamloui
    Photo: Article 18

    On March 8th, Mehran Shamloui was one of three Christians convicted in Iran for "propaganda" and membership in an alleged "opposition group." He was sentenced to more than ten years in prison. (For more details, see this report.)

  • Laleh Saati Receives Conditional Release
    A smiling Laleh is outside, and the sun is shining on her face. A tree is in the background.
    Laleh Saati
    Photo: Article18

    Laleh Saati is a Christian convert and former asylum-seeker who was incarcerated in February 2024 and sentenced to two years in prison. (For more information on the imprisonment of this 46-year-old Iranian follower of Jesus, visit this page.) Throughout Laleh's time in custody, concerns have been raised about her physical health and psychological well-being. Most recently, it was reported that the Christian woman was denied needed medical treatment for a hand injury that had occurred as a result of a fall.