The query of who qualifies as an evangelical and what number of evangelicals exist worldwide continues to puzzle scholars, church leaders and mission researchers alike. That was the central theme of a Sept. 2 webinar hosted by the World Evangelical Alliance and released publicly Sept. 5, featuring two leading voices in global religious demography.
Dr. Gina A. Zurlo, editor of the World Christian Database and a lecturer at Harvard Divinity School, and Jason Mandryk, longtime editor of Operation World, outlined each the difficulties and the need of measuring a movement that’s increasingly diverse and shifting rapidly toward the Global South.
Both experts agreed that unlike Catholicism, Orthodoxy, and even Pentecostalism, evangelicalism has no universally agreed-upon definition. This makes the duty of counting adherents unusually complex. Yet, they stressed, reliable figures are crucial for understanding how Christianity is changing worldwide.
Mandryk opened with a blunt assessment: “There is not any such thing as the evangelical.”
The word, he said, carries multiple meanings depending on context. Within churches, it might indicate theological commitments to the authority of Scripture, personal conversion, and evangelistic activism. In secular contexts, particularly in Western media and politics, it is commonly used pejoratively—conjuring images of anti-science attitudes, stubbornness or partisan identity.
“Virtually no one is using it the exact same way,” Mandryk explained. “And most individuals aren’t bothering to try to grasp how others are using it.”
Zurlo echoed the issue, noting that while “you realize what a Catholic is, or a Presbyterian, or a Pentecostal,” the term evangelical stays “squishy.” For her, this ambiguity isn’t necessarily a weakness but a sociological reality that demands more descriptive approaches moderately than rigid definitions.
Why numbers matter
Both speakers emphasized that counting evangelicals isn’t about making everlasting judgments on salvation. “We should not God,” Zurlo said. Instead, the aim is to trace demographic shifts that profoundly influence the form of worldwide Christianity.
“Christianity and evangelicalism look fundamentally different than they did a generation ago,” she said. “And each generation it changes—especially with the shift of Christianity to the Global South.”
Mandryk added that evangelicalism has been amongst probably the most significant forces shaping Christianity in the trendy era—for good and for sick. Its global reach has unified Christians in mission and prayer, but in addition divided them through disputes over doctrine, politics and culture. Quantifying the movement, he said, is one solution to understand its impact.
Operation World’s method: the Bebbington Quadrilateral
For Operation World, the place to begin is historian David Bebbington’s influential description of evangelicalism, also known as the Bebbington Quadrilateral. This framework highlights 4 central traits.
The first is biblicism, a conviction that the Bible holds supreme authority in matters of religion and practice. The second is crucicentrism, a give attention to the sacrificial death of Christ on the cross as the guts of the gospel message. The third is conversionism, the idea that each individual must personally experience recent birth and transformation through faith in Christ. Finally, the fourth is activism, which stresses that real faith needs to be lived out in motion, particularly through evangelism and engagement in social causes.
Mandryk explained that his team applies these criteria to denominations in every country, examining statements of religion, practices, and affiliations. They also seek the advice of national leaders and researchers to make sure local realities are reflected.
This approach yields an estimate of greater than 700 million evangelicals worldwide. Importantly, it acknowledges overlap with Pentecostal and charismatic traditions, which in some contexts are virtually indistinguishable from evangelicalism and in others only partially aligned.
World Christian Database’s threefold model
Zurlo presented a distinct framework, developed over nearly twenty years of research. Rather than lean on theological definitions, the World Christian Database applies social-scientific categories to what she calls “wider evangelicalism.” This model has three layers:
Type 1: Denominational affiliation – Churches formally affiliated with evangelical councils or organizations, yielding about 393 million adherents. Already, nearly half are in Africa.
Type 2: Pentecostals and charismatics – Added to Type 1, this expands the entire to 635 million. Scholars broadly agree that Pentecostals share evangelical emphases on personal piety, conversion and Scripture, even in the event that they differ on certain doctrines.
Type 3: Majority world Protestants – Encompassing mainline Protestants within the Global South, black Protestant churches within the U.S., and movements like Chinese house churches that can’t affiliate formally but display evangelical traits. This adds 302 million.
Taken together, these three categories produce a striking figure: 937 million evangelicals worldwide—nearly one in eight people on the planet.
The challenge of contested boundaries
Zurlo illustrated how contested the category could be with examples from around the globe.
In Brazil, she noted, the Universal Church of the Kingdom of God is one in every of the most important neo-Pentecostal movements, claiming thousands and thousands of members across greater than 200 countries. It emphasizes salvation, piety and Scripture but can be related to prosperity teaching and controversial financial practices. When Zurlo and her colleagues asked Brazilian pastors how evangelical the church was, answers ranged from 0% to 100%.
Similarly, African-American Protestant churches within the U.S. often align closely with evangelical belief and practice but avoid the label resulting from its political and racial connotations. And in China, where each registered and underground churches cannot formally join evangelical alliances, scholars estimate that anywhere from 50% to almost 100% of congregations could reasonably be described as evangelical.
“Who gets to come to a decision?” Zurlo asked. For her, such examples highlight the necessity to move away from strict definitions and toward “family resemblances” that describe overlapping traits across diverse contexts.
Converging conclusions despite different methods
While Operation World and the World Christian Database use different approaches, each result in the identical overarching conclusion: evangelicalism is not any longer centered within the West.
Mandryk noted that by around 1980, evangelicals had already develop into a Global South majority. Today, 70% of the world’s population has been born right into a reality where evangelicalism is primarily African, Asian and Latin American.
“The stereotypes that dominate headlines—white, Western, English-speaking, politically conservative—should not what evangelicalism looks like globally,” he said. “Evangelicals are Zulu, Chinese, Brazilian, Filipino. And that diversity is something to have fun.”
Zurlo’s figures underscore the identical point. In her widest definition, 47% of evangelicals are in Africa, 26% in Asia, and only 11% in North America. The country with the most important evangelical population, she said, is not any longer the United States but China.
For each scholars, the demographic transition calls for humility and attentiveness. Western Christians, long accustomed to defining the contours of evangelical identity, must now recognize that the demographic majority lies elsewhere.
“It’s not individuals who seem like me who needs to be defining the identity markers of evangelical belief and practice,” Zurlo said. “It’s Asians, Africans, Latin Americans, and islanders who now represent the demographic center of the movement.”
Mandryk echoed this angle, emphasizing that the evangelical movement’s diversity mirrors the range of the worldwide church itself. “The body of Christ is incredibly diverse,” he said. “Evangelicalism is equally diverse in geography, theology and practice. That is something to embrace.”
Between 393 million and 937 million
So what number of evangelicals are there? The answer, in accordance with Zurlo, falls somewhere between 393 million and 937 million, depending on how the term is defined. That wide selection could also be unsatisfying, she admitted, but it surely reflects the fact of a movement that defies neat categorization.
For Mandryk, the precise figure is less vital than what the range represents. “All of those numbers are only attempts by researchers to explain what God is definitely doing on the bottom,” he said.
Both agreed that evangelicalism needs to be understood less as a bounded category and more as a dynamic global family, united by shared resemblances moderately than rigid definitions.
“Global evangelicalism is more diverse than you’re thinking that,” Zurlo concluded. “And yet we are able to all find our place in it. That’s its strength, not its weakness.”
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