Center for the Study of Growing Churches • Megachurch Research Center      
      Leading church leaders to anticipate biblical church growth of biblical magnitude since 1985.
Dr. John N. Vaughan 

About Us

Dr. John

CHURCH GROWTH TODAY • Research and Consulting
Founded 1985 by Dr. John N. Vaughan.


Specialty: Megachurches. U.S. and global largest and fastest growing churches of all sizes since 1980.

American Society for Church Growth
, Past President & Founding Editor
(the society has been renamed The Great Commission Research Fellowship)
2007 recipient of the Donald McGavran Outstanding Leadership in Church Growth Award.

National Association of Church Business Administrators, President of the metro Memphis TN chapter.

The World's 20 Largest Churches (English, Korean)
Churched and Unchurched America - By the Numbers
America’s Most Influential Churches

The Large Church
Megachurches & America's Cities
Absolutely Double! (English, Korean, Bulgarian)
Hard Times, Tough Churches, Awesome God! - 13 Turnaround Churches That Lost Almost Everything
Nehemiah: God's Patriot -  Leading During Hard Times

In1981 I began researching the largest and /fasting growing U.S. and global churches (megachurches) in preparation for my book, The World's 20 Largest Churches, published in 1984. Dr. Peter Wagner (Fuller Theological Semnary) noted in his foreword to the book, "This book is the first one ever to identify and describe large, growing churches on an international scale.I salute John Vaughan for the dogged and determined research which was necessary for the book."

Since 1985  compiles and publishes the annual listing of America's100 Largest Churches and also America's100 Fastest
Growing Churches; and America's 50 Most Influential Churches List. Published the only listing of the World's 50 Largest Churches (evangelical, denominational, Independent, charismatic, and non-charismatic).  Since 2009 the lists have been expanded to include America's 200 Largest Churches.

Publisher of Church Growth Today Newsletter since 1985.  From 2003-2005 I shared my lists with Outreach magazine. These were the first lists of these churches to be published by the then one year old magazine. These lists, since my final issue with
them in 2005, are now published exclusively in the Church Growth Today eNewsletter to churches leaders and organizations..
Subscribe at .

U.S. and Global Megachurch Related Travel.
More than 1,000 U.S. and Canadian megachurches, South Korea, China, Turkey (Istanbul), England, France, Germany, Italy,
Brazil (Sao Paulo and Rio De Janeiro), Chile (Santiago),

North American Mission Board - Southern Baptist Convention (Mega City Focus Research - Boston and Las Vegas),
Church of the Nazarene Intl 1900-2000 (School of Large Church Management-K Church Project - nearly 500 invited senior staff for 3 year growth commitment project), Saddleback Church (Lake Forest CA), Salem Baptist Church (Chicago IL), Bay Area Fellowship (Corpus Christi TX), Anaheim Vineyard (Anaheim CA),  Vineyard Community Church (Cincinnati OH), Mars Hill Church (Seattle WA), Westlink Christian Church (Wichita KS), Foothills Christian Church (El Cajon CA), Water of Life Church (Fontana CA), Riverside Church (Denver CO), First Church of the Nazarene (Wichita KS), Woodland Lakes Community Church (Wichita KS).

Speaker/Seminar Leader. and/or Faculty
American Society for Church Growth (Los Angeles, Houston, Kansas City), European Church Growth Association
(Stuttgart, Germany), North American Mission Board (SBC), Liberty University (Lynchburg VA - Founder's Day),
Assemblies of God National Hdqt (Springfield MO, Chicago IL), Church of thje Nazarene Intl (Kansas City MO),
Southwest Baptist University (Bolivar MO 1985-1995, first U.S. university research Chair of Church Growth),
Southwestern Christian University (Bethany OK), Saddleback Church (Lake Forest CA), Baptist Bible College
(Springfield MO).

Recent contacts from media include:

AP, Bloomberg News, CNN, 60 Minutes, ABC Nightline, NBC Today, NBC Dateline, 20/20, NPR, Business Week,
Washington Post, Detroit News; Wall Street Journal, New York Times Magazine, Chicago Tribune, Dow Jones, Newsweek,
Boston Globe, Dallas Morning News, Orlando Sentinel, San Antonio Express, Yoido Full Gospel Church (Seoul, Korea) –
Church Growth Magazine, Outreach Magazine, The Church Report, Wichita Eagle. Gospel Today.


Past contacts received include:
TIME, U.S. News & World Report, Times of London, The Economist, BBC, NBC Today, Money, Fortune, American Banker,
Money, LA Times, Dallas Morning News, Houston Chronicle, Rocky Mt News, Palm Beach Post, Miami Herald, Trenton Times,
Kansas City Star, Harvard Kennedy School of Government, USC Dept Sociology, Purdue University, Princeton University, White House and others.

International media contacts received include:
Australia, Paris, London, Canada, Japan, South Korea and Norway.

Fuller Theological Seminary (Pasadena CA), DMin.
     Dissertation: Satellite Groups-Valid Church Growth Strategy (multi-site ministry among the world's largest churches)
Southwestern Baptist Theological Seminary (Ft Worth TX), M.Div.
Institute of Religion, Texas Medical Center (Houston TX)
University of Memphis (Memphis TN), BA (Sociology and History)

Church Staff Experience.
Southern Baptist congregations in Tennessee (Memphis), Texas (Dallas-Ft Worth), Alabama (Birmingham), and
Mississippi (open country), with average membership and/or attendance ranging from 2 to 5,000 people. One church was
among the 10 fastest growing Southern Baptist churches in the nation. Two of the churches were in high ethnic turnover communities (Anglo/African-American) and one is today in a transitional Anglo/Hispanic community. 



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