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Largest Christian Denominations in US

Can you name the 30 largest denominations in the US by adherents? List specific denominations, not tradition/family Answers are rounded to the nearest 10,000 Based on Membership Reports from 2020
List specific denominations, not tradition/family
Answers are rounded to the nearest 10,000
Based on Membership Reports from 2020: Source
Quiz by
Jbqer
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Last updated: November 13, 2025
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First submittedFebruary 17, 2025
Times taken177
Average score26.7%
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Adherents (2020)
Answer
61,860,000
Roman Catholic
21,090,000
Non-denominational
17,650,000
Southern Baptist Convention
8,020,000
United Methodist Church
6,720,000
Church of Jesus Christ of Latter-Day Saints
3,140,000
Evangelical Lutheran Church in America
3,090,000
General Council of the Assemblies of God
3,020,000
Jehovah’s Witness
2,430,000
National Missionary Baptist Convention of America
1,800,000
Lutheran Church- Missouri Synod
1,580,000
Episcopal Church
1,570,000
National Baptist Convention, U.S.A.
1,490,000
Presbyterian Church (U.S.A)
1,420,000
Churches of Christ
1,380,000
Christian Churches and Churches of Christ
Adherents (2020)
Answer
1,340,000
Seventh-Day Adventist Church
1,260,000
American Baptist Churches USA
1,060,000
African Methodist Episcopal Church
920,000
United Church of Christ
920,000
Church of God in Christ
910,000
Church of the Nazarene
870,000
Church of God (Cleveland, TN)
430,000
Church of God (Anderson, IN)
410,000
Christian and Missionary Alliance
410,000
Wisconsin Evangelical Lutheran Synod
400,000
Christian Church (Disciples of Christ)
380,000
Greek Orthodox Archdiocese of America
370,000
Presbyterian Church in America
360,000
International Church of the Foursquare Gospel
320,000
Amish Groups (undifferentiated)
310,000
Wesleyan Church
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7 Comments
Jbqer
+2
Level 63
Feb 17, 2025
Hi all,

This is my first quiz created on Jetpunk. Please let me know how to improve formatting and answer type-ins below. Thanks for playing!

KiloNova
+3
Level 61
Feb 17, 2025
My suggestion is that you should probably make the source a cavaet and link it.

To make a cavaet you can just click the big button that says add cavaet below the description.

To link *heriocally jumps in* you have to use HTML, you can see this blog of mine and scroll down a bit.

Pontiac
+2
Level 61
Nov 13, 2025
Can you accept Methodist for United Methodist Church?
Jbqer
+2
Level 63
Nov 13, 2025
Edited and submitted for change, thanks!
Basaball
+3
Level 52
Nov 17, 2025
5 as a non-christian!
jbro
+2
Level 76
Nov 18, 2025
Congrats on your first quiz and the idea and research is there. You just need to add much more typeins so that people can do better on the quiz. Accept Lutheran, Evangelical and Presbyterian for example.
Jbqer
+1
Level 63
Nov 20, 2025
Possibly, however all the typeins you list have multiple answers with those words explicitly in the name. Would run into the issue of quiz's integrity vs. convenience. Also many of these denominations that could be considered "evangelical" (SBC, for instance).
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