Other denominations in Illinois
- A Covenant Order of Evangelical Presbyterians
- A.M.E. Zion
- African Methodist Episcopal Church
- AME
- AMENZ
- American_Baptist
- Anglican Church
- AOG
- Apostolic
- Apostolic Christian Church of America
- Apostolic Church
- Assemblies of God
- Association of Vineyard Churches
- AVC
- Baptist
- Baptist General Conference
- BIBLE
- Bible Churches
- Bible Methodist
- Calvary Chapel
- Catholic
- Catholic Church
- Christian
- Christian and Missionary Alliance
- Christian Church
- Christian Churches and Churches of Christ
- Christian Fellowship
- Christian Fellowship Ministries
- Christian Methodist Episcopal Church
- Christian Reformed Church
- Christian Science
- Church of Christ
- Church of God
- Church of God in Christ
- Church of God of Prophecy
- Church of Our Lord Jesus Christ of Apostolic Faith
- Church of the Brethren
- Church of the Nazarene
- CME
- COC
- COG-ANN
- Communion of Reformed Evangelical Churches
- Community Church
- Community of Christ
- Congregational
- Congregational Christian Churches
- Coptic Orthodox Church
- CRC
- Disciples of Christ
- DOC
- EFC
- ELCA
- Episcopal
- Episcopal Church
- Evangelical Christian
- Evangelical Church
- Evangelical Covenant Church
- Evangelical Free Church
- Evangelical Free Church of America
- Evangelical Friends Church International
- Evangelical Lutheran
- Evangelical Lutheran Church in America
- Evangelical Presbyterian Church
- Fellowship of Evangelical Churches
- First Baptist
- Foursquare Church
- Foursquare Gospel
- Free Methodist
- Free Methodist Church
- Free Methodist Church of North America
- FS
- Full Gospel Baptist Church Fellowship, International
- Full Gospel Church
- Full-Gospel
- FWB
- Global Methodist Church
- Gospel Hall Assemblies
- Grace Communion International
- Holy Syriac Orthodox Church
- ICCC
- ID
- IFCA International
- Independent
- Independent Baptist
- Interdenominational
- Kenneth Hagin Ministries
- Lutheran
- Lutheran Church
- Lutheran Church--Missouri Synod
- Lutheran Congregation in Mission for Christ - LCMC
- Lutheran/ELCA
- Mennonite
- Mennonite Church
- Methodist
- Missionary Church
- Missionary Sisters of St Peter Claver
- New Apostolic Church
- New Church
- New Life
- New Testament Christian Church
- Non Denominational
- Non-denominational
- Non-Denominational / Independent
- Non-denominational Evangelical
- Orthodox
- Orthodox Church
- Orthodox Church in America
- Orthodox Presbyterian Church
- Other
- Pentecostal
- Pentecostal Assemblies of the World
- Pentecostal Charismatic
- Polish National Catholic Church
- Presbyterian
- Presbyterian Church
- Presbyterian Church in America
- Presbyterian Church USA
- RCA
- Reformed Church in America
- Roman Catholic
- SA
- SBC
- Seventh-day Adventist Church
- Southern Baptist Convention
- Spiritualist Church
- The Church of Jesus Christ of Latter-day Saints
- Unitarian
- Unitarian Universalist
- United Brethren in Christ
- United Church
- United Church of Christ
- United Methodist Church
- United Pentecostal Church International
- Unity
- Victory Outreach International
- Vineyard
- Vineyard USA
- Wesleyan
- Wesleyan Church
