Blessed Savior Lutheran Church
- Information on Sunday services, Bible study, Sunday school along with inks for youth, calendar of events, choir, and a church newsletter.
- http://www.blessedsaviorlc.com/

First Baptist Church of O'Fallon
- Features ministry, bible study, and worship schedule.
- http://www.fbcofallon.org/

O'Fallon United Church of Christ
- Includes Bible study, ministry, groups and services information.
- http://www.ofallonucc.org/

St. Nicholas Parish
- Roman Catholic. Includes events, history, schedule and services.
- http://www.stnicholasofallon.org/

St. Michael's Episcopal Church
- Features mission, history, schedule, and photos.
- http://www.stmichaelsofallon.org/

O'Fallon Assembly of God
- Includes beliefs, services, staff, ministries, missions, education, calendar, contacts, and spiritual help.
- http://www.ofallon-ag.org/

O'Fallon Apostolic Assembly
- Spirit of Elijah Ministries. Includes schedule, staff information, and contacts.
- http://www.ofallonapostolic.org/

New Creation Presbyterian Church
- Features calendar, vision, mission, and worship schedule.
- http://www.newcreationpc.org/

Metro-East Christian Fellowship
- Eternal life church. Includes values, calendar, services, and schedule.
- http://www.mecf.net/

First United Methodist Church
- Includes adult and children services, contacts, schedule and staff information.
- http://www.ofallonmethodistchurch.org/

Central Christian Church
- Includes beliefs, schedule, and contacts.
- http://www.centxian.org/

Saint Clare Church
- Mission statement, Mass schedule, staff directory, map and directions, history.
- http://www.stclarechurch.org/

Faith Lutheran Church
- ELCA Church, in O'Fallon, Illinois. Worship service information, monthly newsletter, and church pictures are included.
- http://www.faith-online.org