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- Our Lady of Mercy Catholic Church Catholic (Latin rite) · House of prayer
- Queen of Peace Roman Catholic Church Catholic (Latin rite) · House of prayer
- Sacred Heart Roman Catholic Church Catholic (Latin rite) · House of prayer
- St. Benedict Catholic Church Catholic (Latin rite) · House of prayer
- St. Joseph's Catholic Church Catholic (Latin rite) · House of prayer
- St Thomas D'Aquin Catholic Church Catholic (Latin rite) · House of prayer
- Sarnia Gospel Hall House of prayer · 1791 London Line
- All Saints Anglican Church Anglican · House of prayer
- Bethel Pentecostal Church House of prayer
- Bluewater Baptist Church Baptist · House of prayer
- Canon Davis Memorial Anglican Church Anglican · House of prayer
- Central Baptist Church Baptist · House of prayer
- Central United Church House of prayer
- Christ Lutheran Church Lutheran · House of prayer
- Church of Christ Sarnia House of prayer
- Community of Christ House of prayer
- Devine Street Gospel Chapel House of prayer
- Dunlop United Church House of prayer
- Fair Havens Baptist Church Baptist · House of prayer
- First Christian Reformed Church Reformed and Presbyterian · House of prayer
- Grace United Church House of prayer
- Holy Trinity Ukrainian Orthodox Church Orthodox (Byzantine) · House of prayer
- Huron Baptist Church Baptist · House of prayer
- Kingdom Hall of Jehovah's Witnesses Other restorationist · House of prayer
- Kingdom Hall of Jehovah's Witnesses Other restorationist · House of prayer
- Laurel Lea St. Matthew's Presbysterian Church Reformed and Presbyterian · House of prayer
- Lighthouse Community Church House of prayer
- Living Hope Christian Reformed Church Reformed and Presbyterian · House of prayer
- New Horizons Community Church House of prayer
- Paterson Presbyterian Church Reformed and Presbyterian · House of prayer
- Redeemer Christian Reformed Church Reformed and Presbyterian · House of prayer
- Redeemer Lutheran Church Lutheran · House of prayer
- River City Vineyard House of prayer
- Sarnia Evangelical Missionary Church House of prayer
- Sarnia Foursquare Church Pentecostal and Charismatic · House of prayer
- Sarnia Seventh-day Adventist Church Adventist · House of prayer
- Sovereign Grace Community Church House of prayer
- St. Andrew's Presbysterian Church Reformed and Presbyterian · House of prayer
- St. Bartholomew's Anglican Church Anglican · House of prayer
- St. Demetrios Greek Orthodox Church Orthodox (Byzantine) · House of prayer
- St. George's Ukrainian Catholic Church Catholic (Latin rite) · House of prayer
- St. Giles Presbyterian Church Reformed and Presbyterian · House of prayer
- St. John's Anglican Church Anglican · House of prayer
- St. Luke's United Church House of prayer
- St. Paul's United Church House of prayer
- Temple Baptist Church House of prayer
- The Church of Jesus Christ of Latter-day Saints Other restorationist · House of prayer
- The Redeemed Christian Church of God House of prayer
- The Salvation Army Methodist and Holiness · House of prayer
- The Tabernacle Church of God House of prayer
- Trinity Anglican Church Anglican · House of prayer
- Unitarian Fellowship of Sarnia and Port Huron House of prayer · 180 College Avenue North