Find Christian resources in St. Clair by city which include Glenview Churches, Belleville Churches, O'Fallon Churches, Cahokia Churches, Fairview Heights Churches, Crest Hill Churches. To browse through churches by all cities in St. Clair County, see the list in the left column.
Leading Christian Denominations in St. Clair County Illinois
| Evangelical Denominations | 33,035 |
| Catholic Church | 52,674 |
| American Baptist Churches | 1,650 |
| Assemblies of God | 1,444 |
| Christian Church (Disciples of Christ) | 343 |
| Christian Churches and Churches of Christ | 1,657 |
| Church of the Nazarene | 836 |
| Episcopal Church | 683 |
| Evangelical Lutheran Church | 1,531 |
| International Church of the Foursquare Gospel | 68 |
| Presbyterian Church | 1,270 |
| Seventh-Day Adventist Church | 508 |
| United Church of Christ | 11,071 |
| United Methodist Church | 6,932 |
Non-Denominational Christians in St. Clair County Illinois
| Independent, Charismatic Churches | 600 |
| Independent, Non-Charismatic Churches | 1,350 |
Note: The data was downloaded from the Association of Religion Data Archives, and were collected by Association of Statisticians of American Religious Bodies.
About St. Clair County Illinois - Background Information
| Total population | 260,919 |
| Population per square mile | 385.7 people |
| Births | 3,724 |
| Median income | $42,190 |
| Average travel time to work | 24.7 minutes |
| Number of companies | 15,402 |
| Size of St. Clair County Illinois | 663.81 square miles |
Source: 2000 census, U.S. Census Bureau