| Title | Type | City |
|---|---|---|
| Saints Constantine and Helen Orthodox Cathedral | Cathedral | Merrillville |
| Presentation of the Virgin Mary Orthodox Church | Church | Merrillville |
| Saint Clement Orthodox Church | Church | Merrillville |
| Descent of the Holy Spirit Orthodox Church | Church | Merrillville |
| Saint Elijah Serbian Orthodox Cathedral | Cathedral | Merrillville |
| Saint Sava Serbian Orthodox Church | Church | Merrillville |
| Title | Type | City |