Harriston
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- Saint Thomas the Apostle Roman Catholic ChurchCatholic (Latin rite) · Church · 5802 Highway 89
- Crossroads Life ChurchChurch · 99 Young Street West
- Harriston Seventh-Day Adventist ChurchAdventist · Church · 242 Queen Street South
- Harriston United ChurchChurch · 126 Young Street West
- James Street United ChurchHouse of prayer
- Knox-Calvin Presbysterian ChurchReformed and Presbyterian · Church · 135 Elora Street South
- Knox Presbyterian ChurchReformed and Presbyterian · Church
- Palmerston Christian Reformed ChurchReformed and Presbyterian · House of prayer
- Palmerston Evangelical Missionary ChurchHouse of prayer