| Business | Phone |
| Apostolic Christian Church 330 Centre St, Harrow N0R 1G0 | (519) 738-4380 |
| German Pentecostal Church 21 Herdman St, Harrow N0R 1G0 | (519) 738-6887 |
| Harrow United Mennonite Church Walker Rd, Harrow N0R 1G0 | (519) 738-2148 |
| Harrow Baptist Church 2548 Hwy 18 E, Harrow N0R 1G0 | (519) 738-2275 |
| Harrow Gospel Tabernacle 103 Queen St, Harrow N0R 1G0 | (519) 738-4154 |
| St Andrew Anglican Church King St E, Harrow N0R 1G0 | (519) 738-4362 |
| St Anthony Of Padua Cath Ch 120 Munger St W, Harrow N0R 1G0 | (519) 738-2556 |
| Christ Anglican Ch Colchester Bagot St, Harrow N0R 1G0 | (519) 738-4198 |
| Christ Lutheran Church 304 Munger St, Harrow N0R 1G0 | (519) 738-4044 |