The Presbytery of London is made up of 23 churches in 19 pastoral charges.
Information about each congregation is provided below.
Additional information about a congregation can be acquired by visiting the church’s home page (click on the image) or contacting the church office.
| Appin Presbyterian Church 54 Wellington Street Appin, Ontario |  | |
| Argyle Presbyterian Church Highway 76 13333 Graham Rd., West Elgin North of West Lorne |  | |
| Burns Mosa Presbyterian Church 24493 Dundonald Rd Glencoe, Ontario N0L 1M0 |  | |
| Caradoc Presbyterian Church 8503 Scotchmere Drive, R.R. #1 Strathroy, Ontario |  | |
| Chalmers Presbyterian Church 342 Pond Mills Road London, Ontario |  | |
| Dorchester Presbyterian Church 1669 Richmond Street Dorchester, Ontario |  | |
| Duff Largie Presbyterian ChurchCountyRd. 9 North of Dutton |  | |
| Elmwood Avenue Presbyterian Church 111 Elmwood Avenue East London, Ontario |  | |
| Glencoe Presbyterian Church 177 Main Street Glencoe, Ontario |  | |
| Guthrie Church in Melbourne 606 Brook Street Melbourne, ON N0L 1T0 |  | |
| Knox Presbyterian Church 55 Hincks Street St. Thomas, Ontario |  | |
| Knox Presbyterian Church 35596 Fingal Line Fingal, Ontario |  | |
| Knox-St. Andrew's Church Shackleton Street Dutton, Ontario |  | |
| New St. James Presbyterian Church 280 Oxford Street East London, Ontario |  | |
| Oakridge Presbyterian Church 970 Oxford Street W London, Ontario |  | |
| South Nissouri Presbyterian Church 17358 Oliver Road West Nissouri, Ontario |  | |
| St. George's Presbyterian Church 1475 Dundas Street East London, Ontario |  | |
| St. James Presbyterian Church 44936 Ferguson Line St. Thomas, Ontario |  | |
| St. John's Presbyterian Church 238 Colborne Street Port Stanley, Ontario |  | |
| St. John's Presbyterian Church Wardsville Wardsville, Ontario |  | |
| St. Lawrence Presbyterian Church 910 Huron Street London, Ontario |  | |
| Trinity Community Presbyterian Church 590 Gainsborough Road London, Ontario |  | |
| Westmount Presbyterian Church 521 Village Green Avenue London, Ontario |  |