| John McKoon House | |
| Coordinates: | 40.0453°N -91.5019°W |
| Built: | c., c. 1877 |
| Architecture: | Greek Revival, I-house |
| Added: | June 3, 1999 |
| Area: | less than one acre |
| Mpsub: | La Grange, Missouri MPS |
| Refnum: | 99000665 |
John McKoon House, also known as Johnson House, was a historic home located at La Grange, Lewis County, Missouri. It was built about 1857, and was a two-story, five-bay, brick I-house with Greek Revival style design elements. It had a -story brick rear ell enlarged about 1876. It featured an original two story portico with square wood columns and a simple wide cornice with delicately scaled dentil molding.[1] It has been demolished.
It was listed on the National Register of Historic Places in 1999.