Joseph Cochran died in Urmia at the age of 50, on 18 August 1905, on the second floor of his wooden house in the Medical School. His death was mourned by many. According to reports, his funeral was attended by tens of thousands people. He was buried in the Assyrian Missionary Cemetery located on the side of "Seer Mountain" in Urmia facing his wooden house, close to the resting places of his wife Catherine and her parents. His epitaph reads: ""He came not to be ministered unto, but to minister.""