Final answer:
The irony at the end of 'Richard Cory' is the contrast between the townspeople's perception of Cory's enviable life and him suddenly taking his own life which indicates his internal despair.
Step-by-step explanation:
The irony in the ending of the poem "Richard Cory" by Edwin Arlington Robinson lies in the stark contrast between the townspeople's perception of Cory and the reality of his personal life. Throughout the poem, Richard Cory is portrayed as an enviable figure who has wealth, grace, and charm, seemingly living a charmed life. However, the final lines reveal a tragic twist when Cory, despite all his outward appearances of success, unexpectedly takes his own life. This reveals the irony that what is visible on the outside does not necessarily reflect the internal struggles or the true contentment of an individual.