When did the Federalist Party collapse?

The collapse of Federalist Party coincided with a period of increased American nationalism and unity known as the Era of Good Feelings. The American people wanted an end to the bitter partisan bickering in contemporary political dialogue, and since the Federalist Party was the less popular of the two parties (the other being the Democrat-Republican Party), virtually all support for it simply faded away. Under the administration of James Monroe and after the War of 1812, and the end of the Napoleonic wars, politicians had less to divide them.