United States congressional delegations from Dakota Territory

From 1861 to 1889, Dakota Territory (which later became the states of North Dakota, South Dakota, and Montana, and parts of Idaho, Wyoming, and Nebraska) sent a single non-voting Delegate to the United States House of Representatives.

Over time, parts of the Territory were divided into Idaho Territory, Wyoming Territory, and Nebraska Territory. On November 2, 1889, the remaining Territory was split between the new states of North Dakota and South Dakota.