Among Nebraskans reporting at least one specific ancestry in the 2000 census, 661,133 identified their ancestry as German, 163,651 as English, 229,805 as Irish, 93,286 as Czech, and 84,294 as Swedish. The 2000 population also included 68,541 black Americans, 21,931 Asians, and 836 Pacific Islanders. There were 94,425 Hispanics and Latinos in 2000, representing 5.5% of the total population. Foreign-born residents numbered 74,638, or 4.4% of the total population, in 2000.
There were 14,896 American Indians in Nebraska as of 2000, down from around 16,000 in 1990. The three Indian reservations maintained for the Omaha, Winnebago, and Santee Sioux tribes had the following populations as of 2000: Omaha, 5,194, and Winnebago, 2,588, and Santee Sioux, 603.