Explore the Family Name Ostrum

The meaning of Ostrum

Altered form of Swedish Öström (see Ostrom).

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Ostrum in the United States?

Based on the Decennial U.S. Census data, the popularity of the surname Ostrum saw a decline from 2000 to 2010. The rank of this surname dropped from 37,200 in 2000 to 43,584 in 2010, a decrease of around 17.16 percent. In terms of raw numbers, the count of individuals with this surname decreased by approximately 12.23 percent, going down from 564 in 2000 to 495 in 2010. This resulted in the proportion per 100,000 people sliding down to 0.17 in 2010 from 0.21 in 2000, marking a reduction of about 19.05 percent.

20002010Change
Rank#37,200#43,584-17.16%
Count564495-12.23%
Proportion per 100k0.210.17-19.05%

Race and Ethnicity of people with the last name Ostrum

Turning towards the ethnic identity associated with the surname Ostrum, the Decennial U.S. Census data reveals that it is predominantly linked with White ethnicity, with 93.74 percent in 2010 down slightly from 96.10 percent in 2000. Other minor ethnic identities linked with this surname include Asian/Pacific Islander and Hispanic, each recorded at 2.22 percent and 2.63 percent respectively in 2010. The representation of these ethnicities was not present in the 2000 census. Those identifying with two or more races account for 1.01 percent, showing a decrease of 52.58 percent from 2000. The census does not register any Black, American Indian and Alaskan Native individuals with the Ostrum surname.

20002010Change
White96.1%93.74%-2.46%
Hispanic0%2.63%0%
Asian/Pacific Islander0%2.22%0%
Two or More Races2.13%1.01%-52.58%
Black0%0%0%
American Indian and Alaskan Native0%0%0%