Explore the Family Name Koob
The meaning of Koob
German: from a pet form of the personal name Jakobus (see Jacob). In North America, this name has been altered to Cope. Some characteristic forenames: German Gunther, Hans, Hermann, Otto.
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Koob in the United States?
Based on the Decennial U.S. Census, the surname Koob saw a slight shift in popularity from 2000 to 2010. In 2000, it ranked 21,742 out of all surnames but dropped by just under 4 percent to a rank of 22,559 in 2010. Despite this drop in ranking, the actual count of individuals with the surname Koob actually increased by just over 2 percent, from 1,116 in 2000 to 1,139 in 2010. However, when considering the proportion of this surname per 100,000 people, there was a nearly 5 percent decrease.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #21,742 | #22,559 | -3.76% |
| Count | 1,116 | 1,139 | 2.06% |
| Proportion per 100k | 0.41 | 0.39 | -4.88% |
Race and Ethnicity of people with the last name Koob
Regarding ethnicity, according to the Decennial U.S. Census, the surname Koob is predominantly associated with the White ethnic identity. In 2000, about 95.79 percent of those with the surname identified as White, although this decreased slightly to 93.68 percent in 2010. There were minor increases in the percentages of those identifying as Asian/Pacific Islander and Hispanic, rising from 0 to 1.40 percent and 1.52 to 2.19 percent respectively. The percentage of those identifying as two or more ethnicities also increased substantially by 51.72 percent, while the identification with Black ethnicity dropped completely from 0.81 percent in 2000 to 0 percent in 2010. No data was recorded for American Indian and Alaskan Native ethnicity in either year.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 95.79% | 93.68% | -2.2% |
| Hispanic | 1.52% | 2.19% | 44.08% |
| Two or More Races | 1.16% | 1.76% | 51.72% |
| Asian/Pacific Islander | 0% | 1.4% | 0% |
| Black | 0.81% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |