Explore the Family Name Koltz
The meaning of Koltz
1. German: variant of Kolz 1 and, in North America, (also) an altered form of this. 2. German (Költz): variant of Kölz (see Kolz 2).
Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.
How common is the last name Koltz in the United States?
Based on the Decennial U.S. Census, the popularity of the surname Koltz displayed a minor decrease in rank from 47,389 in 2000 to 48,347 in 2010, which indicates a change of -2.02%. However, despite its drop in rank, the count of individuals bearing the Koltz surname surprisingly increased by 3.8% from 421 in 2000 to 437 in 2010. The proportion per 100k also decreased slightly from 0.16 in 2000 to 0.15 in 2010, reflecting a -6.25% change.
| 2000 | 2010 | Change | |
|---|---|---|---|
| Rank | #47,389 | #48,347 | -2.02% |
| Count | 421 | 437 | 3.8% |
| Proportion per 100k | 0.16 | 0.15 | -6.25% |
Race and Ethnicity of people with the last name Koltz
In relation to ethnicity, the data from the Decennial U.S. Census reveals that the majority of individuals carrying the Koltz surname identify as White. In 2000, this group accounted for 97.62% and slightly dropped to 96.80% in 2010, marking a small change of -0.84%. The percentage of those identifying as Hispanic was 1.19% in 2000 but was reported as zero in 2010. There were no reported changes in other ethnic identities such as Asian/Pacific Islander, Black, American Indian and Alaskan Native, or those identifying with two or more races between these two censuses.
| 2000 | 2010 | Change | |
|---|---|---|---|
| White | 97.62% | 96.8% | -0.84% |
| Asian/Pacific Islander | 0% | 0% | 0% |
| Two or More Races | 0% | 0% | 0% |
| Hispanic | 1.19% | 0% | 0% |
| Black | 0% | 0% | 0% |
| American Indian and Alaskan Native | 0% | 0% | 0% |