Explore the Family Name Blach

The meaning of Blach

1. German: probably a descriptive nickname from Middle High German blach ‘flat’, for someone’s appearance (in relation to the face) or topographic place of dwelling. 2. Polish (Błach): from a short form of the personal name Błażej, from Latin Blasius (compare Blaz). Some characteristic forenames: Polish Agnieszka, Andrzej. German Heribert, Siegfried.

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

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

According to the Decennial U.S. Census, the surname Blach experienced a decrease in popularity between 2000 and 2010. In 2000, Blach ranked 55,003 in popularity with 350 recorded instances in the U.S. However, by 2010, the surname had fallen to rank 73,215 with only 265 instances, marking a significant decrease of 24.29%. This shift also corresponds to a drop in the proportion per 100,000 people from 0.13 to 0.09.

	2000	2010	Change
Rank	#55,003	#73,215	-33.11%
Count	350	265	-24.29%
Proportion per 100k	0.13	0.09	-30.77%

Race and Ethnicity of people with the last name Blach

In terms of ethnicity, the data from the Decennial U.S. Census suggests that the majority of individuals with the Blach surname identified as White in both 2000 and 2010, although there was a slight decrease from 92.57% to 92.08% over this period. There was an emergence of Hispanic identification within this surname group, rising from 0% in 2000 to 3.02% in 2010. The percentage who identified as Black decreased significantly from 4.86% in 2000 to 2.64% in 2010. There were no recorded instances of persons with the Blach surname identifying as Asian/Pacific Islander or American Indian and Alaskan Native in either year.

	2000	2010	Change
White	92.57%	92.08%	-0.53%
Hispanic	0%	3.02%	0%
Black	4.86%	2.64%	-45.68%
Asian/Pacific Islander	0%	0%	0%
Two or More Races	0%	0%	0%
American Indian and Alaskan Native	0%	0%	0%