Explore the Family Name Lach

The meaning of Lach

1. Ukrainian, Belorussian, and Polish: ethnic name from East Slavic Lach ‘Pole’. This term is used in Czech and Slovak to denote the inhabitants of the northeastern part of Moravia, near the Polish border. 2. German: topographic name from Middle High German lāche ‘boundary marker’ or lache ‘pond’, or from a place called with either of these words. 3. Germanized form of Slovenian Lah. Some characteristic forenames: Polish Cazimir, Danuta, Eugeniusz, Ignatius, Jozef, Jozefa, Krystyna, Mieczyslaw, Ryszard, Slawomir, Wladyslawa, Wojtek.

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

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

Based on the Decennial U.S. Census data, the surname Lach has seen a slight decrease in popularity from 2000 to 2010, with its rank slipping by 1.49% from 12,181 to 12,362. However, the total count of individuals with this surname increased by 7.25%, from 2,345 in 2000 to 2,515 in 2010. Proportionally, the surname Lach decreased by 2.3% per 100,000 people from 2000 to 2010, indicating that while the absolute number of people with this surname increased, it became slightly less common relative to other surnames.

20002010Change
Rank#12,181#12,362-1.49%
Count2,3452,5157.25%
Proportion per 100k0.870.85-2.3%

Race and Ethnicity of people with the last name Lach

The ethnic identity associated with the surname Lach also experienced changes between 2000 and 2010, according to the Decennial U.S. Census data. The percentage of individuals identifying as Asian/Pacific Islander increased significantly by 23.64%, from 10.45% to 12.92%. There was also a notable increase of 75.32% within the Hispanic community, from 1.54% to 2.70%. In contrast, there was a significant decrease of 41.61% among those identifying as Two or more races, from 1.49% to 0.87%. Meanwhile, the proportion of individuals identifying as White dropped slightly by 2.89% from 85.12% to 82.66%. The percentages for Black and American Indian and Alaskan Native remained unchanged at 0%.

20002010Change
White85.12%82.66%-2.89%
Asian/Pacific Islander10.45%12.92%23.64%
Hispanic1.54%2.7%75.32%
Two or More Races1.49%0.87%-41.61%
Black0%0%0%
American Indian and Alaskan Native0%0%0%