Find out how popular the last name Lach is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Lach.

Lach, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Lach surname is from the 2010 census data.

Popularity of Lach in America

Lach is the 12362nd most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Lach surname appeared 2,515 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 1 people would have the surname Lach.

We can also compare 2010 data for Lach to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

The history of the last name Lach

The surname LACH is believed to have originated in Poland. It is a regional name that derived from the Polish word "lach," which referred to a Pole or someone from Poland. The name can be traced back to the 13th century in historical records.

The earliest known bearer of the name was a Polish nobleman named Lach who lived in the late 13th century. He was mentioned in a manuscript from the year 1278 that documented land ownership in the region of Poznan, which was part of the Kingdom of Poland at that time.

In the 14th century, the name appeared in the form "de Lach" in records from the town of Krakow. This Latin variation likely referred to someone from the village of Lach or a person whose family originated from that area.

One of the earliest known people with the surname LACH was Jan Lach, a merchant who lived in the city of Gdansk in the late 15th century. He was mentioned in a trade document from the year 1487 as having conducted business with merchants from the Hanseatic League.

Another notable bearer of the name was Piotr Lach, a Polish soldier who fought in the Polish-Muscovite War of 1609-1618. He was recognized for his bravery in battle and was awarded lands in the region of Podlasie after the war.

In the 17th century, the name LACH appeared in records from the town of Przemysl, which was part of the Polish-Lithuanian Commonwealth at the time. A family by the name of Lach owned a farm in the area, and their descendants continued to live in the region for several generations.

One of the most famous individuals with the surname LACH was Waclaw Lach, a Polish poet and writer who lived from 1664 to 1728. He was known for his satirical works that criticized the nobility and the political system of the Polish-Lithuanian Commonwealth.

During the 19th century, the name LACH was found in various regions of Poland, including the areas of Galicia, Silesia, and the Grand Duchy of Posen. Some notable people with this surname from that period include Franciszek Lach, a Polish painter born in 1820, and Jozef Lach, a Polish composer born in 1856.

Race and ethnic origin of people with the last name Lach

We also have some data on the ancestry of people with the surname Lach.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:

1. White only
2. Black only
3. American Indian and Alaskan Native only
4. Asian and Pacific Islander only
5. Hispanic
6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Lach was:

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Lach has changed in the 10 years between the two census surveys.

Data source

The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.

The history and meaning of the name Lach was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Lach, please contact us.

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