2000
#132,259
National surname rank
Recorded bearers 118
First available Census row
Per 100,000 0.04
Very Rare Last name
Lazansky
A surname of Slavic origin possibly derived from a place name.
According to the 2020 US Census Bureau surname tables, roughly 132 Americans carry the last name Lazansky. That puts it at #145,757 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,596,624 residents).
This page is the full Name Census profile for the Lazansky surname. You will find the Census Bureau frequency data, a multi-census history view, an ancestry and ethnicity breakdown based on self-reported demographics, the name's meaning and origin where available, and answers to the most common questions people ask about this surname.
Bearers in the US
132
1 in 2,596,624
Census rank
#145,757
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
115
very rare in the US
Popularity narrative
The Census Bureau recorded 115 bearers of the surname Lazansky in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145757th position in the national surname ranking.
Among Census respondents with the surname Lazansky, the largest self-reported group is White at 89.6%. The next largest groups are Hispanic (7.0%) and Two or More Races (3.5%).
Origin
Meaning and origin of Lazansky
The surname Lazansky is of Slavic origin, with roots that can be traced back to the Czech Republic and Slovakia. It likely emerged in the 13th or 14th century, derived from the Slavic word "laz," which referred to a forest clearing or a patch of cultivated land within a wooded area.
One of the earliest known references to the Lazansky name can be found in a 15th-century document from the town of Brno, in what is now the Czech Republic. This document mentions a family bearing the name Lazanski, suggesting that the surname had already been established by that time.
During the 16th and 17th centuries, the name Lazansky began to appear more frequently in records across various regions of the Czech lands and Slovakia. It is believed that many Lazansky families were involved in agriculture or forestry, which would align with the original meaning of the name.
In the 18th century, a notable figure bearing the Lazansky surname was Jan Lazansky, a Czech composer and organist who lived from 1707 to 1778. His contributions to the musical culture of the time were significant, and his works are still studied and performed today.
Another prominent individual with the Lazansky name was Frantisek Lazansky, a Czech painter and illustrator who was born in 1856 and died in 1917. He was renowned for his landscapes and portraiture, and his works can be found in several notable art collections across Europe.
Towards the end of the 19th century, the Lazansky surname began to spread beyond the borders of the Czech lands and Slovakia as families emigrated to other parts of Europe and the Americas. One such individual was Josef Lazansky, a Czech-American architect who was born in 1868 and lived until 1957. He was responsible for designing several notable buildings in New York City, including the Bronx County Courthouse.
In the early 20th century, a notable figure was Karel Lazansky, a Czech politician and lawyer who played a significant role in the establishment of the independent Czechoslovak state after World War I. He served as the first Prime Minister of Czechoslovakia from 1918 to 1919.
While the Lazansky surname has its origins in the Czech Republic and Slovakia, it has since spread to various parts of the world, carried by families who have emigrated over the centuries. Despite its geographic dispersion, the name retains its connection to its Slavic roots and the historical significance it holds in the regions where it first emerged.
Demographics
Ancestry and ethnicity for Lazansky
Among Census respondents with the surname Lazansky, the largest self-reported group is White at 89.6%. The next largest groups are Hispanic (7.0%) and Two or More Races (3.5%).
The bar chart below shows how Lazansky bearers described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given surname, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown for every Census year so the breakdown stays comparable over time. When the source file also includes raw headcounts, Name Census shows those alongside the percentages in the legend.
Keep in mind that these are self-reported numbers. A person's surname does not determine their race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the Lazansky surname at the time of the 2020 Census, not any inherent property of the name itself.
- White89.6% · 103
- Hispanic or Latino7.0% · 8
- Two or more races3.5% · 4
Timeline
Historical Census data for Lazansky
Lazansky appears in 3 published Census surname files: 2000, 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2010
#149,395
National surname rank
Recorded bearers 110
-8 bearers (-6.8%)
Per 100,000 0.04
Rank movement Down 17,136 places
2020
#145,757
National surname rank
Recorded bearers 115
+5 bearers (+4.5%)
Per 100,000 0.04
Rank movement Up 3,638 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #132,259 | 118 | 0.04 | First available Census row | First available Census row |
| 2010 | #149,395 | 110 | 0.04 | -8 bearers (-6.8%) | Down 17,136 places |
| 2020 | #145,757 | 115 | 0.04 | +5 bearers (+4.5%) | Up 3,638 places |
For 2020, the Census Bureau published race and Hispanic-origin columns as counts rather than percentages. Name Census converts those counts back into shares so the ancestry section stays comparable with the older surname files.
Year on year
2010 vs 2020 Census
How has the Lazansky surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
20102020
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #149,395 | #145,757 | 2.4% |
| Count | 110 | 115 | 4.5% |
| Per 100K | 0.04 | 0.04 | -3.8% |
Between the 2010 and 2020 Census, the number of Lazansky bearers went from 110 to 115 (+4.5% change). The surname moved up 3,638 positions in the national ranking, going from #149,395 to #145,757.
FAQ
Lazansky surname: questions and answers
How many people in the U.S. have the surname Lazansky?
Name Census estimates that about 132 living Americans carry the surname Lazansky. Using the current population baseline, that works out to roughly 1 in 2,596,624 residents.
How common is Lazansky?
Lazansky ranks #145,757 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 115 people with the surname Lazansky. That is different from the site's living-bearer estimate (132), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 0 of them to have the surname Lazansky.
Has Lazansky become more or less common over time?
Between 2010 and 2020, the surname Lazansky went from 110 recorded bearers to 115. That is an increase of 5 (+4.5%). In the national ranking it rose from #149,395 to #145,757.
What does the Census say about the background of Lazansky?
Among Census respondents with the surname Lazansky, the largest self-reported group is White at 89.6%. The next largest groups are Hispanic (7.0%) and Two or More Races (3.5%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Which group reports this surname most often?
White is the largest self-reported group for the surname Lazansky in the 2020 Census, accounting for 89.6% (103 people in the source table).
What is the full ancestry breakdown?
Lazansky appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (89.6%), Hispanic (7.0%), Two or More Races (3.5%). For 2020, the source file also published raw headcounts for each group, which is why this page can show both percentages and counts in the ancestry section.
Is this page using the latest Census data?
Yes. This page is using the latest surname file currently loaded on Name Census, which is 2020. The historical section above also keeps any older Census surname entries we have for Lazansky (2000, 2010, 2020).
Does the Census include every surname?
No. The Census Bureau only publishes surnames that appeared at least 100 times in a given decennial Census. That means very rare surnames are excluded entirely, and a surname can appear in one Census release but disappear from a later one if it falls below the reporting threshold.
Why don't the ancestry percentages always add up to exactly 100%?
There are two main reasons: rounding and suppression. The Census Bureau rounds published values, and it may suppress very small cells to protect privacy. For 2020, the Bureau also published raw group counts rather than direct percentages, so Name Census converts those counts back into shares for comparability across census years.
What does Lazansky mean?
A surname of Slavic origin possibly derived from a place name. The fuller origin note on this page goes into more detail.
Where does the surname data come from?
All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These files list every surname that appeared 100 or more times in the 2020 Census, along with a count, a per-100,000 rate, and a self-reported demographic breakdown. You can read the full explanation on our methodology page.
How does Name Census estimate living bearers?
For surnames, Name Census does not age cohorts the way it does for first names. Instead, it takes the Census Bureau's published frequency for Lazansky (0.04 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
How many people have the last name Lazansky?
Our sister site HowManyOfMe.org answers how common the surname Lazansky is at a glance, with the living-bearer count up front.