2010
#153,769
National surname rank
Recorded bearers 106
First available Census row
Per 100,000 0.04
Very Rare Last name
Dlugi
A Polish surname meaning "long" or "tall."
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Dlugi. That puts it at #143,511 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,538,921 residents).
This page is the full Name Census profile for the Dlugi 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
135
1 in 2,538,921
Census rank
#143,511
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
118
very rare in the US
Popularity narrative
The Census Bureau recorded 118 bearers of the surname Dlugi in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 143511th position in the national surname ranking.
Among Census respondents with the surname Dlugi, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (4.2%) and American Indian/Alaska Native (1.7%).
Origin
Meaning and origin of Dlugi
The surname DLUGI is of Polish origin, originating in the late Middle Ages or early modern period. It is derived from the Polish word "długi," meaning "long" or "tall," suggesting that the name may have initially been a descriptive nickname given to someone who was particularly tall or of a lanky stature.
The earliest recorded instances of the DLUGI surname can be traced back to historical records and documents from the 16th and 17th centuries in various regions of Poland. One notable early reference comes from the Krakow Land Records of 1564, where a certain Maciej Dlugi is mentioned as a landowner in the village of Slawkow.
In the 17th century, the DLUGI name appears in the Czestochowa Parish Registers, with the baptismal record of Jan Dlugi in 1632. Another early reference is found in the Poznan Tax Records of 1678, which lists a Bartlomiej Dlugi among the taxpayers in the city.
Throughout the centuries, the DLUGI surname has been associated with several notable individuals. One of the earliest was Stanislaw Dlugi (c. 1550-1628), a Polish nobleman and military commander who fought in the Polish-Swedish War of the early 17th century.
Another prominent figure was Michal Dlugi (1642-1704), a Polish Catholic priest and theologian who served as the rector of the Krakow Academy (now Jagiellonian University) from 1688 to 1690.
In the 19th century, Walenty Dlugi (1810-1879) was a Polish painter and art teacher who studied at the Academy of Fine Arts in Warsaw and is known for his landscapes and genre scenes depicting rural life in Poland.
The early 20th century saw the rise of Wladyslaw Dlugi (1887-1957), a Polish engineer and inventor who held several patents for his innovations in the field of mechanical engineering and contributed to the development of early automotive technologies.
More recently, Krzysztof Dlugi (1950-2016) was a renowned Polish writer and journalist who authored several novels and short story collections, as well as contributing to various literary magazines and newspapers throughout his career.
While the DLUGI surname may have originated as a descriptive nickname, it has since become a well-established Polish surname with a rich history spanning several centuries and encompassing individuals from various walks of life, including nobility, clergy, artists, and intellectuals.
Demographics
Ancestry and ethnicity for Dlugi
Among Census respondents with the surname Dlugi, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (4.2%) and American Indian/Alaska Native (1.7%).
The bar chart below shows how Dlugi 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 Dlugi surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.2% · 110
- Hispanic or Latino4.2% · 5
- American Indian and Alaska Native1.7% · 2
- Two or more races0.8% · 1
Timeline
Historical Census data for Dlugi
Dlugi appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#143,511
National surname rank
Recorded bearers 118
+12 bearers (+11.3%)
Per 100,000 0.04
Rank movement Up 10,258 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #153,769 | 106 | 0.04 | First available Census row | First available Census row |
| 2020 | #143,511 | 118 | 0.04 | +12 bearers (+11.3%) | Up 10,258 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 Dlugi 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 | #153,769 | #143,511 | 6.7% |
| Count | 106 | 118 | 11.3% |
| Per 100K | 0.04 | 0.04 | -1.3% |
Between the 2010 and 2020 Census, the number of Dlugi bearers went from 106 to 118 (+11.3% change). The surname moved up 10,258 positions in the national ranking, going from #153,769 to #143,511.
FAQ
Dlugi surname: questions and answers
How many people in the U.S. have the surname Dlugi?
Name Census estimates that about 135 living Americans carry the surname Dlugi. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
How common is Dlugi?
Dlugi ranks #143,511 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 118 people with the surname Dlugi. That is different from the site's living-bearer estimate (135), 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 Dlugi.
Has Dlugi become more or less common over time?
Between 2010 and 2020, the surname Dlugi went from 106 recorded bearers to 118. That is an increase of 12 (+11.3%). In the national ranking it rose from #153,769 to #143,511.
What does the Census say about the background of Dlugi?
Among Census respondents with the surname Dlugi, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (4.2%) and American Indian/Alaska Native (1.7%). 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 Dlugi in the 2020 Census, accounting for 93.2% (110 people in the source table).
What is the full ancestry breakdown?
Dlugi appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.2%), Hispanic (4.2%), American Indian/Alaska Native (1.7%). 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 Dlugi (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 Dlugi mean?
A Polish surname meaning "long" or "tall." 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 Dlugi (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 are called Dlugi?
For a quick modern take, check how common the surname Dlugi is on our sister site HowManyOfMe.org.