Duzy
A Polish surname derived from the word "duży" meaning large or big.
According to the 2000 US Census Bureau surname tables, roughly 137 Americans carry the last name Duzy. That puts it at #144,908 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,501,856 residents).
This page is the full Name Census profile for the Duzy 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.
Duzy appeared in the 2000 Census surname file but was not included in the published 2020 file. The Census Bureau only publishes surnames with at least 100 recorded bearers, so this usually means the name fell below that threshold.
Bearers in the US
137
1 in 2,501,856
Census rank
#144,908
2000 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
105
very rare in the US
Popularity narrative
The Census Bureau recorded 105 bearers of the surname Duzy in its 2000 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144908th position in the national surname ranking.
Among Census respondents with the surname Duzy, the largest self-reported group is White at 97.1%.
Origin
Meaning and origin of Duzy
The surname Duzy is of Polish origin, tracing back to the region of Eastern Europe. The name likely emerged during the Middle Ages when surnames were becoming more common for identification purposes. The specific regions in Poland where the name was originally found include Masovia and Lesser Poland, known historically for their dense populations and significant contributions to Polish culture and history.
The surname Duzy is derived from the Polish word 'duży', meaning 'big' or 'large'. This could indicate that the name was originally a nickname or descriptive term for a person of significant size or stature within a community. Similar spellings or variations of the surname have been recorded, such as Duży. It is important to note that Polish orthography has remained relatively consistent, so significant changes in spelling over time are uncommon.
Historical references to the surname Duzy appear in various regional records and documents, especially those related to local governance, military conscriptions, and tax lists. An early reference to the name appears in a 14th-century Masovian manuscript, wherein Jan Duzy is mentioned as a landowner who was well-regarded in his community for his size and strength, and his contributions to local defense efforts.
One of the earliest recorded examples of the surname is from the late 14th century when Piotr Duzy, born in 1385, is noted in the annals of Kraków as a merchant dealing in grain and textiles. He was influential in the trade networks that connected Polish cities with other parts of Europe.
In 1523, the records from Poznań mention Katarzyna Duzy, born in 1492, who was involved in the philanthropic activities of the local church, and her works are noted in the ecclesiastical documents of the time. Katarzyna's donations and her sizable estate positioned her as an important figure in local religious circles.
Another notable individual bearing the surname was Stanisław Duzy, born in 1620 and active until his death in 1685. He was a prominent member of the Polish nobility and played a key role in the political affairs of his region, being a staunch supporter of the Polish-Lithuanian Commonwealth.
In the 18th century, records from Lublin highlight the endeavors of Maria Duzy, born in 1754, who was a renowned midwife and healer. Her expertise and compassionate care earned her a significant reputation, and her name appears in various civic and medical documents from that period.
Lastly, in the 19th century, Antoni Duzy, born in 1830, is documented as a participant in the January Uprising of 1863 against the Russian Empire. His efforts and sacrifices are recorded in various military archives, marking him as a patriot and a symbol of resistance in Polish history.
These references demonstrate the surname Duzy's long-standing presence in Polish history and its association with individuals who made notable contributions in various fields, from trade and politics to philanthropy and healthcare.
Demographics
Ancestry and ethnicity for Duzy
Among Census respondents with the surname Duzy, the largest self-reported group is White at 97.1%.
The bar chart below shows how Duzy bearers described their own race and ethnicity on the 2000 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 Duzy surname at the time of the 2000 Census, not any inherent property of the name itself.
- White97.1%
- Unknown or suppressed2.9%
FAQ
Duzy surname: questions and answers
How many people in the U.S. have the surname Duzy?
Name Census estimates that about 137 living Americans carry the surname Duzy. Using the current population baseline, that works out to roughly 1 in 2,501,856 residents.
How common is Duzy?
Duzy ranks #144,908 in the 2000 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 2000 Census file counted 105 people with the surname Duzy. That is different from the site's living-bearer estimate (137), 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 Duzy.
Has Duzy become more or less common over time?
Duzy appears here with 2000 Census data. When additional surname-file years are available for this name, Name Census uses them to show longer-term movement in rank and bearer count.
What does the Census say about the background of Duzy?
Among Census respondents with the surname Duzy, the largest self-reported group is White at 97.1%. These figures come from the 2000 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 Duzy in the 2000 Census, accounting for 97.1%.
What is the full ancestry breakdown?
Duzy appears across multiple self-reported groups in the Census data. The largest shares in the 2000 file are White (97.1%).
Is this page using the latest Census data?
Not necessarily. Duzy appears here with 2000 Census data, while the latest surname file loaded on Name Census is 2020. When a surname drops below the Census publication threshold, older rows can still be kept for historical reference even if the name no longer appears in the newest file.
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 Duzy mean?
A Polish surname derived from the word "duży" meaning large or big. 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 2000 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 Duzy (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 surname Duzy?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.