2000
#146,011
National surname rank
Recorded bearers 104
First available Census row
Per 100,000 0.04
Very Rare Last name
Tomczuk
A surname of Polish origin meaning "son of Tomasz (Thomas)".
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Tomczuk. That puts it at #150,205 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,742,035 residents).
This page is the full Name Census profile for the Tomczuk 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
125
1 in 2,742,035
Census rank
#150,205
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
109
very rare in the US
Popularity narrative
The Census Bureau recorded 109 bearers of the surname Tomczuk in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150205th position in the national surname ranking.
Among Census respondents with the surname Tomczuk, the largest self-reported group is White at 92.7%. The next largest groups are Two or More Races (2.8%) and Hispanic (1.8%).
Origin
Meaning and origin of Tomczuk
The surname Tomczuk is of Polish origin, tracing its roots back to the 17th century. It is derived from the Polish patronymic form "Tomczyk," which means "son of Tomek," a diminutive form of the given name Tomasz (Thomas). The name Tomasz itself comes from the Aramaic name Toma, meaning "twin."
The earliest recorded instances of the name Tomczuk can be found in various historical documents from the regions of Lesser Poland and Masovia in Poland. One notable example is Jan Tomczuk, a Polish nobleman born in 1623, who was mentioned in the records of the Kraków Voivodeship.
The name Tomczuk has also been documented in various village and town records from the 16th to 19th centuries, with variations in spelling such as Tomczyk, Tomczik, and Tomczuch. These variations likely arose due to regional dialects and the evolving nature of the Polish language over time.
In the 18th century, a notable figure bearing the surname Tomczuk was Michał Tomczuk, a Polish painter and engraver born in 1742 in the town of Lublin. His works were heavily influenced by the Baroque and Rococo styles, and he is known for his religious paintings and engravings adorning churches throughout Poland.
Another historical figure with the surname Tomczuk was Józef Tomczuk, a Polish military officer who fought in the November Uprising against the Russian Empire in 1830-1831. He was born in 1798 in the village of Wola Tomczycka and served with distinction during the uprising, ultimately achieving the rank of Captain.
In the 19th century, the name Tomczuk also appeared in the records of Polish immigrants to the United States and Canada. One notable example is Stanisław Tomczuk, a Polish-American architect born in 1860 in Kraków. He immigrated to the United States in the late 19th century and designed several notable buildings in Chicago, including the Assumption of the Blessed Virgin Mary Roman Catholic Church.
Throughout its history, the surname Tomczuk has been associated with various professions and social classes, from noblemen and military officers to artisans and immigrants seeking new opportunities in the Americas.
Demographics
Ancestry and ethnicity for Tomczuk
Among Census respondents with the surname Tomczuk, the largest self-reported group is White at 92.7%. The next largest groups are Two or More Races (2.8%) and Hispanic (1.8%).
The bar chart below shows how Tomczuk 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 Tomczuk surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.7% · 101
- Two or more races2.8% · 3
- Hispanic or Latino1.8% · 2
- Asian and Pacific Islander1.8% · 2
- Black or African American0.9% · 1
Timeline
Historical Census data for Tomczuk
Tomczuk 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
#139,228
National surname rank
Recorded bearers 120
+16 bearers (+15.4%)
Per 100,000 0.04
Rank movement Up 6,783 places
2020
#150,205
National surname rank
Recorded bearers 109
-11 bearers (-9.2%)
Per 100,000 0.04
Rank movement Down 10,977 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #146,011 | 104 | 0.04 | First available Census row | First available Census row |
| 2010 | #139,228 | 120 | 0.04 | +16 bearers (+15.4%) | Up 6,783 places |
| 2020 | #150,205 | 109 | 0.04 | -11 bearers (-9.2%) | Down 10,977 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 Tomczuk 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 | #139,228 | #150,205 | -7.9% |
| Count | 120 | 109 | -9.2% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Tomczuk bearers went from 120 to 109 (-9.2% change). The surname moved down 10,977 positions in the national ranking, going from #139,228 to #150,205.
FAQ
Tomczuk surname: questions and answers
How many people in the U.S. have the surname Tomczuk?
Name Census estimates that about 125 living Americans carry the surname Tomczuk. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
How common is Tomczuk?
Tomczuk ranks #150,205 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 109 people with the surname Tomczuk. That is different from the site's living-bearer estimate (125), 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 Tomczuk.
Has Tomczuk become more or less common over time?
Between 2010 and 2020, the surname Tomczuk went from 120 recorded bearers to 109. That is a decrease of 11 (-9.2%). In the national ranking it fell from #139,228 to #150,205.
What does the Census say about the background of Tomczuk?
Among Census respondents with the surname Tomczuk, the largest self-reported group is White at 92.7%. The next largest groups are Two or More Races (2.8%) and Hispanic (1.8%). 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 Tomczuk in the 2020 Census, accounting for 92.7% (101 people in the source table).
What is the full ancestry breakdown?
Tomczuk appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.7%), Two or More Races (2.8%), Hispanic (1.8%). 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 Tomczuk (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 Tomczuk mean?
A surname of Polish origin meaning "son of Tomasz (Thomas)". 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 Tomczuk (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 common is the surname Tomczuk?
If you just want to know how many people have the last name Tomczuk, HowManyOfMe.org gives you the headline number in one glance.