2000
#136,783
National surname rank
Recorded bearers 113
First available Census row
Per 100,000 0.04
Very Rare Last name
Trojanek
A surname derived from the Polish word "Trojan", referring to someone from the city of Troy.
According to the 2020 US Census Bureau surname tables, roughly 128 Americans carry the last name Trojanek. That puts it at #147,954 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,677,768 residents).
This page is the full Name Census profile for the Trojanek 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
128
1 in 2,677,768
Census rank
#147,954
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
112
very rare in the US
Popularity narrative
The Census Bureau recorded 112 bearers of the surname Trojanek in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147954th position in the national surname ranking.
Among Census respondents with the surname Trojanek, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (6.3%) and American Indian/Alaska Native (4.5%).
Origin
Meaning and origin of Trojanek
The surname Trojanek has its origins in Poland, dating back to the 16th century. It is believed to be derived from the Polish word "trojak," which translates to "a three-pronged tool" or "a trident-shaped tool." This suggests that the name may have initially been an occupational surname for someone who worked with such tools or weapons.
The earliest recorded instances of the Trojanek surname can be found in historical documents from the Polish region of Silesia, particularly in the town of Opole. One of the earliest recorded individuals with this surname was Jan Trojanek, a blacksmith who lived in Opole in the late 16th century.
In the 17th century, the Trojanek surname appeared in various parish records and land registries across Poland, indicating its spread throughout the country. Notable individuals from this period include Michał Trojanek, a landowner from the village of Kłobuck, born around 1630, and Katarzyna Trojanek, a prominent figure in the town of Radom, who lived during the late 1600s.
During the 18th century, the Trojanek surname gained further prominence, with several individuals making significant contributions to various fields. One such figure was Józef Trojanek, a renowned scholar and theologian who lived from 1720 to 1795. He was widely recognized for his extensive writings on religious philosophy and his role in shaping the intellectual discourse of the time.
Another notable individual from this period was Stanisław Trojanek, a military officer who served in the Polish-Lithuanian Commonwealth's army during the late 18th century. He played a crucial role in several battles against foreign invaders, earning recognition for his bravery and strategic leadership.
In the 19th century, the Trojanek surname continued to be represented across various professions and regions of Poland. One notable figure was Antoni Trojanek, a celebrated painter who lived from 1835 to 1912. His works, which often depicted rural landscapes and traditional Polish life, have become a part of the country's cultural heritage.
As the Trojanek surname spread throughout Poland and beyond, it also became associated with various place names and regional variations in spelling. For example, in some areas, the name was recorded as "Trojańczyk" or "Trojańczak," reflecting local linguistic variations.
Demographics
Ancestry and ethnicity for Trojanek
Among Census respondents with the surname Trojanek, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (6.3%) and American Indian/Alaska Native (4.5%).
The bar chart below shows how Trojanek 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 Trojanek surname at the time of the 2020 Census, not any inherent property of the name itself.
- White88.4% · 99
- Hispanic or Latino6.3% · 7
- American Indian and Alaska Native4.5% · 5
- Two or more races0.9% · 1
Timeline
Historical Census data for Trojanek
Trojanek 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
-3 bearers (-2.7%)
Per 100,000 0.04
Rank movement Down 12,612 places
2020
#147,954
National surname rank
Recorded bearers 112
+2 bearers (+1.8%)
Per 100,000 0.04
Rank movement Up 1,441 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #136,783 | 113 | 0.04 | First available Census row | First available Census row |
| 2010 | #149,395 | 110 | 0.04 | -3 bearers (-2.7%) | Down 12,612 places |
| 2020 | #147,954 | 112 | 0.04 | +2 bearers (+1.8%) | Up 1,441 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 Trojanek 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 | #147,954 | 1.0% |
| Count | 110 | 112 | 1.8% |
| Per 100K | 0.04 | 0.04 | -6.3% |
Between the 2010 and 2020 Census, the number of Trojanek bearers went from 110 to 112 (+1.8% change). The surname moved up 1,441 positions in the national ranking, going from #149,395 to #147,954.
FAQ
Trojanek surname: questions and answers
How many people in the U.S. have the surname Trojanek?
Name Census estimates that about 128 living Americans carry the surname Trojanek. Using the current population baseline, that works out to roughly 1 in 2,677,768 residents.
How common is Trojanek?
Trojanek ranks #147,954 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 112 people with the surname Trojanek. That is different from the site's living-bearer estimate (128), 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 Trojanek.
Has Trojanek become more or less common over time?
Between 2010 and 2020, the surname Trojanek went from 110 recorded bearers to 112. That is an increase of 2 (+1.8%). In the national ranking it rose from #149,395 to #147,954.
What does the Census say about the background of Trojanek?
Among Census respondents with the surname Trojanek, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (6.3%) and American Indian/Alaska Native (4.5%). 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 Trojanek in the 2020 Census, accounting for 88.4% (99 people in the source table).
What is the full ancestry breakdown?
Trojanek appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.4%), Hispanic (6.3%), American Indian/Alaska Native (4.5%). 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 Trojanek (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 Trojanek mean?
A surname derived from the Polish word "Trojan", referring to someone from the city of Troy. 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 Trojanek (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 Americans have the surname Trojanek?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.