2000
#121,780
National surname rank
Recorded bearers 131
First available Census row
Per 100,000 0.05
Very Rare Last name
Dejewski
A Polish surname derived from the term "dej" meaning a plot of land.
According to the 2020 US Census Bureau surname tables, roughly 138 Americans carry the last name Dejewski. That puts it at #142,049 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,483,727 residents).
This page is the full Name Census profile for the Dejewski 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
138
1 in 2,483,727
Census rank
#142,049
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
120
very rare in the US
Popularity narrative
The Census Bureau recorded 120 bearers of the surname Dejewski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142049th position in the national surname ranking.
Among Census respondents with the surname Dejewski, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (5.0%) and Two or More Races (1.7%).
Origin
Meaning and origin of Dejewski
The surname DEJEWSKI is of Polish origin, tracing its roots back to the 16th century. It is believed to have originated from the region of Mazovia, located in central Poland. The name is derived from the Polish word "dej," which means "to give" or "to present," suggesting that the original bearer may have been a generous or charitable individual.
One of the earliest recorded instances of the DEJEWSKI name can be found in the parish records of the town of Płock, dating back to the late 1500s. These records document the presence of a family with this surname, indicating their residence in the area at that time.
In the 17th century, a notable figure with the DEJEWSKI surname was Jan DEJEWSKI, a prominent landowner and local official in the town of Gostynin. His involvement in the administration of the region and his influence as a landowner suggest that the DEJEWSKI family held a respectable position within the community.
The 18th century saw the rise of Franciszek DEJEWSKI, a renowned scholar and philosopher. Born in 1725, Franciszek made significant contributions to the field of ethics and moral philosophy through his writings and teachings. His work was widely recognized and influential during the Polish Enlightenment period.
In the 19th century, the DEJEWSKI name gained further prominence with the birth of Józef DEJEWSKI in 1820. Józef was a celebrated artist and painter, known for his exquisite landscapes and portraits. His works were exhibited throughout Poland and gained him widespread recognition within the artistic community.
Another notable figure from this era was Zofia DEJEWSKA, born in 1845. Zofia was a pioneering educator and advocate for women's rights. She established one of the first schools for girls in Warsaw and played a crucial role in promoting education and empowerment for women in Poland.
Throughout the centuries, the DEJEWSKI surname has been associated with various professions, from landowners and officials to scholars, artists, and educators. While the name may have evolved in its spelling or pronunciation over time, its Polish roots and historical significance have remained intact.
Demographics
Ancestry and ethnicity for Dejewski
Among Census respondents with the surname Dejewski, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (5.0%) and Two or More Races (1.7%).
The bar chart below shows how Dejewski 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 Dejewski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.5% · 111
- Hispanic or Latino5.0% · 6
- Two or more races1.7% · 2
- Asian and Pacific Islander0.8% · 1
Timeline
Historical Census data for Dejewski
Dejewski 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
#123,064
National surname rank
Recorded bearers 140
+9 bearers (+6.9%)
Per 100,000 0.05
Rank movement Down 1,284 places
2020
#142,049
National surname rank
Recorded bearers 120
-20 bearers (-14.3%)
Per 100,000 0.04
Rank movement Down 18,985 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #121,780 | 131 | 0.05 | First available Census row | First available Census row |
| 2010 | #123,064 | 140 | 0.05 | +9 bearers (+6.9%) | Down 1,284 places |
| 2020 | #142,049 | 120 | 0.04 | -20 bearers (-14.3%) | Down 18,985 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 Dejewski 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 | #123,064 | #142,049 | -15.4% |
| Count | 140 | 120 | -14.3% |
| Per 100K | 0.05 | 0.04 | -19.7% |
Between the 2010 and 2020 Census, the number of Dejewski bearers went from 140 to 120 (-14.3% change). The surname moved down 18,985 positions in the national ranking, going from #123,064 to #142,049.
FAQ
Dejewski surname: questions and answers
How many people in the U.S. have the surname Dejewski?
Name Census estimates that about 138 living Americans carry the surname Dejewski. Using the current population baseline, that works out to roughly 1 in 2,483,727 residents.
How common is Dejewski?
Dejewski ranks #142,049 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 120 people with the surname Dejewski. That is different from the site's living-bearer estimate (138), 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 Dejewski.
Has Dejewski become more or less common over time?
Between 2010 and 2020, the surname Dejewski went from 140 recorded bearers to 120. That is a decrease of 20 (-14.3%). In the national ranking it fell from #123,064 to #142,049.
What does the Census say about the background of Dejewski?
Among Census respondents with the surname Dejewski, the largest self-reported group is White at 92.5%. The next largest groups are Hispanic (5.0%) and Two or More Races (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 Dejewski in the 2020 Census, accounting for 92.5% (111 people in the source table).
What is the full ancestry breakdown?
Dejewski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.5%), Hispanic (5.0%), Two or More Races (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 Dejewski (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 Dejewski mean?
A Polish surname derived from the term "dej" meaning a plot of land. 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 Dejewski (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 share the surname Dejewski?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.