2000
#127,948
National surname rank
Recorded bearers 123
First available Census row
Per 100,000 0.05
Very Rare Last name
Deleski
A surname likely of Slavic origin from a location or derived from a personal name.
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Deleski. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Deleski 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
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Deleski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Deleski, the largest self-reported group is White at 94.9%. The next largest groups are Two or More Races (4.3%) and Hispanic (0.9%).
Origin
Meaning and origin of Deleski
The surname DELESKI is believed to have originated in Poland, likely during the 16th or 17th century. It is thought to derive from the Polish word "dela", meaning "from the place of". This suggests that the name originally referred to someone who came from a specific location or region.
One of the earliest recorded instances of the name DELESKI can be found in the parish records of the village of Byczyna, in the Opolskie region of southwestern Poland, dating back to the late 1600s. The name was also present in nearby areas such as the towns of Opole and Kluczbork during this time period.
In the 19th century, the DELESKI surname began to appear in historical records from other parts of Eastern Europe, including Ukraine and Belarus. This suggests that individuals bearing this name may have migrated from Poland to these areas, potentially seeking better opportunities or fleeing conflict.
One notable individual with the DELESKI surname was Stanislaw Deleski, a Polish military officer who fought in the Napoleonic Wars during the early 1800s. He served under the Polish legions that allied with Napoleon's forces and participated in several major battles, including the Battle of Leipzig in 1813.
Another historically significant figure was Aleksandra Deleski, a Polish-born artist and painter who was active in the late 19th century. She is particularly known for her landscapes and portraits, which often depicted scenes from her native Poland.
In the early 20th century, Jan Deleski was a prominent Polish architect who designed several notable buildings in the city of Krakow, including the Church of St. Michael the Archangel and the Staszic Palace, which now houses part of the Jagiellonian University.
Teodor Deleski, born in 1892 in the town of Tomaszów Lubelski, was a Polish writer and journalist who chronicled life in rural Poland during the interwar period. His works provided insights into the struggles and resilience of the Polish people during this tumultuous time.
Finally, Wladyslaw Deleski, a Polish composer and musician, was active in the mid-20th century and is remembered for his contributions to the development of Polish classical music and opera.
Demographics
Ancestry and ethnicity for Deleski
Among Census respondents with the surname Deleski, the largest self-reported group is White at 94.9%. The next largest groups are Two or More Races (4.3%) and Hispanic (0.9%).
The bar chart below shows how Deleski 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 Deleski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.9% · 111
- Two or more races4.3% · 5
- Hispanic or Latino0.9% · 1
Timeline
Historical Census data for Deleski
Deleski 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
#135,593
National surname rank
Recorded bearers 124
+1 bearers (+0.8%)
Per 100,000 0.04
Rank movement Down 7,645 places
2020
#144,270
National surname rank
Recorded bearers 117
-7 bearers (-5.6%)
Per 100,000 0.04
Rank movement Down 8,677 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #127,948 | 123 | 0.05 | First available Census row | First available Census row |
| 2010 | #135,593 | 124 | 0.04 | +1 bearers (+0.8%) | Down 7,645 places |
| 2020 | #144,270 | 117 | 0.04 | -7 bearers (-5.6%) | Down 8,677 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 Deleski 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 | #135,593 | #144,270 | -6.4% |
| Count | 124 | 117 | -5.6% |
| Per 100K | 0.04 | 0.04 | -2.1% |
Between the 2010 and 2020 Census, the number of Deleski bearers went from 124 to 117 (-5.6% change). The surname moved down 8,677 positions in the national ranking, going from #135,593 to #144,270.
FAQ
Deleski surname: questions and answers
How many people in the U.S. have the surname Deleski?
Name Census estimates that about 134 living Americans carry the surname Deleski. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Deleski?
Deleski ranks #144,270 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 117 people with the surname Deleski. That is different from the site's living-bearer estimate (134), 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 Deleski.
Has Deleski become more or less common over time?
Between 2010 and 2020, the surname Deleski went from 124 recorded bearers to 117. That is a decrease of 7 (-5.6%). In the national ranking it fell from #135,593 to #144,270.
What does the Census say about the background of Deleski?
Among Census respondents with the surname Deleski, the largest self-reported group is White at 94.9%. The next largest groups are Two or More Races (4.3%) and Hispanic (0.9%). 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 Deleski in the 2020 Census, accounting for 94.9% (111 people in the source table).
What is the full ancestry breakdown?
Deleski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.9%), Two or More Races (4.3%), Hispanic (0.9%). 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 Deleski (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 Deleski mean?
A surname likely of Slavic origin from a location or derived from a personal name. 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 Deleski (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 Deleski?
For a quick modern take, check how many people have the surname Deleski on our sister site HowManyOfMe.org.