2000
#105,374
National surname rank
Recorded bearers 157
First available Census row
Per 100,000 0.06
Very Rare Last name
Sielicki
A Polish surname derived from the word "siela", meaning ambush or trap.
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Sielicki. 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 Sielicki 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 Sielicki 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 Sielicki, the largest self-reported group is White at 93.2%. The next largest groups are Two or More Races (3.4%) and Hispanic (2.6%).
Origin
Meaning and origin of Sielicki
The surname Sielicki is of Polish origin, with its roots dating back to the 15th century. The name is derived from the Polish word "sielić się," which means "to settle" or "to establish a settlement." This suggests that the name may have originated from a family or individual who settled in a particular area or established a new village or town.
The earliest recorded instances of the name Sielicki can be found in historical documents from the region of Silesia, a province that was once part of Poland but is now divided between Poland and the Czech Republic. Some of the earliest known bearers of the name include Jan Sielicki, a landowner who lived in the town of Bytom in the late 15th century, and Mikołaj Sielicki, a merchant from Wrocław (known as Breslau in German) who was mentioned in records from the early 16th century.
During the 16th and 17th centuries, the Sielicki name appeared in various records throughout Poland, including tax registers, land deeds, and parish records. One notable figure from this period was Andrzej Sielicki (c. 1570-1635), a Polish nobleman and military leader who served in the Polish-Lithuanian Commonwealth and participated in several wars against Sweden and Russia.
In the 18th century, the Sielicki name continued to be found in various regions of Poland, with some families emigrating to other parts of Europe and North America. One such individual was Franciszek Sielicki (1761-1832), a Polish artist and painter who spent much of his life working in Italy and is known for his religious and historical paintings.
As the Sielicki name spread across different regions, it also evolved into various spelling variations, such as Sielitzki, Sielitsky, and Sielitski. One notable bearer of the latter variation was Władysław Sielitski (1880-1957), a Polish military officer and diplomat who served as the Polish ambassador to the United States in the 1930s.
Throughout history, there have been several other individuals with the Sielicki surname who have made significant contributions in various fields, including academia, literature, and the arts. For example, Bronisław Sielicki (1877-1943) was a Polish linguist and scholar who specialized in Slavic languages, while Tadeusz Sielicki (1914-1988) was a renowned Polish poet and writer known for his works on rural life and the natural world.
Demographics
Ancestry and ethnicity for Sielicki
Among Census respondents with the surname Sielicki, the largest self-reported group is White at 93.2%. The next largest groups are Two or More Races (3.4%) and Hispanic (2.6%).
The bar chart below shows how Sielicki 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 Sielicki surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.2% · 109
- Two or more races3.4% · 4
- Hispanic or Latino2.6% · 3
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Sielicki
Sielicki 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
#116,829
National surname rank
Recorded bearers 149
-8 bearers (-5.1%)
Per 100,000 0.05
Rank movement Down 11,455 places
2020
#144,270
National surname rank
Recorded bearers 117
-32 bearers (-21.5%)
Per 100,000 0.04
Rank movement Down 27,441 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #105,374 | 157 | 0.06 | First available Census row | First available Census row |
| 2010 | #116,829 | 149 | 0.05 | -8 bearers (-5.1%) | Down 11,455 places |
| 2020 | #144,270 | 117 | 0.04 | -32 bearers (-21.5%) | Down 27,441 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 Sielicki 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 | #116,829 | #144,270 | -23.5% |
| Count | 149 | 117 | -21.5% |
| Per 100K | 0.05 | 0.04 | -21.7% |
Between the 2010 and 2020 Census, the number of Sielicki bearers went from 149 to 117 (-21.5% change). The surname moved down 27,441 positions in the national ranking, going from #116,829 to #144,270.
FAQ
Sielicki surname: questions and answers
How many people in the U.S. have the surname Sielicki?
Name Census estimates that about 134 living Americans carry the surname Sielicki. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Sielicki?
Sielicki 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 Sielicki. 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 Sielicki.
Has Sielicki become more or less common over time?
Between 2010 and 2020, the surname Sielicki went from 149 recorded bearers to 117. That is a decrease of 32 (-21.5%). In the national ranking it fell from #116,829 to #144,270.
What does the Census say about the background of Sielicki?
Among Census respondents with the surname Sielicki, the largest self-reported group is White at 93.2%. The next largest groups are Two or More Races (3.4%) and Hispanic (2.6%). 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 Sielicki in the 2020 Census, accounting for 93.2% (109 people in the source table).
What is the full ancestry breakdown?
Sielicki appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.2%), Two or More Races (3.4%), Hispanic (2.6%). 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 Sielicki (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 Sielicki mean?
A Polish surname derived from the word "siela", meaning ambush or trap. 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 Sielicki (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 are called Sielicki?
You can see how many people have the surname Sielicki on our sister site HowManyOfMe.org — same data roots, lighter UI.