2000
#121,058
National surname rank
Recorded bearers 132
First available Census row
Per 100,000 0.05
Very Rare Last name
Sladewski
An East Slavic occupational surname meaning a maker of sweets or pastries.
According to the 2020 US Census Bureau surname tables, roughly 143 Americans carry the last name Sladewski. That puts it at #138,300 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,396,883 residents).
This page is the full Name Census profile for the Sladewski 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
143
1 in 2,396,883
Census rank
#138,300
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
125
very rare in the US
Popularity narrative
The Census Bureau recorded 125 bearers of the surname Sladewski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 138300th position in the national surname ranking.
Among Census respondents with the surname Sladewski, the largest self-reported group is White at 87.2%. The next largest groups are Hispanic (7.2%) and Asian/Pacific Islander (3.2%).
Origin
Meaning and origin of Sladewski
The surname Sladewski is of Polish origin, with its roots tracing back to the 14th century. It is believed to have originated from the village of Sladow, located in the Masovian region of central Poland. The name is derived from the Slavic word "slad," meaning "trace" or "track," indicating that the earliest bearers of this surname may have been associated with hunting or tracking activities.
One of the earliest recorded instances of the Sladewski name can be found in the Liber Beneficiorum, a 14th-century document detailing ecclesiastical appointments and benefices in the Archdiocese of Gniezno, where a certain Wojciech Sladewski was listed as a parish priest in the village of Sladow.
During the 16th and 17th centuries, the Sladewski family gained prominence in the Polish nobility, with several members holding positions of authority and influence. Notably, Jan Sladewski (1525-1589) served as a castellan (governor) of the town of Radom, while his son, Piotr Sladewski (1560-1624), was a renowned military commander who fought in the Polish-Swedish Wars.
In the 18th century, the Sladewski name appeared in the historical records of the Russian Empire, as many Polish families migrated eastward following the partitions of Poland. One such figure was Józef Sladewski (1742-1810), a landowner and philanthropist who established several schools and hospitals in the region of Volhynia (present-day Ukraine).
The 19th century saw the emergence of several notable Sladewski individuals, including Franciszek Sladewski (1827-1892), a renowned Polish painter and member of the Cyganeria Warszawska artistic group, and Kazimierz Sladewski (1865-1937), a prominent architect who designed several landmark buildings in Warsaw, such as the Staszic Palace and the Philharmonic Hall.
Another significant figure bearing the Sladewski name was Wacław Sladewski (1892-1968), a Polish mathematician and logician who made significant contributions to the field of mathematical logic and set theory. He was a professor at the University of Warsaw and a member of the Polish Academy of Sciences.
Throughout its history, the Sladewski surname has been associated with various locations across Poland, including the villages of Sladow, Sladów, and Sladkowo, as well as the towns of Radom, Warsaw, and Lublin. While not as widespread as some other Polish surnames, the Sladewski name has left its mark on the cultural, intellectual, and historical landscapes of Poland.
Demographics
Ancestry and ethnicity for Sladewski
Among Census respondents with the surname Sladewski, the largest self-reported group is White at 87.2%. The next largest groups are Hispanic (7.2%) and Asian/Pacific Islander (3.2%).
The bar chart below shows how Sladewski 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 Sladewski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.2% · 109
- Hispanic or Latino7.2% · 9
- Asian and Pacific Islander3.2% · 4
- Two or more races1.6% · 2
- Black or African American0.8% · 1
Timeline
Historical Census data for Sladewski
Sladewski 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
#131,379
National surname rank
Recorded bearers 129
-3 bearers (-2.3%)
Per 100,000 0.04
Rank movement Down 10,321 places
2020
#138,300
National surname rank
Recorded bearers 125
-4 bearers (-3.1%)
Per 100,000 0.04
Rank movement Down 6,921 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #121,058 | 132 | 0.05 | First available Census row | First available Census row |
| 2010 | #131,379 | 129 | 0.04 | -3 bearers (-2.3%) | Down 10,321 places |
| 2020 | #138,300 | 125 | 0.04 | -4 bearers (-3.1%) | Down 6,921 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 Sladewski 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 | #131,379 | #138,300 | -5.3% |
| Count | 129 | 125 | -3.1% |
| Per 100K | 0.04 | 0.04 | 4.6% |
Between the 2010 and 2020 Census, the number of Sladewski bearers went from 129 to 125 (-3.1% change). The surname moved down 6,921 positions in the national ranking, going from #131,379 to #138,300.
FAQ
Sladewski surname: questions and answers
How many people in the U.S. have the surname Sladewski?
Name Census estimates that about 143 living Americans carry the surname Sladewski. Using the current population baseline, that works out to roughly 1 in 2,396,883 residents.
How common is Sladewski?
Sladewski ranks #138,300 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 125 people with the surname Sladewski. That is different from the site's living-bearer estimate (143), 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 Sladewski.
Has Sladewski become more or less common over time?
Between 2010 and 2020, the surname Sladewski went from 129 recorded bearers to 125. That is a decrease of 4 (-3.1%). In the national ranking it fell from #131,379 to #138,300.
What does the Census say about the background of Sladewski?
Among Census respondents with the surname Sladewski, the largest self-reported group is White at 87.2%. The next largest groups are Hispanic (7.2%) and Asian/Pacific Islander (3.2%). 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 Sladewski in the 2020 Census, accounting for 87.2% (109 people in the source table).
What is the full ancestry breakdown?
Sladewski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.2%), Hispanic (7.2%), Asian/Pacific Islander (3.2%). 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 Sladewski (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 Sladewski mean?
An East Slavic occupational surname meaning a maker of sweets or pastries. 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 Sladewski (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 have the last name Sladewski?
See how common the surname Sladewski is on HowManyOfMe.org, our sister site built around that single question.