2000
#140,756
National surname rank
Recorded bearers 109
First available Census row
Per 100,000 0.04
Very Rare Last name
Jaworowicz
A surname of Polish origin referring to someone from the town of Jawor.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Jaworowicz. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Jaworowicz 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
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Jaworowicz in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Jaworowicz, the largest self-reported group is White at 98.1%. The next largest groups are American Indian/Alaska Native (1.9%).
Origin
Meaning and origin of Jaworowicz
The surname Jaworowicz originated in Poland, likely in the late medieval period or early modern era. It is a toponymic surname, derived from a place name, most likely the town of Jaworów in the Lviv Oblast region of modern-day Ukraine. This region was historically part of the Polish-Lithuanian Commonwealth.
The name is thought to be derived from the Polish word "jawor," meaning "sycamore tree." This suggests that the original bearer of the name may have lived near a sycamore tree or in an area where sycamores were abundant. Variations in spelling over time may have included Jaworow, Jaworowski, and Jaworowicz.
One of the earliest recorded instances of the name Jaworowicz appears in the 16th century, with a reference to a Stanisław Jaworowicz, a Polish nobleman and landowner from the Lwów region. In the 17th century, a Mikołaj Jaworowicz is mentioned in records as a prominent merchant and trader in the city of Kraków.
During the 18th century, a Franciszek Jaworowicz gained recognition as a skilled military engineer and architect, responsible for the design and construction of several fortifications and defensive structures in the Polish-Lithuanian Commonwealth.
In the 19th century, a notable figure was Józef Jaworowicz, a Polish composer and pianist who was born in 1813 and died in 1892. His compositions, particularly his piano works, were widely acclaimed and performed throughout Europe during his lifetime.
Another individual of significance was Wacław Jaworowicz, a Polish politician and statesman who lived from 1854 to 1924. He served as a member of the Austro-Hungarian Parliament and was a vocal advocate for Polish independence and national interests.
While the Jaworowicz surname is most commonly associated with Poland, it has also been found in other parts of Eastern Europe, particularly in areas that were once part of the Polish-Lithuanian Commonwealth or had significant Polish populations.
Demographics
Ancestry and ethnicity for Jaworowicz
Among Census respondents with the surname Jaworowicz, the largest self-reported group is White at 98.1%. The next largest groups are American Indian/Alaska Native (1.9%).
The bar chart below shows how Jaworowicz 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 Jaworowicz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White98.1% · 101
- American Indian and Alaska Native1.9% · 2
Timeline
Historical Census data for Jaworowicz
Jaworowicz 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
#142,108
National surname rank
Recorded bearers 117
+8 bearers (+7.3%)
Per 100,000 0.04
Rank movement Down 1,352 places
2020
#154,182
National surname rank
Recorded bearers 103
-14 bearers (-12.0%)
Per 100,000 0.03
Rank movement Down 12,074 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #140,756 | 109 | 0.04 | First available Census row | First available Census row |
| 2010 | #142,108 | 117 | 0.04 | +8 bearers (+7.3%) | Down 1,352 places |
| 2020 | #154,182 | 103 | 0.03 | -14 bearers (-12.0%) | Down 12,074 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 Jaworowicz 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 | #142,108 | #154,182 | -8.5% |
| Count | 117 | 103 | -12.0% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Jaworowicz bearers went from 117 to 103 (-12.0% change). The surname moved down 12,074 positions in the national ranking, going from #142,108 to #154,182.
FAQ
Jaworowicz surname: questions and answers
How many people in the U.S. have the surname Jaworowicz?
Name Census estimates that about 118 living Americans carry the surname Jaworowicz. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
How common is Jaworowicz?
Jaworowicz ranks #154,182 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 103 people with the surname Jaworowicz. That is different from the site's living-bearer estimate (118), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Jaworowicz.
Has Jaworowicz become more or less common over time?
Between 2010 and 2020, the surname Jaworowicz went from 117 recorded bearers to 103. That is a decrease of 14 (-12.0%). In the national ranking it fell from #142,108 to #154,182.
What does the Census say about the background of Jaworowicz?
Among Census respondents with the surname Jaworowicz, the largest self-reported group is White at 98.1%. The next largest groups are American Indian/Alaska Native (1.9%). 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 Jaworowicz in the 2020 Census, accounting for 98.1% (101 people in the source table).
What is the full ancestry breakdown?
Jaworowicz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (98.1%), American Indian/Alaska Native (1.9%). 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 Jaworowicz (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 Jaworowicz mean?
A surname of Polish origin referring to someone from the town of Jawor. 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 Jaworowicz (0.03 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 Jaworowicz?
See how common the surname Jaworowicz is on HowManyOfMe.org, our sister site built around that single question.