2000
#126,400
National surname rank
Recorded bearers 125
First available Census row
Per 100,000 0.05
Very Rare Last name
Rydzinski
A surname of Polish origin meaning "reddish" or "red-haired".
According to the 2020 US Census Bureau surname tables, roughly 132 Americans carry the last name Rydzinski. That puts it at #145,757 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,596,624 residents).
This page is the full Name Census profile for the Rydzinski 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
132
1 in 2,596,624
Census rank
#145,757
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
115
very rare in the US
Popularity narrative
The Census Bureau recorded 115 bearers of the surname Rydzinski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145757th position in the national surname ranking.
Among Census respondents with the surname Rydzinski, the largest self-reported group is White at 95.7%. The next largest groups are Hispanic (2.6%) and Two or More Races (1.7%).
Origin
Meaning and origin of Rydzinski
The surname Rydzinski is of Polish origin and can be traced back to the 15th century. It is derived from the Polish word "rudy," meaning "red-haired" or "red," combined with the possessive suffix "-inski." This suggests that the name was initially given to someone with reddish hair or complexion.
The earliest recorded instances of the Rydzinski surname appear in various historical documents from the regions of Greater Poland and Silesia. These areas were part of the Polish-Lithuanian Commonwealth, a multi-ethnic union that existed from the late 15th to the late 18th century.
One notable early reference to the name can be found in the 16th-century tax records of the city of Poznan, where several individuals with the surname Rydzinski were listed as residents. Additionally, the name appears in the archives of the nearby town of Gniezno, which was an important religious and cultural center during the Middle Ages.
In the 17th century, a prominent figure named Jan Rydzinski (1609-1678) was a Polish nobleman and military commander who served in the armies of King Wladyslaw IV and King Jan Kazimierz. He fought against the Swedish forces during the Deluge, a period of widespread invasions and warfare in the Polish-Lithuanian Commonwealth.
Another notable individual with this surname was Franciszek Rydzinski (1784-1854), a Polish priest and writer who authored several religious texts and served as a parish priest in the town of Buk, near Poznan.
During the 19th century, Ignacy Rydzinski (1815-1891) was a respected Polish educator and headmaster of a renowned secondary school in Krakow. He was known for his innovative teaching methods and his efforts to promote education among the Polish population.
Towards the end of the 19th century, Stanislaw Rydzinski (1869-1932) was a prominent Polish architect who designed several notable buildings in the city of Poznan, including the neo-Renaissance style Poznan Opera House.
In the early 20th century, Wladyslaw Rydzinski (1888-1957) was a Polish military officer who served in both World Wars and attained the rank of General in the Polish Army. He played a crucial role in the defense of Warsaw during the 1939 German invasion of Poland.
Demographics
Ancestry and ethnicity for Rydzinski
Among Census respondents with the surname Rydzinski, the largest self-reported group is White at 95.7%. The next largest groups are Hispanic (2.6%) and Two or More Races (1.7%).
The bar chart below shows how Rydzinski 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 Rydzinski surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.7% · 110
- Hispanic or Latino2.6% · 3
- Two or more races1.7% · 2
Timeline
Historical Census data for Rydzinski
Rydzinski 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
#129,047
National surname rank
Recorded bearers 132
+7 bearers (+5.6%)
Per 100,000 0.04
Rank movement Down 2,647 places
2020
#145,757
National surname rank
Recorded bearers 115
-17 bearers (-12.9%)
Per 100,000 0.04
Rank movement Down 16,710 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #126,400 | 125 | 0.05 | First available Census row | First available Census row |
| 2010 | #129,047 | 132 | 0.04 | +7 bearers (+5.6%) | Down 2,647 places |
| 2020 | #145,757 | 115 | 0.04 | -17 bearers (-12.9%) | Down 16,710 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 Rydzinski 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 | #129,047 | #145,757 | -12.9% |
| Count | 132 | 115 | -12.9% |
| Per 100K | 0.04 | 0.04 | -3.8% |
Between the 2010 and 2020 Census, the number of Rydzinski bearers went from 132 to 115 (-12.9% change). The surname moved down 16,710 positions in the national ranking, going from #129,047 to #145,757.
FAQ
Rydzinski surname: questions and answers
How many people in the U.S. have the surname Rydzinski?
Name Census estimates that about 132 living Americans carry the surname Rydzinski. Using the current population baseline, that works out to roughly 1 in 2,596,624 residents.
How common is Rydzinski?
Rydzinski ranks #145,757 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 115 people with the surname Rydzinski. That is different from the site's living-bearer estimate (132), 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 Rydzinski.
Has Rydzinski become more or less common over time?
Between 2010 and 2020, the surname Rydzinski went from 132 recorded bearers to 115. That is a decrease of 17 (-12.9%). In the national ranking it fell from #129,047 to #145,757.
What does the Census say about the background of Rydzinski?
Among Census respondents with the surname Rydzinski, the largest self-reported group is White at 95.7%. The next largest groups are Hispanic (2.6%) 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 Rydzinski in the 2020 Census, accounting for 95.7% (110 people in the source table).
What is the full ancestry breakdown?
Rydzinski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.7%), Hispanic (2.6%), 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 Rydzinski (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 Rydzinski mean?
A surname of Polish origin meaning "reddish" or "red-haired". 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 Rydzinski (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 Rydzinski?
You can see how many people have the last name Rydzinski on our sister site HowManyOfMe.org — same data roots, lighter UI.