2010
#156,044
National surname rank
Recorded bearers 104
First available Census row
Per 100,000 0.04
Very Rare Last name
Rudny
A surname derived from the Polish word "ruda" meaning "ore" or "mining".
According to the 2020 US Census Bureau surname tables, roughly 115 Americans carry the last name Rudny. That puts it at #155,682 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,980,473 residents).
This page is the full Name Census profile for the Rudny 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
115
1 in 2,980,473
Census rank
#155,682
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
100
very rare in the US
Popularity narrative
The Census Bureau recorded 100 bearers of the surname Rudny in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155682nd position in the national surname ranking.
Among Census respondents with the surname Rudny, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (5.0%) and Asian/Pacific Islander (1.0%).
Origin
Meaning and origin of Rudny
The surname RUDNY has its origins in Eastern Europe, specifically in the regions of Poland and Ukraine. It is derived from the Slavic root word "ruda," meaning "ore" or "red," referring to either reddish-brown soil or iron ore mining.
The earliest recorded instances of the name RUDNY can be traced back to the 16th century in the Polish-Lithuanian Commonwealth. The name was often associated with individuals involved in the mining or metallurgy industries, as well as those residing in areas with reddish soil.
In the 17th century, the RUDNY surname appeared in various records and manuscripts in the Polish-Lithuanian Commonwealth, including land ownership documents and court proceedings. One notable figure from this era was Jan RUDNY (1580-1648), a Polish philosopher and mathematician known for his contributions to the study of logic and mathematics.
During the 18th and 19th centuries, the RUDNY surname spread across Eastern Europe, with families bearing this name found in various regions of modern-day Poland, Ukraine, Belarus, and Russia. Prominent individuals from this period include Andrei RUDNY (1760-1825), a Russian statesman and diplomat who served as the governor of several provinces.
The 19th century also saw the emergence of notable figures like Mikhail RUDNY (1820-1892), a Russian geologist and explorer who made significant contributions to the study of Siberian geology. Another notable bearer of the RUDNY surname was Nikolai RUDNY (1870-1941), a Russian revolutionary and Bolshevik who played a role in the Russian Revolution of 1917.
In the early 20th century, the RUDNY surname continued to be prevalent in Eastern Europe. One notable figure was Stanislaw RUDNY (1895-1968), a Polish sculptor and artist known for his monumental statues and public works of art.
Throughout its history, the RUDNY surname has been associated with various professions, including mining, metallurgy, geology, and academia, reflecting its origins and connections to the natural resources and intellectual pursuits of Eastern Europe.
Demographics
Ancestry and ethnicity for Rudny
Among Census respondents with the surname Rudny, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (5.0%) and Asian/Pacific Islander (1.0%).
The bar chart below shows how Rudny 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 Rudny surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.0% · 93
- Hispanic or Latino5.0% · 5
- Asian and Pacific Islander1.0% · 1
- American Indian and Alaska Native1.0% · 1
Timeline
Historical Census data for Rudny
Rudny appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#155,682
National surname rank
Recorded bearers 100
-4 bearers (-3.8%)
Per 100,000 0.03
Rank movement Up 362 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #156,044 | 104 | 0.04 | First available Census row | First available Census row |
| 2020 | #155,682 | 100 | 0.03 | -4 bearers (-3.8%) | Up 362 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 Rudny 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 | #156,044 | #155,682 | 0.2% |
| Count | 104 | 100 | -3.8% |
| Per 100K | 0.04 | 0.03 | -16.4% |
Between the 2010 and 2020 Census, the number of Rudny bearers went from 104 to 100 (-3.8% change). The surname moved up 362 positions in the national ranking, going from #156,044 to #155,682.
FAQ
Rudny surname: questions and answers
How many people in the U.S. have the surname Rudny?
Name Census estimates that about 115 living Americans carry the surname Rudny. Using the current population baseline, that works out to roughly 1 in 2,980,473 residents.
How common is Rudny?
Rudny ranks #155,682 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 100 people with the surname Rudny. That is different from the site's living-bearer estimate (115), 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 Rudny.
Has Rudny become more or less common over time?
Between 2010 and 2020, the surname Rudny went from 104 recorded bearers to 100. That is a decrease of 4 (-3.8%). In the national ranking it rose from #156,044 to #155,682.
What does the Census say about the background of Rudny?
Among Census respondents with the surname Rudny, the largest self-reported group is White at 93.0%. The next largest groups are Hispanic (5.0%) and Asian/Pacific Islander (1.0%). 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 Rudny in the 2020 Census, accounting for 93.0% (93 people in the source table).
What is the full ancestry breakdown?
Rudny appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.0%), Hispanic (5.0%), Asian/Pacific Islander (1.0%). 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 Rudny (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 Rudny mean?
A surname derived from the Polish word "ruda" meaning "ore" or "mining". 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 Rudny (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 many Americans have the surname Rudny?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.