2000
#120,330
National surname rank
Recorded bearers 133
First available Census row
Per 100,000 0.05
Very Rare Last name
Radkiewicz
A Polish surname derived from the diminutive form of "Radko", an old Slavic personal name.
According to the 2020 US Census Bureau surname tables, roughly 127 Americans carry the last name Radkiewicz. That puts it at #148,665 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,698,853 residents).
This page is the full Name Census profile for the Radkiewicz 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
127
1 in 2,698,853
Census rank
#148,665
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
111
very rare in the US
Popularity narrative
The Census Bureau recorded 111 bearers of the surname Radkiewicz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 148665th position in the national surname ranking.
Among Census respondents with the surname Radkiewicz, the largest self-reported group is White at 92.8%. The next largest groups are Two or More Races (3.6%) and Hispanic (2.7%).
Origin
Meaning and origin of Radkiewicz
The surname Radkiewicz is of Polish origin, originating from the northwestern region of Poland near the Baltic Sea. It dates back to the medieval period, likely emerging in the 12th or 13th century. The name is derived from the Polish word "radka," which means "joy" or "happiness," suggesting that the earliest bearers of this surname may have been known for their cheerful or joyful dispositions.
Radkiewicz is a patronymic surname, meaning it was initially formed by adding the possessive suffix "-owicz" or "-ewicz" to the given name "Radka," creating "Radkiewicz." This naming convention was common in Poland during the Middle Ages, as it indicated the person was the son or descendant of someone named Radka.
One of the earliest recorded instances of the Radkiewicz surname can be found in the Tczew Land and Mortgage Records from the late 15th century. These records document various legal transactions and property holdings in the Tczew region of Pomeranian Voivodeship, which was part of the Kingdom of Poland at that time.
In the 16th century, a notable figure with the Radkiewicz surname was Andrzej Radkiewicz, a Polish-Lithuanian military commander who served under King Zygmunt August during the Livonian War. He participated in several battles against the forces of Ivan the Terrible and is mentioned in historical accounts from that period.
Another significant individual with this surname was Jadwiga Radkiewicz, a Polish noblewoman who lived in the late 17th century. She was the owner of the Radkiewicz family estate in the village of Radkiewicze, located in the Grodno Voivodeship (now part of modern-day Belarus).
In the 19th century, Ignacy Radkiewicz was a prominent Polish writer and poet who contributed to the development of Polish Romantic literature. He was born in 1810 and published several collections of poetry during his lifetime.
Towards the end of the 19th century, Józef Radkiewicz was a renowned Polish architect who designed several notable buildings in Warsaw, including the Polish National Opera and the Zachęta National Gallery of Art.
It's important to note that variations in spelling and pronunciation of the Radkiewicz surname may have occurred over time and across different regions, including Radkiewicz, Radkiewicz, and Radkiewicz. However, the core meaning and origin of the name remain rooted in the Polish language and cultural heritage.
Demographics
Ancestry and ethnicity for Radkiewicz
Among Census respondents with the surname Radkiewicz, the largest self-reported group is White at 92.8%. The next largest groups are Two or More Races (3.6%) and Hispanic (2.7%).
The bar chart below shows how Radkiewicz 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 Radkiewicz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.8% · 103
- Two or more races3.6% · 4
- Hispanic or Latino2.7% · 3
- Black or African American0.9% · 1
Timeline
Historical Census data for Radkiewicz
Radkiewicz 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
#148,347
National surname rank
Recorded bearers 111
-22 bearers (-16.5%)
Per 100,000 0.04
Rank movement Down 28,017 places
2020
#148,665
National surname rank
Recorded bearers 111
+0 bearers (+0.0%)
Per 100,000 0.04
Rank movement Down 318 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #120,330 | 133 | 0.05 | First available Census row | First available Census row |
| 2010 | #148,347 | 111 | 0.04 | -22 bearers (-16.5%) | Down 28,017 places |
| 2020 | #148,665 | 111 | 0.04 | +0 bearers (+0.0%) | Down 318 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 Radkiewicz 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 | #148,347 | #148,665 | -0.2% |
| Count | 111 | 111 | 0.0% |
| Per 100K | 0.04 | 0.04 | -7.2% |
Between the 2010 and 2020 Census, the number of Radkiewicz bearers went from 111 to 111 (+0.0% change). The surname moved down 318 positions in the national ranking, going from #148,347 to #148,665.
FAQ
Radkiewicz surname: questions and answers
How many people in the U.S. have the surname Radkiewicz?
Name Census estimates that about 127 living Americans carry the surname Radkiewicz. Using the current population baseline, that works out to roughly 1 in 2,698,853 residents.
How common is Radkiewicz?
Radkiewicz ranks #148,665 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 111 people with the surname Radkiewicz. That is different from the site's living-bearer estimate (127), 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 Radkiewicz.
Has Radkiewicz become more or less common over time?
Between 2010 and 2020, the surname Radkiewicz went from 111 recorded bearers to 111. That is an increase of 0 (+0.0%). In the national ranking it fell from #148,347 to #148,665.
What does the Census say about the background of Radkiewicz?
Among Census respondents with the surname Radkiewicz, the largest self-reported group is White at 92.8%. The next largest groups are Two or More Races (3.6%) and Hispanic (2.7%). 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 Radkiewicz in the 2020 Census, accounting for 92.8% (103 people in the source table).
What is the full ancestry breakdown?
Radkiewicz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.8%), Two or More Races (3.6%), Hispanic (2.7%). 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 Radkiewicz (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 Radkiewicz mean?
A Polish surname derived from the diminutive form of "Radko", an old Slavic personal name. 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 Radkiewicz (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 Radkiewicz?
For a quick modern take, check how many people have the surname Radkiewicz on our sister site HowManyOfMe.org.