2000
#67,936
National surname rank
Recorded bearers 271
First available Census row
Per 100,000 0.10
Very Rare Last name
Radach
A German surname derived from a placename referring to a location with meadows or clearings.
According to the 2020 US Census Bureau surname tables, roughly 306 Americans carry the last name Radach. That puts it at #77,462 in the national surname ranking, appearing at a frequency of 0.09 per 100,000 people (about 1 in 1,120,112 residents).
This page is the full Name Census profile for the Radach 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
306
1 in 1,120,112
Census rank
#77,462
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
267
very rare in the US
Popularity narrative
The Census Bureau recorded 267 bearers of the surname Radach in its 2020 decennial surname file. At a rate of 0.09 per 100,000 residents, it holds the 77462nd position in the national surname ranking.
Among Census respondents with the surname Radach, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (8.2%) and Two or More Races (2.6%).
Origin
Meaning and origin of Radach
The surname RADACH has its origins in Germany, first appearing around the 13th century. It is thought to be derived from the German word "Rad", meaning "wheel", and the suffix "-ach", indicating a location. This suggests the name may have originated from a place where wheels or wheeled vehicles were produced or repaired.
The earliest recorded instances of the name can be found in medieval German records and documents from the region of Saxony-Anhalt. One notable example is a record from the year 1298 mentioning a Johann Radach, a merchant in the town of Halle.
In the 15th century, the name appears in the records of the Duchy of Prussia, with a Gerhard Radach serving as a knight in the service of the Teutonic Order in 1437. During this time, variations in spelling such as Radacke and Radacher were also found.
The name RADACH is also associated with the town of Radach, now known as Radacze, located in modern-day Poland. This town was originally part of the German-speaking region of Silesia, and it is likely that the surname originated from this location.
Notable individuals with the surname RADACH throughout history include:
1. Hans Radach (1520-1592), a German architect and builder who designed several churches and municipal buildings in the city of Dresden.
2. Johanna Radach (1682-1748), a German painter known for her still-life and portrait works, active in the city of Hamburg.
3. Friedrich Radach (1771-1842), a Prussian military officer who served in the Napoleonic Wars and later became a prominent landowner in the province of Pomerania.
4. Wilhelm Radach (1825-1901), a German linguist and philologist who made significant contributions to the study of ancient Greek and Latin texts.
5. Gertrude Radach (1883-1957), a German opera singer and soprano who performed in leading roles at the Berlin State Opera and other prestigious venues during the early 20th century.
While the surname RADACH is not as common today as it once was, it remains a testament to the rich cultural and historical heritage of Germany and its neighboring regions.
Demographics
Ancestry and ethnicity for Radach
Among Census respondents with the surname Radach, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (8.2%) and Two or More Races (2.6%).
The bar chart below shows how Radach 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 Radach surname at the time of the 2020 Census, not any inherent property of the name itself.
- White88.4% · 236
- Hispanic or Latino8.2% · 22
- Two or more races2.6% · 7
- Black or African American0.4% · 1
- Asian and Pacific Islander0.4% · 1
Timeline
Historical Census data for Radach
Radach 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
#74,375
National surname rank
Recorded bearers 260
-11 bearers (-4.1%)
Per 100,000 0.09
Rank movement Down 6,439 places
2020
#77,462
National surname rank
Recorded bearers 267
+7 bearers (+2.7%)
Per 100,000 0.09
Rank movement Down 3,087 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #67,936 | 271 | 0.10 | First available Census row | First available Census row |
| 2010 | #74,375 | 260 | 0.09 | -11 bearers (-4.1%) | Down 6,439 places |
| 2020 | #77,462 | 267 | 0.09 | +7 bearers (+2.7%) | Down 3,087 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 Radach 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 | #74,375 | #77,462 | -4.2% |
| Count | 260 | 267 | 2.7% |
| Per 100K | 0.09 | 0.09 | -0.7% |
Between the 2010 and 2020 Census, the number of Radach bearers went from 260 to 267 (+2.7% change). The surname moved down 3,087 positions in the national ranking, going from #74,375 to #77,462.
FAQ
Radach surname: questions and answers
How many people in the U.S. have the surname Radach?
Name Census estimates that about 306 living Americans carry the surname Radach. Using the current population baseline, that works out to roughly 1 in 1,120,112 residents.
How common is Radach?
Radach ranks #77,462 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.09 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 267 people with the surname Radach. That is different from the site's living-bearer estimate (306), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.09 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.09 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 Radach.
Has Radach become more or less common over time?
Between 2010 and 2020, the surname Radach went from 260 recorded bearers to 267. That is an increase of 7 (+2.7%). In the national ranking it fell from #74,375 to #77,462.
What does the Census say about the background of Radach?
Among Census respondents with the surname Radach, the largest self-reported group is White at 88.4%. The next largest groups are Hispanic (8.2%) and Two or More Races (2.6%). 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 Radach in the 2020 Census, accounting for 88.4% (236 people in the source table).
What is the full ancestry breakdown?
Radach appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.4%), Hispanic (8.2%), Two or More Races (2.6%). 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 Radach (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 Radach mean?
A German surname derived from a placename referring to a location with meadows or clearings. 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 Radach (0.09 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 Radach?
You can see how many people have the last name Radach on our sister site HowManyOfMe.org — same data roots, lighter UI.