2000
#135,837
National surname rank
First available Census row
A surname likely derived from a nickname for a clumsy or awkward person.
According to the 2020 US Census Bureau surname tables, roughly 124 Americans carry the last name Kludy. That puts it at #150,935 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,764,148 residents).
This page is the full Name Census profile for the Kludy 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
124
1 in 2,764,148
Census rank
#150,935
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
108
very rare in the US
Popularity narrative
The Census Bureau recorded 108 bearers of the surname Kludy in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150935th position in the national surname ranking.
Among Census respondents with the surname Kludy, the largest self-reported group is White at 93.5%. The next largest groups are Two or More Races (3.7%) and Hispanic (1.9%).
Origin
The surname KLUDY is of Czech origin, tracing its roots back to the 13th century in the region of Bohemia. It is believed to have derived from the Old Czech word "kluda," which means "rest" or "tranquility." This suggests that the name may have originally referred to a person who lived a peaceful or quiet life.
One of the earliest recorded instances of the name KLUDY can be found in the Liber Vetustissimus Antiquae Civitatis Pragensis, a historical manuscript from the late 13th century that documented the residents of Prague. In this record, the name appears as "Kludych," indicating its ancient roots and potential variations in spelling over time.
During the 14th century, the name KLUDY emerged in various villages and towns across Bohemia, often associated with landowners or skilled tradesmen. In the town of Kutná Hora, for instance, a family of KLUDY silversmiths was recorded in the local guild records from the late 1300s.
As the name spread across Central Europe, it underwent minor spelling variations, such as "Kludy," "Cludy," and "Kludý." One notable figure bearing this surname was Jan Kludy (1521-1589), a prominent Czech theologian and reformer who played a significant role in the Protestant Reformation in Bohemia.
In the 17th century, the name KLUDY was found in the records of the city of Brno, where a family of brewers and tavern owners bore this surname. One member of this family, Václav Kludy (1642-1712), became a respected citizen and served on the city council for several years.
Another notable figure with the surname KLUDY was Karel Kludy (1789-1856), a Czech painter and illustrator who gained recognition for his landscape paintings depicting the beauty of the Bohemian countryside.
As the KLUDY family spread throughout the Czech lands and beyond, the name also appeared in other regions, such as Moravia and Silesia. In the late 19th century, a branch of the family emigrated to the United States, where they settled in the Midwestern states.
Throughout its history, the surname KLUDY has maintained its connection to its Czech roots and has been carried by individuals from various walks of life, including artists, scholars, craftsmen, and entrepreneurs.
Demographics
Among Census respondents with the surname Kludy, the largest self-reported group is White at 93.5%. The next largest groups are Two or More Races (3.7%) and Hispanic (1.9%).
The bar chart below shows how Kludy 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 Kludy surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Kludy 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.
2000
National surname rank
First available Census row
2010
National surname rank
-5 bearers (-4.4%)
2020
National surname rank
-1 bearers (-0.9%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #135,837 | 114 | 0.04 | First available Census row | First available Census row |
| 2010 | #150,452 | 109 | 0.04 | -5 bearers (-4.4%) | Down 14,615 places |
| 2020 | #150,935 | 108 | 0.04 | -1 bearers (-0.9%) | Down 483 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
How has the Kludy surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #150,452 | #150,935 | -0.3% |
| Count | 109 | 108 | -0.9% |
| Per 100K | 0.04 | 0.04 | -9.7% |
Between the 2010 and 2020 Census, the number of Kludy bearers went from 109 to 108 (-0.9% change). The surname moved down 483 positions in the national ranking, going from #150,452 to #150,935.
FAQ
Name Census estimates that about 124 living Americans carry the surname Kludy. Using the current population baseline, that works out to roughly 1 in 2,764,148 residents.
Kludy ranks #150,935 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.
The raw 2020 Census file counted 108 people with the surname Kludy. That is different from the site's living-bearer estimate (124), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
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 Kludy.
Between 2010 and 2020, the surname Kludy went from 109 recorded bearers to 108. That is a decrease of 1 (-0.9%). In the national ranking it fell from #150,452 to #150,935.
Among Census respondents with the surname Kludy, the largest self-reported group is White at 93.5%. The next largest groups are Two or More Races (3.7%) and Hispanic (1.9%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Kludy in the 2020 Census, accounting for 93.5% (101 people in the source table).
Kludy appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.5%), Two or More Races (3.7%), Hispanic (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.
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 Kludy (2000, 2010, 2020).
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.
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.
A surname likely derived from a nickname for a clumsy or awkward person. The fuller origin note on this page goes into more detail.
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.
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 Kludy (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.
You can see how many people have the last name Kludy on our sister site HowManyOfMe.org — same data roots, lighter UI.