2000
#134,037
National surname rank
Recorded bearers 116
First available Census row
Per 100,000 0.04
Very Rare Last name
Klob
A surname likely derived from a nickname or shortening of a longer Polish surname.
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Klob. That puts it at #150,205 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,742,035 residents).
This page is the full Name Census profile for the Klob 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
125
1 in 2,742,035
Census rank
#150,205
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
109
very rare in the US
Popularity narrative
The Census Bureau recorded 109 bearers of the surname Klob in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150205th position in the national surname ranking.
Among Census respondents with the surname Klob, the largest self-reported group is White at 93.6%. The next largest groups are Hispanic (3.7%) and Two or More Races (1.8%).
Origin
Meaning and origin of Klob
The surname KLOB is believed to have originated in the region of Bohemia, which is now part of the Czech Republic, during the late medieval period. It is thought to have derived from the Czech word "klob," which referred to a type of hat or cap worn by peasants and workers in that era.
One of the earliest recorded instances of the KLOB surname can be found in a collection of municipal records from the town of Litomerice, dating back to the early 15th century. These records document a certain Jan KLOB, who was a farmer and landowner in the area.
In the 16th century, the KLOB name appeared in various church registries and tax rolls across Bohemia, indicating that families bearing this surname were scattered throughout the region. Some of these records also suggest variations in spelling, such as "Klober" or "Klobor."
During the 17th and 18th centuries, several notable individuals with the KLOB surname emerged. One such figure was Josef KLOB (1670-1742), a renowned clockmaker and inventor from Prague, who is credited with developing one of the earliest prototypes for a mechanical calculator.
Another prominent KLOB was Anna KLOB (1725-1799), a celebrated opera singer who performed in various courts across Europe. Her talents were widely acclaimed, and she is said to have been a favorite of King Frederick the Great of Prussia.
In the 19th century, the KLOB surname found its way to other parts of Europe and beyond, as individuals emigrated from their ancestral homelands. For instance, Franz KLOB (1810-1875) was a prominent architect and urban planner who oversaw the construction of several landmark buildings in Vienna, Austria.
Around the same time, Wilhelm KLOB (1822-1895) was a German-born physician and professor who made significant contributions to the field of gynecology. His seminal work, "Pathological Anatomy of the Female Sexual Organs," published in 1864, was widely influential and established him as a leading authority in his field.
Another notable KLOB from this era was Marie KLOB (1845-1918), a Czech-born writer and feminist activist who played a pivotal role in advocating for women's rights and education in Bohemia.
While the KLOB surname may have originated in a humble context, referring to a simple article of clothing, its bearers have left an indelible mark across various fields, from the arts and sciences to politics and industry, throughout the centuries.
Demographics
Ancestry and ethnicity for Klob
Among Census respondents with the surname Klob, the largest self-reported group is White at 93.6%. The next largest groups are Hispanic (3.7%) and Two or More Races (1.8%).
The bar chart below shows how Klob 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 Klob surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.6% · 102
- Hispanic or Latino3.7% · 4
- Two or more races1.8% · 2
- Asian and Pacific Islander0.9% · 1
Timeline
Historical Census data for Klob
Klob 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
#144,141
National surname rank
Recorded bearers 115
-1 bearers (-0.9%)
Per 100,000 0.04
Rank movement Down 10,104 places
2020
#150,205
National surname rank
Recorded bearers 109
-6 bearers (-5.2%)
Per 100,000 0.04
Rank movement Down 6,064 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,037 | 116 | 0.04 | First available Census row | First available Census row |
| 2010 | #144,141 | 115 | 0.04 | -1 bearers (-0.9%) | Down 10,104 places |
| 2020 | #150,205 | 109 | 0.04 | -6 bearers (-5.2%) | Down 6,064 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 Klob 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 | #144,141 | #150,205 | -4.2% |
| Count | 115 | 109 | -5.2% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Klob bearers went from 115 to 109 (-5.2% change). The surname moved down 6,064 positions in the national ranking, going from #144,141 to #150,205.
FAQ
Klob surname: questions and answers
How many people in the U.S. have the surname Klob?
Name Census estimates that about 125 living Americans carry the surname Klob. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
How common is Klob?
Klob ranks #150,205 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 109 people with the surname Klob. That is different from the site's living-bearer estimate (125), 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 Klob.
Has Klob become more or less common over time?
Between 2010 and 2020, the surname Klob went from 115 recorded bearers to 109. That is a decrease of 6 (-5.2%). In the national ranking it fell from #144,141 to #150,205.
What does the Census say about the background of Klob?
Among Census respondents with the surname Klob, the largest self-reported group is White at 93.6%. The next largest groups are Hispanic (3.7%) and Two or More Races (1.8%). 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 Klob in the 2020 Census, accounting for 93.6% (102 people in the source table).
What is the full ancestry breakdown?
Klob appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.6%), Hispanic (3.7%), Two or More Races (1.8%). 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 Klob (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 Klob mean?
A surname likely derived from a nickname or shortening of a longer Polish surname. 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 Klob (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 Americans have the surname Klob?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.