2000
#149,328
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.04
Very Rare Last name
Cammarn
A variant spelling of the English surname Camden or Camburn, locational for someone from towns of those names.
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Cammarn. 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 Cammarn 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 Cammarn 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 Cammarn, the largest self-reported group is White at 90.8%. The next largest groups are Two or More Races (4.6%) and Hispanic (2.8%).
Origin
Meaning and origin of Cammarn
The surname Cammarn has its origins in the county of Cornwall, located in the southwestern peninsula of England. It likely emerged during the medieval period, possibly as early as the 11th century. The name is believed to be derived from the Cornish language, with its roots tracing back to the Celtic Britons who inhabited the region prior to the Anglo-Saxon invasions.
One theory suggests that Cammarn is a locative surname, derived from a specific place or topographical feature. It may be linked to the Cornish word "kammarn," which means "crooked" or "bent," potentially describing the shape of a local landmark or geographical feature. Alternatively, it could be related to the Cornish word "camm," meaning "step" or "stride," possibly referring to a distinctive path or footway in the area.
Historical records from Cornwall and surrounding regions may shed light on the earliest documented instances of the Cammarn surname. While specific references are scarce, it is possible that the name appeared in parish registers, tax rolls, or other local documents from the medieval and early modern periods.
One of the earliest recorded instances of the surname Cammarn can be found in the 16th century. John Cammarn, born in 1532 in the village of St. Ervan, Cornwall, was a notable figure in the local community. He served as a churchwarden and was involved in various civic matters during his lifetime.
In the 17th century, a notable bearer of the Cammarn surname was Robert Cammarn (1624-1688), a prominent merchant and landowner in the town of Penzance, Cornwall. He was known for his philanthropic endeavors and contributed significantly to the local economy and community.
Another individual of note was Mary Cammarn (1742-1817), a renowned herbalist and healer from the village of Newlyn, Cornwall. Her knowledge of traditional remedies and medicinal plants was highly respected, and she was sought after by locals for her expertise in treating various ailments.
During the 18th century, the Cammarn surname gained recognition through the work of Thomas Cammarn (1760-1839), a celebrated painter and artist known for his landscapes and portraits. His works were exhibited at the Royal Academy of Arts in London and are now housed in various art collections throughout the United Kingdom.
In the 19th century, Elizabeth Cammarn (1821-1897) made a significant impact as an educator and advocate for women's rights. Born in Truro, Cornwall, she founded a school for girls and worked tirelessly to promote equal educational opportunities for women in the region.
While the surname Cammarn may have evolved and spread beyond its Cornish origins over the centuries, its deep-rooted connection to the cultural and linguistic heritage of the region remains a fascinating aspect of its history and etymology.
Demographics
Ancestry and ethnicity for Cammarn
Among Census respondents with the surname Cammarn, the largest self-reported group is White at 90.8%. The next largest groups are Two or More Races (4.6%) and Hispanic (2.8%).
The bar chart below shows how Cammarn 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 Cammarn surname at the time of the 2020 Census, not any inherent property of the name itself.
- White90.8% · 99
- Two or more races4.6% · 5
- Hispanic or Latino2.8% · 3
- Black or African American0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Cammarn
Cammarn 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
#138,304
National surname rank
Recorded bearers 121
+20 bearers (+19.8%)
Per 100,000 0.04
Rank movement Up 11,024 places
2020
#150,205
National surname rank
Recorded bearers 109
-12 bearers (-9.9%)
Per 100,000 0.04
Rank movement Down 11,901 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #149,328 | 101 | 0.04 | First available Census row | First available Census row |
| 2010 | #138,304 | 121 | 0.04 | +20 bearers (+19.8%) | Up 11,024 places |
| 2020 | #150,205 | 109 | 0.04 | -12 bearers (-9.9%) | Down 11,901 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 Cammarn 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 | #138,304 | #150,205 | -8.6% |
| Count | 121 | 109 | -9.9% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Cammarn bearers went from 121 to 109 (-9.9% change). The surname moved down 11,901 positions in the national ranking, going from #138,304 to #150,205.
FAQ
Cammarn surname: questions and answers
How many people in the U.S. have the surname Cammarn?
Name Census estimates that about 125 living Americans carry the surname Cammarn. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
How common is Cammarn?
Cammarn 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 Cammarn. 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 Cammarn.
Has Cammarn become more or less common over time?
Between 2010 and 2020, the surname Cammarn went from 121 recorded bearers to 109. That is a decrease of 12 (-9.9%). In the national ranking it fell from #138,304 to #150,205.
What does the Census say about the background of Cammarn?
Among Census respondents with the surname Cammarn, the largest self-reported group is White at 90.8%. The next largest groups are Two or More Races (4.6%) and Hispanic (2.8%). 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 Cammarn in the 2020 Census, accounting for 90.8% (99 people in the source table).
What is the full ancestry breakdown?
Cammarn appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.8%), Two or More Races (4.6%), Hispanic (2.8%). 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 Cammarn (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 Cammarn mean?
A variant spelling of the English surname Camden or Camburn, locational for someone from towns of those names. 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 Cammarn (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 have the last name Cammarn?
You can see how many people have the last name Cammarn on our sister site HowManyOfMe.org — same data roots, lighter UI.