2000
#14,370
National surname rank
Recorded bearers 1,910
First available Census row
Per 100,000 0.71
Rare Last name
Casson
An English occupational surname for a maker or seller of boxes, chests, or cases.
According to the 2020 US Census Bureau surname tables, roughly 2,180 Americans carry the last name Casson. That puts it at #14,939 in the national surname ranking, appearing at a frequency of 0.64 per 100,000 people (about 1 in 157,227 residents).
This page is the full Name Census profile for the Casson 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.
For British records, Name Census UK has a British surname profile for Casson with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
2.2K
1 in 157,227
Census rank
#14,939
2020 decennial data
Per 100,000
0.6
Frequency rate
Recorded bearers
1.9K
rare in the US
Popularity narrative
The Census Bureau recorded 1,901 bearers of the surname Casson in its 2020 decennial surname file. At a rate of 0.64 per 100,000 residents, it holds the 14939th position in the national surname ranking.
Among Census respondents with the surname Casson, the largest self-reported group is White at 76.1%. The next largest groups are Black (15.5%) and Two or More Races (3.6%).
Origin
Meaning and origin of Casson
The surname Casson has its origins in England, emerging during the medieval period. It is believed to have derived from the Old English personal name "Cas," a diminutive form of the name "Cass," which itself is thought to have been a shortened version of the Latin name "Cassianus."
One of the earliest recorded instances of the name can be found in the Domesday Book of 1086, where it appears as "Casse." This entry refers to a landowner or tenant in Lincolnshire, indicating the presence of the name in that region during the late 11th century.
By the 13th century, the name had evolved into various spellings, including "Cason," "Casson," and "Casun." These variations likely emerged due to regional dialects and the inconsistencies in spelling during that era.
The name Casson has also been associated with certain place names, particularly in Lancashire. For example, the village of Casson in the Ribble Valley is believed to have derived its name from the surname, suggesting the presence of families bearing this name in the area.
Notable individuals with the surname Casson include:
1. Sir Hugh Casson (1910-1999), a renowned British architect, artist, and writer known for his architectural designs and contributions to urban planning.
2. Elizabeth Casson (1881-1954), a British sculptor and medallist who created several notable public monuments and memorials.
3. Stanley Casson (1889-1944), a British archaeologist and academic who specialized in ancient Greek and Roman studies.
4. William Casson (1643-1703), an English merchant and landowner who served as Sheriff of Yorkshire in 1694.
5. John Casson (1637-1719), an English clergyman and academic who served as the Master of Christ's College, Cambridge, from 1675 to 1719.
The Casson surname has also been recorded in various parts of England, including Lancashire, Yorkshire, and Lincolnshire, suggesting its widespread presence across different regions of the country.
Demographics
Ancestry and ethnicity for Casson
Among Census respondents with the surname Casson, the largest self-reported group is White at 76.1%. The next largest groups are Black (15.5%) and Two or More Races (3.6%).
The bar chart below shows how Casson 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 Casson surname at the time of the 2020 Census, not any inherent property of the name itself.
- White76.1% · 1,446
- Black or African American15.5% · 294
- Two or more races3.6% · 68
- Hispanic or Latino3.4% · 65
- Asian and Pacific Islander1.4% · 27
- American Indian and Alaska Native0.1% · 1
Timeline
Historical Census data for Casson
Casson 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
#14,507
National surname rank
Recorded bearers 2,056
+146 bearers (+7.6%)
Per 100,000 0.70
Rank movement Down 137 places
2020
#14,939
National surname rank
Recorded bearers 1,901
-155 bearers (-7.5%)
Per 100,000 0.64
Rank movement Down 432 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #14,370 | 1,910 | 0.71 | First available Census row | First available Census row |
| 2010 | #14,507 | 2,056 | 0.70 | +146 bearers (+7.6%) | Down 137 places |
| 2020 | #14,939 | 1,901 | 0.64 | -155 bearers (-7.5%) | Down 432 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 Casson 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 | #14,507 | #14,939 | -3.0% |
| Count | 2,056 | 1,901 | -7.5% |
| Per 100K | 0.70 | 0.64 | -9.1% |
Between the 2010 and 2020 Census, the number of Casson bearers went from 2,056 to 1,901 (-7.5% change). The surname moved down 432 positions in the national ranking, going from #14,507 to #14,939.
FAQ
Casson surname: questions and answers
How many people in the U.S. have the surname Casson?
Name Census estimates that about 2,180 living Americans carry the surname Casson. Using the current population baseline, that works out to roughly 1 in 157,227 residents.
How common is Casson?
Casson ranks #14,939 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.64 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 1,901 people with the surname Casson. That is different from the site's living-bearer estimate (2,180), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.64 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.64 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Casson.
Has Casson become more or less common over time?
Between 2010 and 2020, the surname Casson went from 2,056 recorded bearers to 1,901. That is a decrease of 155 (-7.5%). In the national ranking it fell from #14,507 to #14,939.
What does the Census say about the background of Casson?
Among Census respondents with the surname Casson, the largest self-reported group is White at 76.1%. The next largest groups are Black (15.5%) and Two or More Races (3.6%). 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 Casson in the 2020 Census, accounting for 76.1% (1,446 people in the source table).
What is the full ancestry breakdown?
Casson appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (76.1%), Black (15.5%), Two or More Races (3.6%). 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 Casson (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 Casson mean?
An English occupational surname for a maker or seller of boxes, chests, or cases. 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 Casson (0.64 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 Casson?
For a quick modern take, check how many people have the last name Casson on our sister site HowManyOfMe.org.