2010
#141,140
National surname rank
Recorded bearers 118
First available Census row
Per 100,000 0.04
Very Rare Last name
Cajayon
A surname of unknown origin, potentially derived from a place name.
According to the 2020 US Census Bureau surname tables, roughly 132 Americans carry the last name Cajayon. That puts it at #145,757 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,596,624 residents).
This page is the full Name Census profile for the Cajayon 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
132
1 in 2,596,624
Census rank
#145,757
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
115
very rare in the US
Popularity narrative
The Census Bureau recorded 115 bearers of the surname Cajayon in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145757th position in the national surname ranking.
Among Census respondents with the surname Cajayon, the largest self-reported group is Asian/Pacific Islander at 92.2%. The next largest groups are Two or More Races (3.5%) and White (1.7%).
Origin
Meaning and origin of Cajayon
The surname Cajayon is of Spanish origin, originating from the Andalusia region of southern Spain. It likely emerged during the 15th or 16th century, around the time of the Reconquista and the expulsion of the Moors from the Iberian Peninsula.
Cajayon is believed to be derived from the Spanish word "caja," which means "box" or "chest." This suggests that the name may have originally referred to someone who worked with boxes or chests, such as a carpenter, woodworker, or merchant. Alternatively, it could also be a topographical surname, referring to someone who lived near a distinctive rock formation or landscape feature resembling a box or chest.
One of the earliest recorded instances of the Cajayon name can be found in the baptismal records of the Iglesia de San Lorenzo in Seville, Spain, dating back to the late 16th century. In these records, a child named Juan Cajayon was baptized in 1587.
During the Spanish colonization of the Americas, several individuals with the Cajayon surname made notable contributions. One such individual was Pedro Cajayon, a Spanish explorer who accompanied Hernán Cortés on his expedition to Mexico in the early 16th century. Another was Juana Cajayon, a renowned educator who established one of the first schools for girls in the Spanish colonies in the late 17th century.
In the realm of literature, the Cajayon name is associated with Miguel Cajayon, a renowned Spanish poet and playwright of the 18th century. His works, including the acclaimed play "El Esclavo de su Amor" (The Slave of His Love), were widely celebrated during the Spanish Golden Age.
Another notable figure with the Cajayon surname was Rodrigo Cajayon, a Spanish military leader who played a crucial role in the Spanish conquest of the Philippines in the late 16th century. His bravery and strategic prowess were instrumental in several decisive battles against local resistance.
Finally, in the field of art, the Cajayon name is linked to María Cajayon, a celebrated Spanish painter of the Baroque period. Her vibrant religious paintings adorned numerous churches and cathedrals throughout Spain and its colonies in the 17th century.
Demographics
Ancestry and ethnicity for Cajayon
Among Census respondents with the surname Cajayon, the largest self-reported group is Asian/Pacific Islander at 92.2%. The next largest groups are Two or More Races (3.5%) and White (1.7%).
The bar chart below shows how Cajayon 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 Cajayon surname at the time of the 2020 Census, not any inherent property of the name itself.
- Asian and Pacific Islander92.2% · 106
- Two or more races3.5% · 4
- White1.7% · 2
- Hispanic or Latino1.7% · 2
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Cajayon
Cajayon appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#145,757
National surname rank
Recorded bearers 115
-3 bearers (-2.5%)
Per 100,000 0.04
Rank movement Down 4,617 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #141,140 | 118 | 0.04 | First available Census row | First available Census row |
| 2020 | #145,757 | 115 | 0.04 | -3 bearers (-2.5%) | Down 4,617 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 Cajayon 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 | #141,140 | #145,757 | -3.3% |
| Count | 118 | 115 | -2.5% |
| Per 100K | 0.04 | 0.04 | -3.8% |
Between the 2010 and 2020 Census, the number of Cajayon bearers went from 118 to 115 (-2.5% change). The surname moved down 4,617 positions in the national ranking, going from #141,140 to #145,757.
FAQ
Cajayon surname: questions and answers
How many people in the U.S. have the surname Cajayon?
Name Census estimates that about 132 living Americans carry the surname Cajayon. Using the current population baseline, that works out to roughly 1 in 2,596,624 residents.
How common is Cajayon?
Cajayon ranks #145,757 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 115 people with the surname Cajayon. That is different from the site's living-bearer estimate (132), 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 Cajayon.
Has Cajayon become more or less common over time?
Between 2010 and 2020, the surname Cajayon went from 118 recorded bearers to 115. That is a decrease of 3 (-2.5%). In the national ranking it fell from #141,140 to #145,757.
What does the Census say about the background of Cajayon?
Among Census respondents with the surname Cajayon, the largest self-reported group is Asian/Pacific Islander at 92.2%. The next largest groups are Two or More Races (3.5%) and White (1.7%). 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?
Asian/Pacific Islander is the largest self-reported group for the surname Cajayon in the 2020 Census, accounting for 92.2% (106 people in the source table).
What is the full ancestry breakdown?
Cajayon appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (92.2%), Two or More Races (3.5%), White (1.7%). 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 Cajayon (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 Cajayon mean?
A surname of unknown origin, potentially derived from a place name. 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 Cajayon (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 Cajayon?
See how many people have the last name Cajayon on HowManyOfMe.org, our sister site built around that single question.