2010
#156,044
National surname rank
Recorded bearers 104
First available Census row
Per 100,000 0.04
Very Rare Last name
Ynocencio
A Spanish surname derived from "inocencio," meaning innocence or innocency.
According to the 2020 US Census Bureau surname tables, roughly 111 Americans carry the last name Ynocencio. That puts it at #156,449 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 3,087,877 residents).
This page is the full Name Census profile for the Ynocencio 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
111
1 in 3,087,877
Census rank
#156,449
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
97
very rare in the US
Popularity narrative
The Census Bureau recorded 97 bearers of the surname Ynocencio in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 156449th position in the national surname ranking.
Among Census respondents with the surname Ynocencio, the largest self-reported group is Hispanic at 75.3%. The next largest groups are White (21.6%) and Two or More Races (2.1%).
Origin
Meaning and origin of Ynocencio
The surname Ynocencio traces its origins to the Iberian Peninsula, particularly Spain, with roots that can be traced as far back as the medieval period. The name derives from the Latin word "innocentius," meaning "innocent" or "harmless." The Spanish spelling adapted over time, incorporating regional linguistic influences, eventually settling into variants like Ynocencio.
The earliest recorded instances of the surname date back to the 13th and 14th centuries. Documents from this era, such as ecclesiastical records and local censuses, occasionally feature individuals bearing this surname. A notable historical reference is found in the records of the Kingdom of Aragon, where a Fernando Ynocencio is mentioned as a landowner around the late 1300s.
The surname Ynocencio also appears in the Americas following Spanish colonization. In the 16th century, Juan Ynocencio, born in 1542 in Sevilla, Spain, is believed to have migrated to the New World, contributing to the spread of the surname. His descendants continued to thrive, establishing the Ynocencio name in several regions of present-day Mexico and Central America.
Further historical records from the 17th century include Maria Ynocencio, who is listed in the baptismal records of the Cathedral of San Juan Bautista in Puerto Rico, dated 1653. These records suggest the family's continued influence and presence in colonial society. Another significant individual is Don Pedro Ynocencio, a Spanish nobleman born in 1620, who held various administrative positions in the Spanish territories of the Americas.
Throughout the 18th and 19th centuries, the name Ynocencio appears in various civil and church documents, highlighting its steady presence in both Spain and the Spanish-speaking colonies. Vicente Ynocencio, born in 1767, served as a notable figure in Spanish civil administration, contributing to local governance and policies.
By chronicling these individuals and their contributions, the historical tapestry of the surname Ynocencio becomes apparent. Its journey from medieval Spain to the New World highlights the name's enduring legacy and the interconnected histories of the regions where it has been found.
Demographics
Ancestry and ethnicity for Ynocencio
Among Census respondents with the surname Ynocencio, the largest self-reported group is Hispanic at 75.3%. The next largest groups are White (21.6%) and Two or More Races (2.1%).
The bar chart below shows how Ynocencio 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 Ynocencio surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino75.3% · 73
- White21.6% · 21
- Two or more races2.1% · 2
- Black or African American1.0% · 1
Timeline
Historical Census data for Ynocencio
Ynocencio 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
#156,449
National surname rank
Recorded bearers 97
-7 bearers (-6.7%)
Per 100,000 0.03
Rank movement Down 405 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #156,044 | 104 | 0.04 | First available Census row | First available Census row |
| 2020 | #156,449 | 97 | 0.03 | -7 bearers (-6.7%) | Down 405 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 Ynocencio 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 | #156,044 | #156,449 | -0.3% |
| Count | 104 | 97 | -6.7% |
| Per 100K | 0.04 | 0.03 | -18.9% |
Between the 2010 and 2020 Census, the number of Ynocencio bearers went from 104 to 97 (-6.7% change). The surname moved down 405 positions in the national ranking, going from #156,044 to #156,449.
FAQ
Ynocencio surname: questions and answers
How many people in the U.S. have the surname Ynocencio?
Name Census estimates that about 111 living Americans carry the surname Ynocencio. Using the current population baseline, that works out to roughly 1 in 3,087,877 residents.
How common is Ynocencio?
Ynocencio ranks #156,449 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 97 people with the surname Ynocencio. That is different from the site's living-bearer estimate (111), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Ynocencio.
Has Ynocencio become more or less common over time?
Between 2010 and 2020, the surname Ynocencio went from 104 recorded bearers to 97. That is a decrease of 7 (-6.7%). In the national ranking it fell from #156,044 to #156,449.
What does the Census say about the background of Ynocencio?
Among Census respondents with the surname Ynocencio, the largest self-reported group is Hispanic at 75.3%. The next largest groups are White (21.6%) and Two or More Races (2.1%). 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?
Hispanic is the largest self-reported group for the surname Ynocencio in the 2020 Census, accounting for 75.3% (73 people in the source table).
What is the full ancestry breakdown?
Ynocencio appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (75.3%), White (21.6%), Two or More Races (2.1%). 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 Ynocencio (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 Ynocencio mean?
A Spanish surname derived from "inocencio," meaning innocence or innocency. 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 Ynocencio (0.03 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 Ynocencio?
For a quick modern take, check how many people have the surname Ynocencio on our sister site HowManyOfMe.org.