2010
#140,157
National surname rank
Recorded bearers 119
First available Census row
Per 100,000 0.04
Very Rare Last name
Ynzunza
A Basque topographic surname referring to someone living near a hazelnut tree.
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Ynzunza. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Ynzunza 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Ynzunza in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Ynzunza, the largest self-reported group is Hispanic at 89.1%. The next largest groups are White (6.4%) and Asian/Pacific Islander (1.8%).
Origin
Meaning and origin of Ynzunza
The surname Ynzunza is of Basque origin, a region located in Northern Spain and Southern France. Its roots can be traced back to medieval times, likely originating in the Basque Country during the 11th or 12th century. The name is thought to be derived from the Basque words "Inzunza" or "Intzu" which could relate to places abundantly surrounded by hazel trees. The suffix "za" typically means "place" in the Basque language, suggesting that Ynzunza could mean "place of hazels."
One of the earliest recorded mentions of a similar name appears in medieval manuscripts, with variations such as "Inzunza" or "Inzuza". These early forms indicate an established presence in the region, particularly in the rural and mountainous areas of the Basque Country. Historical references include church records, tax documents, and property deeds from the 14th and 15th centuries. The Basque region's tradition of surnames derived from geographical locations confirms the name's origin as being tied to the landscape.
An early recorded example of the surname Ynzunza is Juan Ynzunza, a Basque farmer mentioned in a 15th-century land transaction document. Another reference is Maria Ynzunza, documented as a resident of the Biscay province in Spain during the late 16th century. These mentions highlight the name's longstanding presence within the local communities.
By the late 17th and early 18th centuries, Ynzunza had spread to different parts of Spain. One notable individual is Martin Ynzunza, who was involved in the fishing trade in the coastal town of Bermeo around the early 1700s. His records are found in trade and shipping registers of the time.
In more recent historical records, specifically from the 19th century, the name appears in the context of emigration. Basque families, including those bearing the surname Ynzunza, moved to the Americas seeking better opportunities. Among them was Francisco Ynzunza, documented as one of the early Basque settlers in Uruguay in the 1880s.
Another prominent figure with the surname is Luis Ynzunza, a Basque nationalist born in 1890 who played a role in the early 20th-century political movements advocating for Basque autonomy. His contributions were noted in political writings and correspondence from the period.
Thus, throughout history, the surname Ynzunza has remained distinctly tied to its Basque roots, reflecting the region's linguistic and cultural heritage. Its bearers have been documented across various centuries and continents, contributing to the diaspora and maintaining a connection to the Basque homeland.
Demographics
Ancestry and ethnicity for Ynzunza
Among Census respondents with the surname Ynzunza, the largest self-reported group is Hispanic at 89.1%. The next largest groups are White (6.4%) and Asian/Pacific Islander (1.8%).
The bar chart below shows how Ynzunza 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 Ynzunza surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino89.1% · 98
- White6.4% · 7
- Asian and Pacific Islander1.8% · 2
- Two or more races1.8% · 2
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Ynzunza
Ynzunza 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
#149,446
National surname rank
Recorded bearers 110
-9 bearers (-7.6%)
Per 100,000 0.04
Rank movement Down 9,289 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #140,157 | 119 | 0.04 | First available Census row | First available Census row |
| 2020 | #149,446 | 110 | 0.04 | -9 bearers (-7.6%) | Down 9,289 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 Ynzunza 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 | #140,157 | #149,446 | -6.6% |
| Count | 119 | 110 | -7.6% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Ynzunza bearers went from 119 to 110 (-7.6% change). The surname moved down 9,289 positions in the national ranking, going from #140,157 to #149,446.
FAQ
Ynzunza surname: questions and answers
How many people in the U.S. have the surname Ynzunza?
Name Census estimates that about 126 living Americans carry the surname Ynzunza. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
How common is Ynzunza?
Ynzunza ranks #149,446 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 110 people with the surname Ynzunza. That is different from the site's living-bearer estimate (126), 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 Ynzunza.
Has Ynzunza become more or less common over time?
Between 2010 and 2020, the surname Ynzunza went from 119 recorded bearers to 110. That is a decrease of 9 (-7.6%). In the national ranking it fell from #140,157 to #149,446.
What does the Census say about the background of Ynzunza?
Among Census respondents with the surname Ynzunza, the largest self-reported group is Hispanic at 89.1%. The next largest groups are White (6.4%) and Asian/Pacific Islander (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?
Hispanic is the largest self-reported group for the surname Ynzunza in the 2020 Census, accounting for 89.1% (98 people in the source table).
What is the full ancestry breakdown?
Ynzunza appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (89.1%), White (6.4%), Asian/Pacific Islander (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 Ynzunza (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 Ynzunza mean?
A Basque topographic surname referring to someone living near a hazelnut tree. 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 Ynzunza (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 are called Ynzunza?
Our sister site HowManyOfMe.org answers how many people are called Ynzunza at a glance, with the living-bearer count up front.