2000
#20,234
National surname rank
Recorded bearers 1,224
First available Census row
Per 100,000 0.45
Rare Last name
Inzunza
A Spanish surname derived from the Basque word for bramble or blackberry.
According to the 2020 US Census Bureau surname tables, roughly 2,229 Americans carry the last name Inzunza. That puts it at #14,681 in the national surname ranking, appearing at a frequency of 0.65 per 100,000 people (about 1 in 153,770 residents).
This page is the full Name Census profile for the Inzunza 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
2.2K
1 in 153,770
Census rank
#14,681
2020 decennial data
Per 100,000
0.7
Frequency rate
Recorded bearers
1.9K
rare in the US
Popularity narrative
The Census Bureau recorded 1,944 bearers of the surname Inzunza in its 2020 decennial surname file. At a rate of 0.65 per 100,000 residents, it holds the 14681st position in the national surname ranking.
Among Census respondents with the surname Inzunza, the largest self-reported group is Hispanic at 96.5%. The next largest groups are White (2.8%) and American Indian/Alaska Native (0.4%).
Origin
Meaning and origin of Inzunza
The surname "INZUNZA" has its origins in the Basque region of northern Spain and southwestern France, tracing back to the late medieval period. It is believed to have derived from the Basque word "intzuntza," meaning "oak tree" or "oak forest," suggesting that the name may have been initially associated with individuals who lived near or worked in areas abundant with oak trees.
One of the earliest known records of the name "INZUNZA" can be found in the archives of the town of Azpeitia, located in the Basque province of Gipuzkoa, Spain. A document dated 1478 mentions a certain "Juan de Inzunza" as a landowner in the area. This provides evidence that the name was already in use during the latter part of the 15th century.
In the 16th century, the name appears in various historical documents related to the Spanish conquest and colonization of the Americas. One notable figure was Juan de Inzunza, a Spanish conquistador who participated in the conquest of Mexico alongside Hernán Cortés in the 1520s. He later settled in the city of Puebla, where he was granted land and became a prominent figure in the local community.
Another individual of historical significance was Pedro de Inzunza, a Basque shipbuilder who lived in the late 16th and early 17th centuries. He was renowned for his expertise in constructing galleons and other large vessels for the Spanish Armada. His skills were highly valued by the Spanish Crown during a time when naval power was crucial.
In the 18th century, the name "INZUNZA" can be found in various ecclesiastical records from the Basque region. One such example is Fray Tomás de Inzunza, a Franciscan friar who served as a missionary in the Spanish colonies of the Americas. He was born in the town of Tolosa, Gipuzkoa, in 1712 and spent several years working among the indigenous populations of present-day Mexico and California.
Another notable figure was Juan Bautista de Inzunza, a Basque military officer who fought in the Spanish Army during the Napoleonic Wars in the early 19th century. He rose to the rank of Colonel and was awarded various military honors for his bravery and leadership on the battlefield.
Throughout the centuries, the surname "INZUNZA" has maintained its presence in various regions of Spain, particularly in the Basque Country and neighboring areas. While it may not be among the most common surnames, it has left its mark in historical records and continues to be carried by families with roots in the ancient Basque culture.
Demographics
Ancestry and ethnicity for Inzunza
Among Census respondents with the surname Inzunza, the largest self-reported group is Hispanic at 96.5%. The next largest groups are White (2.8%) and American Indian/Alaska Native (0.4%).
The bar chart below shows how Inzunza 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 Inzunza surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino96.5% · 1,876
- White2.8% · 55
- American Indian and Alaska Native0.4% · 8
- Black or African American0.2% · 3
- Asian and Pacific Islander0.1% · 2
Timeline
Historical Census data for Inzunza
Inzunza 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
#15,250
National surname rank
Recorded bearers 1,928
+704 bearers (+57.5%)
Per 100,000 0.65
Rank movement Up 4,984 places
2020
#14,681
National surname rank
Recorded bearers 1,944
+16 bearers (+0.8%)
Per 100,000 0.65
Rank movement Up 569 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #20,234 | 1,224 | 0.45 | First available Census row | First available Census row |
| 2010 | #15,250 | 1,928 | 0.65 | +704 bearers (+57.5%) | Up 4,984 places |
| 2020 | #14,681 | 1,944 | 0.65 | +16 bearers (+0.8%) | Up 569 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 Inzunza 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 | #15,250 | #14,681 | 3.7% |
| Count | 1,928 | 1,944 | 0.8% |
| Per 100K | 0.65 | 0.65 | 0.1% |
Between the 2010 and 2020 Census, the number of Inzunza bearers went from 1,928 to 1,944 (+0.8% change). The surname moved up 569 positions in the national ranking, going from #15,250 to #14,681.
FAQ
Inzunza surname: questions and answers
How many people in the U.S. have the surname Inzunza?
Name Census estimates that about 2,229 living Americans carry the surname Inzunza. Using the current population baseline, that works out to roughly 1 in 153,770 residents.
How common is Inzunza?
Inzunza ranks #14,681 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.65 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 1,944 people with the surname Inzunza. That is different from the site's living-bearer estimate (2,229), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.65 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.65 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 Inzunza.
Has Inzunza become more or less common over time?
Between 2010 and 2020, the surname Inzunza went from 1,928 recorded bearers to 1,944. That is an increase of 16 (+0.8%). In the national ranking it rose from #15,250 to #14,681.
What does the Census say about the background of Inzunza?
Among Census respondents with the surname Inzunza, the largest self-reported group is Hispanic at 96.5%. The next largest groups are White (2.8%) and American Indian/Alaska Native (0.4%). 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 Inzunza in the 2020 Census, accounting for 96.5% (1,876 people in the source table).
What is the full ancestry breakdown?
Inzunza appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (96.5%), White (2.8%), American Indian/Alaska Native (0.4%). 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 Inzunza (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 Inzunza mean?
A Spanish surname derived from the Basque word for bramble or blackberry. 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 Inzunza (0.65 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 Inzunza?
If you just want to know how many Americans have the surname Inzunza, HowManyOfMe.org gives you the headline number in one glance.