2000
#7,028
National surname rank
First available Census row
A Spanish habitational surname denoting someone from any of the various places named Garduño.
According to the 2020 US Census Bureau surname tables, roughly 7,753 Americans carry the last name Garduno. That puts it at #5,027 in the national surname ranking, appearing at a frequency of 2.26 per 100,000 people (about 1 in 44,209 residents).
This page is the full Name Census profile for the Garduno 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
7.8K
1 in 44,209
Census rank
#5,027
2020 decennial data
Per 100,000
2.3
Frequency rate
Recorded bearers
6.8K
rare in the US
Popularity narrative
The Census Bureau recorded 6,761 bearers of the surname Garduno in its 2020 decennial surname file. At a rate of 2.26 per 100,000 residents, it holds the 5027th position in the national surname ranking.
Among Census respondents with the surname Garduno, the largest self-reported group is Hispanic at 92.2%. The next largest groups are White (6.3%) and Asian/Pacific Islander (0.5%).
Origin
The surname Garduno originated in Spain, and its roots can be traced back to the medieval period. The earliest known spelling of the name was "Garduño," derived from the Basque words "garro" and "uno," which together mean "thick and rough hair" or "shaggy." This suggests that the name might have been initially used as a nickname for someone with a particularly unkempt appearance or thick, coarse hair.
One of the earliest recorded instances of the Garduno name can be found in the Becerro de Beneficios de la Iglesia de Castilla, a 14th-century ecclesiastical document that documented the distribution of church benefices in the Kingdom of Castile. In this record, a certain "Juan Garduño" is mentioned as a cleric in the diocese of Palencia.
The name Garduno also appears in various historical records from the 15th and 16th centuries, particularly in the regions of Castile and Andalusia. For example, the famous Spanish historian and philosopher Rodrigo Sánchez de Arévalo, who lived from 1404 to 1470, mentions a "Diego Garduño" in his writings, describing him as a prominent merchant and landowner in the city of Seville.
During the 16th and 17th centuries, several individuals bearing the Garduno surname played significant roles in the exploration and colonization of the Americas. One notable figure was Juan Garduno, a Spanish conquistador who participated in the conquest of Mexico alongside Hernán Cortés in the early 1500s. Another was Pedro Garduno, a 17th-century explorer and cartographer who mapped parts of the Pacific Northwest and contributed to the expansion of Spanish settlements in what is now California.
As the centuries progressed, the Garduno name continued to spread across Spain and its territories, with various branches of the family establishing themselves in different regions. In the 18th century, a prominent military figure named Antonio Garduno served as a captain in the Spanish army and played a role in the defense of the city of Cartagena de Indias against British forces during the War of Jenkins' Ear.
In the 19th century, the Garduno surname gained further recognition through the accomplishments of individuals such as José María Garduno, a renowned Mexican lawyer and politician who served as a deputy in the Mexican Congress and played a crucial role in drafting several legal codes.
Demographics
Among Census respondents with the surname Garduno, the largest self-reported group is Hispanic at 92.2%. The next largest groups are White (6.3%) and Asian/Pacific Islander (0.5%).
The bar chart below shows how Garduno 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 Garduno surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Garduno 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.
2000
National surname rank
First available Census row
2010
National surname rank
+2,515 bearers (+57.2%)
2020
National surname rank
-151 bearers (-2.2%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #7,028 | 4,397 | 1.63 | First available Census row | First available Census row |
| 2010 | #5,073 | 6,912 | 2.34 | +2,515 bearers (+57.2%) | Up 1,955 places |
| 2020 | #5,027 | 6,761 | 2.26 | -151 bearers (-2.2%) | Up 46 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
How has the Garduno surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #5,073 | #5,027 | 0.9% |
| Count | 6,912 | 6,761 | -2.2% |
| Per 100K | 2.34 | 2.26 | -3.3% |
Between the 2010 and 2020 Census, the number of Garduno bearers went from 6,912 to 6,761 (-2.2% change). The surname moved up 46 positions in the national ranking, going from #5,073 to #5,027.
FAQ
Name Census estimates that about 7,753 living Americans carry the surname Garduno. Using the current population baseline, that works out to roughly 1 in 44,209 residents.
Garduno ranks #5,027 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 2.26 per 100,000 residents, which is about 2 people out of every 100,000.
The raw 2020 Census file counted 6,761 people with the surname Garduno. That is different from the site's living-bearer estimate (7,753), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
It is the Census Bureau's normalized frequency measure. A rate of 2.26 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 2 of them to have the surname Garduno.
Between 2010 and 2020, the surname Garduno went from 6,912 recorded bearers to 6,761. That is a decrease of 151 (-2.2%). In the national ranking it rose from #5,073 to #5,027.
Among Census respondents with the surname Garduno, the largest self-reported group is Hispanic at 92.2%. The next largest groups are White (6.3%) and Asian/Pacific Islander (0.5%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Hispanic is the largest self-reported group for the surname Garduno in the 2020 Census, accounting for 92.2% (6,236 people in the source table).
Garduno appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (92.2%), White (6.3%), Asian/Pacific Islander (0.5%). 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.
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 Garduno (2000, 2010, 2020).
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.
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.
A Spanish habitational surname denoting someone from any of the various places named Garduño. The fuller origin note on this page goes into more detail.
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.
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 Garduno (2.26 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.