2000
#16,160
National surname rank
Recorded bearers 1,645
First available Census row
Per 100,000 0.61
Rare Last name
Aguado
Derived from the Spanish word "aguado," meaning watered down or diluted, likely referring to a person who dilutes wine.
According to the 2020 US Census Bureau surname tables, roughly 2,665 Americans carry the last name Aguado. That puts it at #12,685 in the national surname ranking, appearing at a frequency of 0.78 per 100,000 people (about 1 in 128,613 residents).
This page is the full Name Census profile for the Aguado 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
2.7K
1 in 128,613
Census rank
#12,685
2020 decennial data
Per 100,000
0.8
Frequency rate
Recorded bearers
2.3K
rare in the US
Popularity narrative
The Census Bureau recorded 2,324 bearers of the surname Aguado in its 2020 decennial surname file. At a rate of 0.78 per 100,000 residents, it holds the 12685th position in the national surname ranking.
Among Census respondents with the surname Aguado, the largest self-reported group is Hispanic at 85.0%. The next largest groups are White (9.6%) and Asian/Pacific Islander (4.2%).
Origin
Meaning and origin of Aguado
The surname "AGUADO" originated in Spain, with its earliest known records dating back to the 12th century. It is believed to be derived from the Spanish word "agua," meaning water, and likely referred to someone who lived near a body of water or a location associated with water.
The name's first appearance can be traced to the medieval Kingdom of Castile, where it was documented in various historical records and manuscripts. It is mentioned in the Becerro de las Behetrías, a 14th-century census of landowners and vassals in Castile.
One of the earliest recorded individuals with this surname was Pedro Aguado, a Spanish conquistador and explorer who participated in the conquest of present-day Colombia and Venezuela in the 16th century. He authored a chronicle titled "Recopilación Historial" about the expeditions he took part in.
Another notable figure was Juan Bautista Aguado, a 17th-century Spanish painter known for his religious works and portraits. He was born in Madrid in 1627 and died in the same city in 1688.
In the 18th century, Antonio Aguado y Churruca, a Spanish merchant and financier, gained prominence. Born in 1784, he amassed a fortune through his business dealings and became a prominent figure in the Spanish court, serving as a banker to King Ferdinand VII.
During the 19th century, Alejandro Aguado, a Spanish military officer and politician, played a significant role in the Peninsular War against the French Empire. He was born in Seville in 1784 and died in Madrid in 1842.
Another notable individual with the surname Aguado was Rafael Aguado, a Spanish sculptor and painter active in the late 19th and early 20th centuries. He was born in Madrid in 1854 and is known for his contributions to the Spanish artistic renaissance of that period.
The surname "AGUADO" has been widely dispersed throughout Spain and its former colonies, with variations in spelling and pronunciation occurring over time. It continues to be a prominent surname in various Spanish-speaking regions, reflecting its deep historical roots and connections to the Iberian Peninsula.
Demographics
Ancestry and ethnicity for Aguado
Among Census respondents with the surname Aguado, the largest self-reported group is Hispanic at 85.0%. The next largest groups are White (9.6%) and Asian/Pacific Islander (4.2%).
The bar chart below shows how Aguado 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 Aguado surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino85.0% · 1,976
- White9.6% · 222
- Asian and Pacific Islander4.2% · 97
- Two or more races0.5% · 12
- Black or African American0.4% · 10
- American Indian and Alaska Native0.3% · 7
Timeline
Historical Census data for Aguado
Aguado 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
#12,953
National surname rank
Recorded bearers 2,371
+726 bearers (+44.1%)
Per 100,000 0.80
Rank movement Up 3,207 places
2020
#12,685
National surname rank
Recorded bearers 2,324
-47 bearers (-2.0%)
Per 100,000 0.78
Rank movement Up 268 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #16,160 | 1,645 | 0.61 | First available Census row | First available Census row |
| 2010 | #12,953 | 2,371 | 0.80 | +726 bearers (+44.1%) | Up 3,207 places |
| 2020 | #12,685 | 2,324 | 0.78 | -47 bearers (-2.0%) | Up 268 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 Aguado 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 | #12,953 | #12,685 | 2.1% |
| Count | 2,371 | 2,324 | -2.0% |
| Per 100K | 0.80 | 0.78 | -2.8% |
Between the 2010 and 2020 Census, the number of Aguado bearers went from 2,371 to 2,324 (-2.0% change). The surname moved up 268 positions in the national ranking, going from #12,953 to #12,685.
FAQ
Aguado surname: questions and answers
How many people in the U.S. have the surname Aguado?
Name Census estimates that about 2,665 living Americans carry the surname Aguado. Using the current population baseline, that works out to roughly 1 in 128,613 residents.
How common is Aguado?
Aguado ranks #12,685 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.78 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 2,324 people with the surname Aguado. That is different from the site's living-bearer estimate (2,665), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.78 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.78 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 Aguado.
Has Aguado become more or less common over time?
Between 2010 and 2020, the surname Aguado went from 2,371 recorded bearers to 2,324. That is a decrease of 47 (-2.0%). In the national ranking it rose from #12,953 to #12,685.
What does the Census say about the background of Aguado?
Among Census respondents with the surname Aguado, the largest self-reported group is Hispanic at 85.0%. The next largest groups are White (9.6%) and Asian/Pacific Islander (4.2%). 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 Aguado in the 2020 Census, accounting for 85.0% (1,976 people in the source table).
What is the full ancestry breakdown?
Aguado appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (85.0%), White (9.6%), Asian/Pacific Islander (4.2%). 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 Aguado (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 Aguado mean?
Derived from the Spanish word "aguado," meaning watered down or diluted, likely referring to a person who dilutes wine. 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 Aguado (0.78 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 Aguado?
Find out how many people have the last name Aguado on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.