2000
#2,650
National surname rank
First available Census row
Derived from a Basque word meaning "located on a steep hill or mountain" or "summit."
According to the 2020 US Census Bureau surname tables, roughly 18,924 Americans carry the last name Acuna. That puts it at #2,139 in the national surname ranking, appearing at a frequency of 5.52 per 100,000 people (about 1 in 18,112 residents).
This page is the full Name Census profile for the Acuna 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
19K
1 in 18,112
Census rank
#2,139
2020 decennial data
Per 100,000
5.5
Frequency rate
Recorded bearers
17K
uncommon in the US
Popularity narrative
The Census Bureau recorded 16,503 bearers of the surname Acuna in its 2020 decennial surname file. At a rate of 5.52 per 100,000 residents, it holds the 2139th position in the national surname ranking.
Among Census respondents with the surname Acuna, the largest self-reported group is Hispanic at 87.8%. The next largest groups are White (6.6%) and Asian/Pacific Islander (3.7%).
Origin
The surname Acuna originates from Spain and can be traced back to the 11th century. It is derived from the Spanish word "acuna," which means "cradle" or "to cradle." This suggests that the name may have been initially associated with families or individuals involved in the cradle-making trade or those who worked as midwives or nursemaids.
One of the earliest recorded instances of the Acuna name can be found in the Cartulario de Santillana, a medieval manuscript from the 12th century that documents various legal transactions and property records in the region of Cantabria, Spain. This historical document mentions several individuals bearing the Acuna surname, indicating their presence in the region during that time period.
In the 13th century, the Acuna family gained prominence and established themselves as a noble lineage in the Kingdom of León. One notable figure from this era was Juan Alonso de Acuna, who served as a knight and military commander during the reign of King Alfonso X of Castile and León (1252-1284).
During the 15th century, the Acuna name became associated with the town of Acuña, located in the province of León, Spain. It is believed that some members of the Acuna family may have taken on the name of this town as their surname, further solidifying the connection between the name and the region.
In the 16th century, Hernando de Acuña (1515-1580) was a renowned Spanish poet and historian who served as a soldier and diplomat under the reign of King Philip II. His literary works, including the epic poem "La Conquista de Granada," gained him recognition and contributed to the cultural legacy of the Acuna name.
Another notable figure was Cristóbal de Acuña (1597-1675), a Spanish Jesuit missionary and explorer who documented his expeditions along the Amazon River in South America. His account, "Nuevo Descubrimiento del Gran Río de las Amazonas," provided valuable insights into the region's geography and indigenous cultures.
As the Acuna family spread across Spain and its territories, the name also found its way to the Americas during the colonial era. One example is Juan de Acuña y Rodríguez (1661-1731), a Spanish military officer and governor who served in various provinces of New Spain (present-day Mexico).
These are just a few examples of individuals who have carried the Acuna surname throughout history, showcasing its enduring presence and significance within Spanish and Hispanic culture.
Demographics
Among Census respondents with the surname Acuna, the largest self-reported group is Hispanic at 87.8%. The next largest groups are White (6.6%) and Asian/Pacific Islander (3.7%).
The bar chart below shows how Acuna 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 Acuna surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Acuna 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
+4,146 bearers (+33.1%)
2020
National surname rank
-180 bearers (-1.1%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #2,650 | 12,537 | 4.65 | First available Census row | First available Census row |
| 2010 | #2,179 | 16,683 | 5.66 | +4,146 bearers (+33.1%) | Up 471 places |
| 2020 | #2,139 | 16,503 | 5.52 | -180 bearers (-1.1%) | Up 40 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 Acuna 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 | #2,179 | #2,139 | 1.8% |
| Count | 16,683 | 16,503 | -1.1% |
| Per 100K | 5.66 | 5.52 | -2.5% |
Between the 2010 and 2020 Census, the number of Acuna bearers went from 16,683 to 16,503 (-1.1% change). The surname moved up 40 positions in the national ranking, going from #2,179 to #2,139.
Notable bearers
FAQ
Name Census estimates that about 18,924 living Americans carry the surname Acuna. Using the current population baseline, that works out to roughly 1 in 18,112 residents.
Acuna ranks #2,139 in the 2020 Census surname tables and is classified on this site as "Uncommon." The Census recorded the name at a frequency of 5.52 per 100,000 residents, which is about 6 people out of every 100,000.
The raw 2020 Census file counted 16,503 people with the surname Acuna. That is different from the site's living-bearer estimate (18,924), 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 5.52 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 6 of them to have the surname Acuna.
Between 2010 and 2020, the surname Acuna went from 16,683 recorded bearers to 16,503. That is a decrease of 180 (-1.1%). In the national ranking it rose from #2,179 to #2,139.
Among Census respondents with the surname Acuna, the largest self-reported group is Hispanic at 87.8%. The next largest groups are White (6.6%) and Asian/Pacific Islander (3.7%). 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 Acuna in the 2020 Census, accounting for 87.8% (14,485 people in the source table).
Acuna appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (87.8%), White (6.6%), Asian/Pacific Islander (3.7%). 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 Acuna (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.
Derived from a Basque word meaning "located on a steep hill or mountain" or "summit." 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 Acuna (5.52 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.