2000
#62,775
National surname rank
Recorded bearers 298
First available Census row
Per 100,000 0.11
Very Rare Last name
Aherne
Derived from the Irish Ó hEachtighearna, meaning "descendant of Eachtighearna," a personal name meaning "horse lord" or "horse master."
According to the 2020 US Census Bureau surname tables, roughly 331 Americans carry the last name Aherne. That puts it at #72,473 in the national surname ranking, appearing at a frequency of 0.10 per 100,000 people (about 1 in 1,035,512 residents).
This page is the full Name Census profile for the Aherne 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.
For British records, Name Census UK has a British surname profile for Aherne with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
331
1 in 1,035,512
Census rank
#72,473
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
289
very rare in the US
Popularity narrative
The Census Bureau recorded 289 bearers of the surname Aherne in its 2020 decennial surname file. At a rate of 0.10 per 100,000 residents, it holds the 72473rd position in the national surname ranking.
Among Census respondents with the surname Aherne, the largest self-reported group is White at 92.0%. The next largest groups are Hispanic (4.5%) and Two or More Races (1.7%).
Origin
Meaning and origin of Aherne
The surname Aherne has its roots in Ireland, tracing back to the 16th century. It is an Anglicized form of the Irish Gaelic name Ó hEachairn, which means "descendant of Eachairn." Eachairn was a personal name derived from the Old Irish word "ech," meaning horse.
One of the earliest recorded instances of the name Aherne can be found in the Annals of the Four Masters, a chronicle of medieval Irish history. It mentions an influential family named Ó hEachairn from County Cork in the 16th century.
The Aherne surname is closely associated with County Cork, particularly the baronies of Imokilly and Barrymore. The Ahernes were a prominent clan in this region and held significant landholdings and influence during the 16th and 17th centuries.
In the 17th century, several members of the Aherne family were involved in the Irish Confederacy Wars, fighting against the English forces. One notable figure was Donough Aherne, a captain in the Confederate Catholic Army, who was active during the 1640s.
Another prominent individual bearing the surname was Maurice Aherne, born in 1682 in County Cork. He was a respected scholar and historian who wrote extensively on Irish antiquities and genealogy.
During the 18th century, the Aherne family had strong ties to the town of Castlemartyr in County Cork. Several members of the family served as local officials and landowners in the area.
In the 19th century, John Aherne (1810-1878) was a prominent Irish politician and businessman from County Cork. He was elected as a Member of Parliament for the constituency of Mitchelstown in 1857 and served until his death.
Another notable figure was William Aherne (1879-1942), a renowned Irish playwright and actor. He was born in County Cork and is best known for his works depicting rural Irish life, such as "The Whiteheaded Boy" and "The Blind Man's Bluff."
While the Aherne surname originated in Ireland, it has since spread to other parts of the world through immigration and diaspora. However, its roots and historical significance remain deeply rooted in the Irish counties of Cork and Kerry.
Demographics
Ancestry and ethnicity for Aherne
Among Census respondents with the surname Aherne, the largest self-reported group is White at 92.0%. The next largest groups are Hispanic (4.5%) and Two or More Races (1.7%).
The bar chart below shows how Aherne 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 Aherne surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.0% · 266
- Hispanic or Latino4.5% · 13
- Two or more races1.7% · 5
- Asian and Pacific Islander0.7% · 2
- American Indian and Alaska Native0.7% · 2
- Black or African American0.3% · 1
Timeline
Historical Census data for Aherne
Aherne 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
#69,793
National surname rank
Recorded bearers 281
-17 bearers (-5.7%)
Per 100,000 0.10
Rank movement Down 7,018 places
2020
#72,473
National surname rank
Recorded bearers 289
+8 bearers (+2.8%)
Per 100,000 0.10
Rank movement Down 2,680 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #62,775 | 298 | 0.11 | First available Census row | First available Census row |
| 2010 | #69,793 | 281 | 0.10 | -17 bearers (-5.7%) | Down 7,018 places |
| 2020 | #72,473 | 289 | 0.10 | +8 bearers (+2.8%) | Down 2,680 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 Aherne 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 | #69,793 | #72,473 | -3.8% |
| Count | 281 | 289 | 2.8% |
| Per 100K | 0.10 | 0.10 | -3.3% |
Between the 2010 and 2020 Census, the number of Aherne bearers went from 281 to 289 (+2.8% change). The surname moved down 2,680 positions in the national ranking, going from #69,793 to #72,473.
Notable bearers
Famous people with the surname Aherne
FAQ
Aherne surname: questions and answers
How many people in the U.S. have the surname Aherne?
Name Census estimates that about 331 living Americans carry the surname Aherne. Using the current population baseline, that works out to roughly 1 in 1,035,512 residents.
How common is Aherne?
Aherne ranks #72,473 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.10 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 289 people with the surname Aherne. That is different from the site's living-bearer estimate (331), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.1 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.10 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 Aherne.
Has Aherne become more or less common over time?
Between 2010 and 2020, the surname Aherne went from 281 recorded bearers to 289. That is an increase of 8 (+2.8%). In the national ranking it fell from #69,793 to #72,473.
What does the Census say about the background of Aherne?
Among Census respondents with the surname Aherne, the largest self-reported group is White at 92.0%. The next largest groups are Hispanic (4.5%) and Two or More Races (1.7%). 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?
White is the largest self-reported group for the surname Aherne in the 2020 Census, accounting for 92.0% (266 people in the source table).
What is the full ancestry breakdown?
Aherne appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.0%), Hispanic (4.5%), Two or More Races (1.7%). 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.
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 Aherne (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 Aherne mean?
Derived from the Irish Ó hEachtighearna, meaning "descendant of Eachtighearna," a personal name meaning "horse lord" or "horse master." 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 Aherne (0.10 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 Aherne?
Find out how many people are called Aherne on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.