2000
#5,753
National surname rank
Recorded bearers 5,509
First available Census row
Per 100,000 2.04
Rare Last name
Hanrahan
Derived from the Irish Ó hAnnracháin, meaning "descendant of Annrachán," a personal name of unknown meaning.
According to the 2020 US Census Bureau surname tables, roughly 6,250 Americans carry the last name Hanrahan. That puts it at #6,054 in the national surname ranking, appearing at a frequency of 1.82 per 100,000 people (about 1 in 54,841 residents).
This page is the full Name Census profile for the Hanrahan 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 Hanrahan with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
6.3K
1 in 54,841
Census rank
#6,054
2020 decennial data
Per 100,000
1.8
Frequency rate
Recorded bearers
5.5K
rare in the US
Popularity narrative
The Census Bureau recorded 5,450 bearers of the surname Hanrahan in its 2020 decennial surname file. At a rate of 1.82 per 100,000 residents, it holds the 6054th position in the national surname ranking.
Among Census respondents with the surname Hanrahan, the largest self-reported group is White at 92.1%. The next largest groups are Hispanic (3.3%) and Two or More Races (3.2%).
Origin
Meaning and origin of Hanrahan
The surname Hanrahan originated in Ireland, with its earliest recorded use dating back to the 12th century. It is derived from the Irish Gaelic name "O'hAnradhain," which means "descendant of Anradhan." Anradhan was a personal name composed of two elements: the Irish word "an," meaning vigor or strength, and "radh," meaning speech or utterance.
The name was particularly prevalent in the southern regions of Ireland, especially in counties Cork and Kerry. Some of the earliest recorded instances of the name can be found in the Annals of Inisfallen, a chronicle of medieval Irish history written between the 11th and 13th centuries.
During the 16th and 17th centuries, the Hanrahan name appeared in various Irish manuscripts and records, such as the Fiants of the Tudor Sovereigns and the Irish Patent Rolls. These documents often mentioned individuals with the surname in connection with land grants, legal disputes, and other official matters.
One of the earliest known individuals bearing the Hanrahan surname was Donnchadh O'Hanrahan, a renowned Irish poet and scholar who lived in the late 14th century. He was a member of the renowned Bardic family of poets and historians from County Sligo.
Another notable figure was Captain James Hanrahan, an Irish soldier who served in the Spanish Army of Flanders during the Eighty Years' War (1568-1648). He fought alongside the famous Irish commander, Hugh O'Neill, Earl of Tyrone, in the Battle of Nieuport in 1600.
In the 18th century, John Hanrahan (1737-1801) was a prominent Catholic priest and scholar from County Cork. He played a significant role in preserving Irish language and culture during a time of oppression against Catholics in Ireland.
Mary Hanrahan (1833-1905) was a renowned Irish language scholar and writer from County Limerick. She published several works, including a collection of Irish folklore and legends, and contributed to the preservation of the Irish language.
Michael Hanrahan (1870-1944) was a prominent Irish republican and politician from County Clare. He was a member of the Irish Parliamentary Party and served as a Member of Parliament (MP) in the British House of Commons from 1917 to 1922.
Demographics
Ancestry and ethnicity for Hanrahan
Among Census respondents with the surname Hanrahan, the largest self-reported group is White at 92.1%. The next largest groups are Hispanic (3.3%) and Two or More Races (3.2%).
The bar chart below shows how Hanrahan 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 Hanrahan surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.1% · 5,017
- Hispanic or Latino3.3% · 179
- Two or more races3.2% · 172
- Asian and Pacific Islander1.0% · 53
- Black or African American0.4% · 22
- American Indian and Alaska Native0.1% · 7
Timeline
Historical Census data for Hanrahan
Hanrahan 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
#6,141
National surname rank
Recorded bearers 5,578
+69 bearers (+1.3%)
Per 100,000 1.89
Rank movement Down 388 places
2020
#6,054
National surname rank
Recorded bearers 5,450
-128 bearers (-2.3%)
Per 100,000 1.82
Rank movement Up 87 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #5,753 | 5,509 | 2.04 | First available Census row | First available Census row |
| 2010 | #6,141 | 5,578 | 1.89 | +69 bearers (+1.3%) | Down 388 places |
| 2020 | #6,054 | 5,450 | 1.82 | -128 bearers (-2.3%) | Up 87 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 Hanrahan 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 | #6,141 | #6,054 | 1.4% |
| Count | 5,578 | 5,450 | -2.3% |
| Per 100K | 1.89 | 1.82 | -3.5% |
Between the 2010 and 2020 Census, the number of Hanrahan bearers went from 5,578 to 5,450 (-2.3% change). The surname moved up 87 positions in the national ranking, going from #6,141 to #6,054.
FAQ
Hanrahan surname: questions and answers
How many people in the U.S. have the surname Hanrahan?
Name Census estimates that about 6,250 living Americans carry the surname Hanrahan. Using the current population baseline, that works out to roughly 1 in 54,841 residents.
How common is Hanrahan?
Hanrahan ranks #6,054 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.82 per 100,000 residents, which is about 2 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 5,450 people with the surname Hanrahan. That is different from the site's living-bearer estimate (6,250), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 1.82 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 1.82 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 Hanrahan.
Has Hanrahan become more or less common over time?
Between 2010 and 2020, the surname Hanrahan went from 5,578 recorded bearers to 5,450. That is a decrease of 128 (-2.3%). In the national ranking it rose from #6,141 to #6,054.
What does the Census say about the background of Hanrahan?
Among Census respondents with the surname Hanrahan, the largest self-reported group is White at 92.1%. The next largest groups are Hispanic (3.3%) and Two or More Races (3.2%). 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?
White is the largest self-reported group for the surname Hanrahan in the 2020 Census, accounting for 92.1% (5,017 people in the source table).
What is the full ancestry breakdown?
Hanrahan appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.1%), Hispanic (3.3%), Two or More Races (3.2%). 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 Hanrahan (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 Hanrahan mean?
Derived from the Irish Ó hAnnracháin, meaning "descendant of Annrachán," a personal name of unknown meaning. 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 Hanrahan (1.82 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 Hanrahan?
You can see how many people have the last name Hanrahan on our sister site HowManyOfMe.org — same data roots, lighter UI.