2000
#8,562
National surname rank
First available Census row
An Irish occupational surname referring to a carpenter or builder, derived from the Irish Gaelic "Mac an Trénora."
According to the 2020 US Census Bureau surname tables, roughly 4,164 Americans carry the last name Traynor. That puts it at #8,677 in the national surname ranking, appearing at a frequency of 1.21 per 100,000 people (about 1 in 82,314 residents).
This page is the full Name Census profile for the Traynor 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 Traynor with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
4.2K
1 in 82,314
Census rank
#8,677
2020 decennial data
Per 100,000
1.2
Frequency rate
Recorded bearers
3.6K
rare in the US
Popularity narrative
The Census Bureau recorded 3,631 bearers of the surname Traynor in its 2020 decennial surname file. At a rate of 1.21 per 100,000 residents, it holds the 8677th position in the national surname ranking.
Among Census respondents with the surname Traynor, the largest self-reported group is White at 89.8%. The next largest groups are Hispanic (3.9%) and Two or More Races (3.0%).
Origin
The surname Traynor has its origins in Ireland, specifically in the northern counties of Ulster. It is believed to have derived from the Gaelic name "O'Treanoir," which means "descendant of the strong man" or "descendant of the powerful one." This name can be traced back to the 12th century.
The earliest recorded instances of the name Traynor can be found in the Annals of Ulster, a chronicle of medieval Irish history written by monks in the 15th century. The Annals mention several individuals with the name, including Aedh O'Treanoir, who was a leader in County Armagh in the 1300s.
In the 16th century, the name appeared in various administrative records and legal documents, such as the Fiants of the Tudor monarchy in Ireland. One notable individual from this period was Seamus Traynor, who was a landowner in County Antrim in the late 1500s.
As the centuries passed, the name spread to other parts of Ireland, and various spelling variations emerged, including Traynor, Treanor, and Trainor. These variations reflect the differences in pronunciation and local dialects across the island.
One of the earliest known individuals with the surname Traynor was Patrick Traynor, a Roman Catholic priest born in County Armagh in the late 17th century. He was a prominent figure during the Penal Laws era, when Catholics faced significant discrimination and persecution in Ireland.
Another notable figure was Micheal Traynor, born in County Down in 1768, who was a renowned Irish harpist and composer. He was one of the last great practitioners of the ancient Irish harp tradition and played a significant role in preserving this cultural heritage.
In the 19th century, several Traynors gained prominence in various fields. Michael Traynor (1807-1866) was an Irish politician and Member of Parliament for County Armagh. John Traynor (1828-1899) was a successful businessman and philanthropist from County Tyrone, known for his support of education and charitable causes.
As the Irish diaspora spread worldwide, the surname Traynor travelled with emigrants to various countries, including the United States, Canada, Australia, and New Zealand. Individuals with this surname can be found in numerous professions and walks of life, contributing to the rich tapestry of cultural diversity in their adopted homelands.
Demographics
Among Census respondents with the surname Traynor, the largest self-reported group is White at 89.8%. The next largest groups are Hispanic (3.9%) and Two or More Races (3.0%).
The bar chart below shows how Traynor 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 Traynor surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Traynor 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
+87 bearers (+2.5%)
2020
National surname rank
+3 bearers (+0.1%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #8,562 | 3,541 | 1.31 | First available Census row | First available Census row |
| 2010 | #9,013 | 3,628 | 1.23 | +87 bearers (+2.5%) | Down 451 places |
| 2020 | #8,677 | 3,631 | 1.21 | +3 bearers (+0.1%) | Up 336 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 Traynor 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 | #9,013 | #8,677 | 3.7% |
| Count | 3,628 | 3,631 | 0.1% |
| Per 100K | 1.23 | 1.21 | -1.2% |
Between the 2010 and 2020 Census, the number of Traynor bearers went from 3,628 to 3,631 (+0.1% change). The surname moved up 336 positions in the national ranking, going from #9,013 to #8,677.
FAQ
Name Census estimates that about 4,164 living Americans carry the surname Traynor. Using the current population baseline, that works out to roughly 1 in 82,314 residents.
Traynor ranks #8,677 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.21 per 100,000 residents, which is about 1 people out of every 100,000.
The raw 2020 Census file counted 3,631 people with the surname Traynor. That is different from the site's living-bearer estimate (4,164), 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 1.21 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 Traynor.
Between 2010 and 2020, the surname Traynor went from 3,628 recorded bearers to 3,631. That is an increase of 3 (+0.1%). In the national ranking it rose from #9,013 to #8,677.
Among Census respondents with the surname Traynor, the largest self-reported group is White at 89.8%. The next largest groups are Hispanic (3.9%) and Two or More Races (3.0%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Traynor in the 2020 Census, accounting for 89.8% (3,261 people in the source table).
Traynor appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (89.8%), Hispanic (3.9%), Two or More Races (3.0%). 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 Traynor (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.
An Irish occupational surname referring to a carpenter or builder, derived from the Irish Gaelic "Mac an Trénora." 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 Traynor (1.21 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
Our sister site HowManyOfMe.org answers how many Americans have the surname Traynor at a glance, with the living-bearer count up front.