Treharne last name popularity, history, and meaning

Find out how popular the last name Treharne is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Treharne.

Meaning of Treharne

A locational surname derived from a place name in Wales.

Treharne, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Treharne surname is from the 2010 census data.

Popularity of Treharne in America

Treharne is the 62531st most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Treharne surname appeared 320 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname Treharne.

We can also compare 2010 data for Treharne to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

2010 2000 Change (%)
Rank 62531 61713 1.32%
Count 320 304 5.13%
Proportion per 100k 0.11 0.11 0.00%

The history of the last name Treharne

The surname TREHARNE has its origins in Wales, dating back to the 12th century. It is believed to be derived from the Welsh words "tre" meaning homestead or town, and "harn" meaning iron or ironworks, indicating a connection to a settlement or village associated with iron production.

One of the earliest recorded instances of the name can be found in the Black Book of St. David's, a medieval manuscript from the 13th century, where it appears as "Treharne" or "Treharan". This suggests that the name was well-established in Wales by that time.

During the Middle Ages, the TREHARNE family was particularly prominent in the counties of Pembrokeshire and Carmarthenshire, where they held lands and played a significant role in local affairs. Some notable individuals from this period include Rhys ap Treharne, a Welsh landowner and military leader who fought in the Welsh Wars of Independence in the late 13th century.

As the centuries progressed, the spelling of the name evolved, with variations such as Treharne, Treheron, and Treheron appearing in historical records. One notable bearer of the name was Sir John Treharne (1603-1681), a Welsh landowner and Member of Parliament during the English Civil War.

In the 18th century, a branch of the TREHARNE family settled in Glamorgan, where they became prominent landowners and industrialists. One of the most notable figures from this period was John Treharne (1749-1828), a successful ironmaster and coal owner, who played a significant role in the industrialization of South Wales.

Other notable individuals with the surname TREHARNE include Sir Evan Treharne (1792-1870), a Welsh judge and Member of Parliament, and Sir Hubert Treharne (1864-1944), a British soldier and colonial administrator who served as Governor of the Falkland Islands and British Guiana.

Throughout its history, the TREHARNE surname has maintained a strong connection to Wales, with many bearers of the name playing important roles in the social, political, and economic life of the region.

Race and ethnic origin of people with the last name Treharne

We also have some data on the ancestry of people with the surname Treharne.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:

  1. White only
  2. Black only
  3. American Indian and Alaskan Native only
  4. Asian and Pacific Islander only
  5. Hispanic
  6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Treharne was:

Race/Ethnicity Percentage Total Occurrences
Non-Hispanic White Only 93.44% 299
Non-Hispanic Black Only (S)% (S)
Non-Hispanic Asian and Pacific Islander Only (S)% (S)
Non-Hispanic American Indian and Alaskan Native 0.00% 0
Non-Hispanic of Two or More Races 1.56% 5
Hispanic Origin 4.06% 13

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Treharne has changed in the 10 years between the two census surveys.

2010 2000 Change (%)
White 93.44% 94.74% -1.38%
Black (S)% (S)% (S)%
Asian and Pacific Islander (S)% (S)% (S)%
American Indian and Alaskan Native 0.00% (S)% (S)%
Two or More Races 1.56% (S)% (S)%
Hispanic 4.06% 2.96% 31.34%

Data source

The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.

The history and meaning of the name Treharne was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Treharne, please contact us.

Reference this page

We spend a lot of resources downloading, cleaning, merging, and formatting the data that is shown on the site.

If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

"Treharne last name popularity, history, and meaning". NameCensus.com. Accessed on May 15, 2025. http://namecensus.com/last-names/treharne-surname-popularity/.

"Treharne last name popularity, history, and meaning". NameCensus.com, http://namecensus.com/last-names/treharne-surname-popularity/. Accessed 15 May, 2025

Treharne last name popularity, history, and meaning. NameCensus.com. Retrieved from http://namecensus.com/last-names/treharne-surname-popularity/.

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