NameCensus.
Very Rare Last name

Clennon

A surname of Irish origin referring to the son of a descendant.

According to the 2010 US Census Bureau surname tables, roughly 377 Americans carry the last name Clennon. That puts it at #61,899 in the national surname ranking, appearing at a frequency of 0.11 per 100,000 people (about 1 in 909,163 residents).

This page is the full Name Census profile for the Clennon surname. You will find the Census Bureau frequency data, 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

377

1 in 909,163

Census rank

#61,899

2010 decennial data

Per 100,000

0.1

Frequency rate

Recorded bearers

324

very rare in the US

Popularity narrative

The Census Bureau recorded 324 bearers of the surname Clennon in its 2010 decennial surname file. At a rate of 0.11 per 100,000 residents, it holds the 61899th position in the national surname ranking.

Among Census respondents with the surname Clennon, the largest self-reported group is White at 71.3%. The next largest groups are Black (26.2%) and Two or More Races (1.5%).

Origin

Meaning and origin of Clennon

The surname CLENNON has its origins in Ireland, emerging during the Middle Ages, around the 12th or 13th century. It is believed to be derived from the Gaelic word "cluain," meaning a fertile meadow or pasture land, combined with the diminutive suffix "-an," suggesting a smaller or lesser meadow.

One of the earliest recorded instances of the name can be found in the Irish Annals, which document a Gillachrist O'Clennon in the year 1264. This individual was likely from the northern regions of Ireland, where the name was more prevalent.

In the 16th century, the CLENNON surname appeared in various legal documents and land records, particularly in County Monaghan and surrounding areas. During this time, the name sometimes appeared as "Clennane" or "Clennan," reflecting regional variations in spelling and pronunciation.

The name CLENNON has strong ties to several historical figures throughout the centuries. One notable individual was John Clennon, a prominent merchant and landowner who lived in County Donegal in the late 17th century (born around 1650, died circa 1720). He was known for his business dealings and involvement in local affairs.

Another notable figure was Patrick Clennon, a Catholic priest and activist who lived in the late 18th century (born in 1745, died in 1819). He played a role in advocating for Catholic rights during a period of religious tensions in Ireland.

In the 19th century, the CLENNON surname gained further recognition with the birth of James Clennon (1826-1901), a successful businessman and philanthropist from County Fermanagh. He made significant contributions to various charitable causes and is remembered for his generosity.

Moving into the early 20th century, Mary Clennon (1892-1976) was a renowned Irish poet and author. Her works explored themes of nature, spirituality, and the experiences of rural life in Ireland.

Lastly, one cannot overlook the influence of Michael Clennon (1918-2003), a prominent Irish politician who served as a member of the Dáil Éireann (Irish Parliament) for several decades, representing County Sligo.

While the CLENNON surname has spread across various parts of the world due to migration and diaspora, its roots can be traced back to the fertile meadows of Ireland, where it originated and flourished throughout the centuries.

Demographics

Ancestry and ethnicity for Clennon

Among Census respondents with the surname Clennon, the largest self-reported group is White at 71.3%. The next largest groups are Black (26.2%) and Two or More Races (1.5%).

The bar chart below shows how Clennon bearers described their own race and ethnicity on the 2010 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.

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 Clennon surname at the time of the 2010 Census, not any inherent property of the name itself.

  • White71.3%
  • Black or African American26.2%
  • Two or more races1.5%
  • Unknown or suppressed0.9%

Year on year

2000 vs 2010 Census

How has the Clennon surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.

Census year comparison

20002010
Bearer countPer 100,000 residents20002010200020102793240.10.1
Metric 2000 2010 Change
Rank #66,274 #61,899 6.6%
Count 279 324 16.1%
Per 100K 0.10 0.11 10.0%

Between the 2000 and 2010 Census, the number of Clennon bearers went from 279 to 324 (+16.1% change). The surname moved up 4,375 positions in the national ranking, going from #66,274 to #61,899.

Notable bearers

Famous people with the surname Clennon

FAQ

Clennon surname: questions and answers

How common is the last name Clennon?

The surname Clennon holds position #61,899 in the US Census Bureau's surname ranking, with an estimated 377 living bearers. It occurs at a rate of 0.11 per 100,000 Americans.

What is the ethnic background of the Clennon surname?

Among Census respondents with the surname Clennon, the largest self-reported group is White at 71.3%. The next largest groups are Black (26.2%) and Two or More Races (1.5%). These figures come from the 2010 Census Bureau surname tables, based on how respondents described their own race and ethnicity.

Where does this surname data come from?

All surname statistics on Name Census are drawn from the US Census Bureau's decennial surname frequency tables. These tables list every surname that appeared 100 or more times in the 2010 Census, along with a frequency rate and self-reported demographic breakdown. You can read the full explanation on our methodology page.

N
Name Census
namecensus.com

There are 377 people

with the surname

Clennon

Look up any American name

Share this result