2000
#3,268
National surname rank
Recorded bearers 10,047
First available Census row
Per 100,000 3.72
Uncommon Last name
Mcclanahan
An Irish surname derived from the Gaelic "Mac Lennacháin," meaning "son of Lennahán," likely referring to a devotee of Saint Lennahán.
According to the 2020 US Census Bureau surname tables, roughly 10,707 Americans carry the last name Mcclanahan. That puts it at #3,697 in the national surname ranking, appearing at a frequency of 3.12 per 100,000 people (about 1 in 32,012 residents).
This page is the full Name Census profile for the Mcclanahan 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.
Bearers in the US
11K
1 in 32,012
Census rank
#3,697
2020 decennial data
Per 100,000
3.1
Frequency rate
Recorded bearers
9.3K
uncommon in the US
Popularity narrative
The Census Bureau recorded 9,337 bearers of the surname Mcclanahan in its 2020 decennial surname file. At a rate of 3.12 per 100,000 residents, it holds the 3697th position in the national surname ranking.
Among Census respondents with the surname Mcclanahan, the largest self-reported group is White at 85.8%. The next largest groups are Black (6.2%) and Two or More Races (3.7%).
Origin
Meaning and origin of Mcclanahan
The surname McClanahan is of Scottish origin, with its roots traced back to the 13th century. It is derived from the Gaelic words "Mac Gille Fhinnein," which translates to "son of the servant of St. Finnan." St. Finnan was a Scottish missionary and saint who lived in the 6th century and played a significant role in spreading Christianity throughout the region.
The McClanahan name is believed to have originated in the Argyll region of Scotland, where the clan was prominent in the area around the Isle of Mull and the surrounding islands. Historical records indicate that the McClanahans were a branch of the larger Clan MacLean, which was one of the most powerful and influential clans in the Scottish Highlands.
One of the earliest recorded instances of the McClanahan name can be found in the Exchequer Rolls of Scotland from the late 13th century, where a certain "Gillebride McClanahan" is mentioned as a landholder in the region of Argyll. This suggests that the family had established itself as a notable presence in the area by that time.
Over the centuries, the McClanahan name has undergone various spelling variations, including McClenachan, McClenaghan, and McClenahan, reflecting the phonetic differences in the way the name was recorded and pronounced in different regions.
Several notable individuals have borne the McClanahan surname throughout history:
1. Sir Hector McClanahan (c. 1550-1625), a Scottish nobleman and military leader who played a prominent role in the Wars of the Three Kingdoms.
2. Reverend Robert McClanahan (1685-1754), a Presbyterian minister who emigrated from Scotland to Virginia and became a influential figure in the early colonial religious landscape.
3. James McClanahan (1770-1848), an American politician who served as a U.S. Representative from Tennessee in the early 19th century.
4. John McClanahan (1805-1879), a Scottish-born American businessman and philanthropist who made significant contributions to the development of Pittsburgh, Pennsylvania.
5. Wilbur McClanahan (1873-1946), an American artist known for his landscape paintings depicting scenes from the American West.
These examples illustrate the widespread reach of the McClanahan name, which has been carried by individuals from diverse walks of life throughout the centuries, leaving an indelible mark on the history and culture of various regions.
Demographics
Ancestry and ethnicity for Mcclanahan
Among Census respondents with the surname Mcclanahan, the largest self-reported group is White at 85.8%. The next largest groups are Black (6.2%) and Two or More Races (3.7%).
The bar chart below shows how Mcclanahan 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 Mcclanahan surname at the time of the 2020 Census, not any inherent property of the name itself.
- White85.8% · 8,011
- Black or African American6.2% · 580
- Two or more races3.7% · 345
- Hispanic or Latino3.4% · 319
- Asian and Pacific Islander0.5% · 44
- American Indian and Alaska Native0.4% · 38
Timeline
Historical Census data for Mcclanahan
Mcclanahan 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
#3,429
National surname rank
Recorded bearers 10,407
+360 bearers (+3.6%)
Per 100,000 3.53
Rank movement Down 161 places
2020
#3,697
National surname rank
Recorded bearers 9,337
-1,070 bearers (-10.3%)
Per 100,000 3.12
Rank movement Down 268 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #3,268 | 10,047 | 3.72 | First available Census row | First available Census row |
| 2010 | #3,429 | 10,407 | 3.53 | +360 bearers (+3.6%) | Down 161 places |
| 2020 | #3,697 | 9,337 | 3.12 | -1,070 bearers (-10.3%) | Down 268 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 Mcclanahan 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 | #3,429 | #3,697 | -7.8% |
| Count | 10,407 | 9,337 | -10.3% |
| Per 100K | 3.53 | 3.12 | -11.5% |
Between the 2010 and 2020 Census, the number of Mcclanahan bearers went from 10,407 to 9,337 (-10.3% change). The surname moved down 268 positions in the national ranking, going from #3,429 to #3,697.
Notable bearers
Famous people with the surname Mcclanahan
FAQ
Mcclanahan surname: questions and answers
How many people in the U.S. have the surname Mcclanahan?
Name Census estimates that about 10,707 living Americans carry the surname Mcclanahan. Using the current population baseline, that works out to roughly 1 in 32,012 residents.
How common is Mcclanahan?
Mcclanahan ranks #3,697 in the 2020 Census surname tables and is classified on this site as "Uncommon." The Census recorded the name at a frequency of 3.12 per 100,000 residents, which is about 3 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 9,337 people with the surname Mcclanahan. That is different from the site's living-bearer estimate (10,707), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 3.12 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 3.12 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 3 of them to have the surname Mcclanahan.
Has Mcclanahan become more or less common over time?
Between 2010 and 2020, the surname Mcclanahan went from 10,407 recorded bearers to 9,337. That is a decrease of 1,070 (-10.3%). In the national ranking it fell from #3,429 to #3,697.
What does the Census say about the background of Mcclanahan?
Among Census respondents with the surname Mcclanahan, the largest self-reported group is White at 85.8%. The next largest groups are Black (6.2%) and Two or More Races (3.7%). 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 Mcclanahan in the 2020 Census, accounting for 85.8% (8,011 people in the source table).
What is the full ancestry breakdown?
Mcclanahan appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (85.8%), Black (6.2%), Two or More Races (3.7%). 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 Mcclanahan (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 Mcclanahan mean?
An Irish surname derived from the Gaelic "Mac Lennacháin," meaning "son of Lennahán," likely referring to a devotee of Saint Lennahán. 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 Mcclanahan (3.12 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 share the surname Mcclanahan?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.