2000
#133,114
National surname rank
First available Census row
An English surname derived from a place name, likely indicating origins from a location once called "Liddon".
According to the 2020 US Census Bureau surname tables, roughly 116 Americans carry the last name Liddon. That puts it at #155,270 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,954,779 residents).
This page is the full Name Census profile for the Liddon 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 Liddon with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
116
1 in 2,954,779
Census rank
#155,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
101
very rare in the US
Popularity narrative
The Census Bureau recorded 101 bearers of the surname Liddon in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155270th position in the national surname ranking.
Among Census respondents with the surname Liddon, the largest self-reported group is White at 91.1%. The next largest groups are Two or More Races (5.9%) and Black (2.0%).
Origin
The surname Liddon is of English origin, derived from the Old English words "hlidd" meaning a hill or gate, and "dun" meaning a hill or down. The name is topographical, referring to someone who lived near a gate or hill.
The earliest recorded instance of the Liddon surname dates back to the Domesday Book of 1086, where it was spelled as "Lidun." This suggests that the name was already in use in England before the Norman Conquest.
During the 13th century, the name appeared in various records, such as the Hundred Rolls of 1273, where it was spelled "Liddone." This spelling variation highlights the evolution of the surname over time.
In the 14th century, the Liddon surname can be found in the Subsidy Rolls of Staffordshire, where it was recorded as "Lyddon." This indicates the presence of the family in the county of Staffordshire during that period.
One of the earliest notable individuals with the Liddon surname was John Liddon, who was born in England around 1490. He served as a member of the Privy Council under King Henry VIII.
Another prominent individual was Sir Ralph Liddon (1516-1587), an English merchant and diplomat during the reign of Queen Elizabeth I. He played a significant role in establishing trade relations with Russia.
In the 17th century, William Liddon (1630-1689) was a notable English clergyman and author. He served as the Vicar of St. Giles, Cripplegate, in London and wrote several theological works.
During the 18th century, Humphrey Liddon (1749-1823) was a renowned English architect responsible for designing several churches and public buildings in Bath and Bristol.
In the 19th century, Henry Parry Liddon (1829-1890) was a prominent English theologian and preacher. He served as the Canon of St. Paul's Cathedral and was a leading figure in the Oxford Movement within the Church of England.
The Liddon surname has been associated with various place names in England, such as Liddon Hill in Cheshire and Liddon Farm in Buckinghamshire. These place names further reinforce the topographical origins of the surname.
Demographics
Among Census respondents with the surname Liddon, the largest self-reported group is White at 91.1%. The next largest groups are Two or More Races (5.9%) and Black (2.0%).
The bar chart below shows how Liddon 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 Liddon surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Liddon 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
-7 bearers (-6.0%)
2020
National surname rank
-9 bearers (-8.2%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #133,114 | 117 | 0.04 | First available Census row | First available Census row |
| 2010 | #149,395 | 110 | 0.04 | -7 bearers (-6.0%) | Down 16,281 places |
| 2020 | #155,270 | 101 | 0.03 | -9 bearers (-8.2%) | Down 5,875 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 Liddon 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 | #149,395 | #155,270 | -3.9% |
| Count | 110 | 101 | -8.2% |
| Per 100K | 0.04 | 0.03 | -15.5% |
Between the 2010 and 2020 Census, the number of Liddon bearers went from 110 to 101 (-8.2% change). The surname moved down 5,875 positions in the national ranking, going from #149,395 to #155,270.
FAQ
Name Census estimates that about 116 living Americans carry the surname Liddon. Using the current population baseline, that works out to roughly 1 in 2,954,779 residents.
Liddon ranks #155,270 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 101 people with the surname Liddon. That is different from the site's living-bearer estimate (116), 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 0.03 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 0 of them to have the surname Liddon.
Between 2010 and 2020, the surname Liddon went from 110 recorded bearers to 101. That is a decrease of 9 (-8.2%). In the national ranking it fell from #149,395 to #155,270.
Among Census respondents with the surname Liddon, the largest self-reported group is White at 91.1%. The next largest groups are Two or More Races (5.9%) and Black (2.0%). 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 Liddon in the 2020 Census, accounting for 91.1% (92 people in the source table).
Liddon appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.1%), Two or More Races (5.9%), Black (2.0%). 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 Liddon (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 English surname derived from a place name, likely indicating origins from a location once called "Liddon". 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 Liddon (0.03 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.