2000
#19,263
National surname rank
Recorded bearers 1,302
First available Census row
Per 100,000 0.48
Rare Last name
Hadnot
A variant spelling of the English surname "Had not", likely referring to an ancestor who had not something.
According to the 2020 US Census Bureau surname tables, roughly 1,629 Americans carry the last name Hadnot. That puts it at #19,117 in the national surname ranking, appearing at a frequency of 0.48 per 100,000 people (about 1 in 210,408 residents).
This page is the full Name Census profile for the Hadnot 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
1.6K
1 in 210,408
Census rank
#19,117
2020 decennial data
Per 100,000
0.5
Frequency rate
Recorded bearers
1.4K
rare in the US
Popularity narrative
The Census Bureau recorded 1,421 bearers of the surname Hadnot in its 2020 decennial surname file. At a rate of 0.48 per 100,000 residents, it holds the 19117th position in the national surname ranking.
Among Census respondents with the surname Hadnot, the largest self-reported group is Black at 81.1%. The next largest groups are White (9.0%) and Two or More Races (6.3%).
Origin
Meaning and origin of Hadnot
The surname HADNOT is an English locational name that originated in the medieval period. It derives from a place name meaning "had not" or "had naught," suggesting that the family may have come from an area of little wealth or resources.
Records indicate that the HADNOT name first appeared in the county of Somerset, England in the late 13th century. Some of the earliest references to this name can be found in the Subsidy Rolls of Somerset from 1327, where it is spelled variants like "Haddenought" and "Haddenought."
By the 15th century, the spelling had evolved closer to its modern form, with records from the Pipe Rolls of Devon in 1425 showing "Hadnott" and "Hadnotte." The HADNOT family likely migrated from Somerset to neighboring counties like Devon during this time.
One of the earliest known bearers of the HADNOT surname was Richard Hadnot, born around 1480 in Cheddar, Somerset. He was a wealthy landowner and is recorded in the Somerset Feet of Fines in 1510.
The HADNOT name also surfaced in Yorkshire in the 1600s. Henry Hadnot, born in 1615 in Guisborough, Yorkshire, was a prosperous merchant and alderman recorded in local parish registers.
In 1692, John Hadnot was listed as a Freeman of the City of York, indicating his rights as a tradesman or burgess. His son William Hadnot, born in 1698, became a respected solicitor in York.
By the 18th century, HADNOTs could be found across various English counties. Notable figures include Thomas Hadnot (1725-1795), a renowned horticulturist from Warwickshire who introduced several new plant species to England from the Americas.
The name also appeared in Norfolk, where Peter Hadnot (1760-1842) was a prominent banker and philanthropist who helped establish several schools and charities in Norwich.
Demographics
Ancestry and ethnicity for Hadnot
Among Census respondents with the surname Hadnot, the largest self-reported group is Black at 81.1%. The next largest groups are White (9.0%) and Two or More Races (6.3%).
The bar chart below shows how Hadnot 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 Hadnot surname at the time of the 2020 Census, not any inherent property of the name itself.
- Black or African American81.1% · 1,152
- White9.0% · 128
- Two or more races6.3% · 89
- Hispanic or Latino3.1% · 44
- Asian and Pacific Islander0.4% · 5
- American Indian and Alaska Native0.2% · 3
Timeline
Historical Census data for Hadnot
Hadnot 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
#18,918
National surname rank
Recorded bearers 1,443
+141 bearers (+10.8%)
Per 100,000 0.49
Rank movement Up 345 places
2020
#19,117
National surname rank
Recorded bearers 1,421
-22 bearers (-1.5%)
Per 100,000 0.48
Rank movement Down 199 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #19,263 | 1,302 | 0.48 | First available Census row | First available Census row |
| 2010 | #18,918 | 1,443 | 0.49 | +141 bearers (+10.8%) | Up 345 places |
| 2020 | #19,117 | 1,421 | 0.48 | -22 bearers (-1.5%) | Down 199 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 Hadnot 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 | #18,918 | #19,117 | -1.1% |
| Count | 1,443 | 1,421 | -1.5% |
| Per 100K | 0.49 | 0.48 | -3.0% |
Between the 2010 and 2020 Census, the number of Hadnot bearers went from 1,443 to 1,421 (-1.5% change). The surname moved down 199 positions in the national ranking, going from #18,918 to #19,117.
FAQ
Hadnot surname: questions and answers
How many people in the U.S. have the surname Hadnot?
Name Census estimates that about 1,629 living Americans carry the surname Hadnot. Using the current population baseline, that works out to roughly 1 in 210,408 residents.
How common is Hadnot?
Hadnot ranks #19,117 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.48 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 1,421 people with the surname Hadnot. That is different from the site's living-bearer estimate (1,629), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.48 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.48 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 Hadnot.
Has Hadnot become more or less common over time?
Between 2010 and 2020, the surname Hadnot went from 1,443 recorded bearers to 1,421. That is a decrease of 22 (-1.5%). In the national ranking it fell from #18,918 to #19,117.
What does the Census say about the background of Hadnot?
Among Census respondents with the surname Hadnot, the largest self-reported group is Black at 81.1%. The next largest groups are White (9.0%) and Two or More Races (6.3%). 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?
Black is the largest self-reported group for the surname Hadnot in the 2020 Census, accounting for 81.1% (1,152 people in the source table).
What is the full ancestry breakdown?
Hadnot appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Black (81.1%), White (9.0%), Two or More Races (6.3%). 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 Hadnot (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 Hadnot mean?
A variant spelling of the English surname "Had not", likely referring to an ancestor who had not something. 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 Hadnot (0.48 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 Hadnot?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.