2000
#131,366
National surname rank
First available Census row
A habitational surname originating from a place named Kemett in England.
According to the 2020 US Census Bureau surname tables, roughly 133 Americans carry the last name Kemmett. That puts it at #145,028 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,577,100 residents).
This page is the full Name Census profile for the Kemmett 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 Kemmett with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
133
1 in 2,577,100
Census rank
#145,028
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
116
very rare in the US
Popularity narrative
The Census Bureau recorded 116 bearers of the surname Kemmett in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 145028th position in the national surname ranking.
Among Census respondents with the surname Kemmett, the largest self-reported group is White at 93.1%. The next largest groups are Two or More Races (3.4%) and Black (0.9%).
Origin
The surname Kemmett has its origins in England, tracing back to the medieval period. It is believed to have derived from the Old English words "cemman" or "cemma," which referred to a warrior or a soldier. This suggests that the name may have been associated with individuals who served in military roles or were renowned for their combat prowess.
One of the earliest recorded instances of the name Kemmett can be found in the Domesday Book, a comprehensive survey of land ownership commissioned by William the Conqueror in 1086. The entry mentions a landowner named Kemmett, indicating the presence of the name in England during the Norman era.
In the 13th century, records show a family bearing the name Kemmett residing in the county of Oxfordshire. This family likely played a role in the local community and may have been involved in agricultural or landholding activities.
During the 16th century, a notable figure named John Kemmett was born in the village of Steyning, Sussex, in 1528. He became a respected scholar and theologian, authoring several works on religious subjects and serving as a rector in the Church of England.
In the 17th century, the name Kemmett was associated with a family that settled in the town of Lewes, East Sussex. One member, William Kemmett (1645-1718), was a prominent merchant and landowner who contributed significantly to the local economy.
Moving into the 18th century, a notable figure named Elizabeth Kemmett (1702-1782) gained recognition as a philanthropist and benefactor in the city of Bristol. She used her wealth to support various charitable causes, leaving a lasting impact on the local community.
Throughout history, the name Kemmett has also been linked to various place names and locations within England. For example, the village of Kemmerton in Gloucestershire is believed to have derived its name from the presence of individuals bearing the surname Kemmett in the area.
It is worth noting that variations in spelling, such as Kemmet, Kemmit, and Kemmitt, have also been documented over the centuries, reflecting the evolution of the name through different regions and time periods.
Demographics
Among Census respondents with the surname Kemmett, the largest self-reported group is White at 93.1%. The next largest groups are Two or More Races (3.4%) and Black (0.9%).
The bar chart below shows how Kemmett 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 Kemmett surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Kemmett 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
+10 bearers (+8.4%)
2020
National surname rank
-13 bearers (-10.1%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #131,366 | 119 | 0.04 | First available Census row | First available Census row |
| 2010 | #131,379 | 129 | 0.04 | +10 bearers (+8.4%) | Down 13 places |
| 2020 | #145,028 | 116 | 0.04 | -13 bearers (-10.1%) | Down 13,649 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 Kemmett 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 | #131,379 | #145,028 | -10.4% |
| Count | 129 | 116 | -10.1% |
| Per 100K | 0.04 | 0.04 | -3.0% |
Between the 2010 and 2020 Census, the number of Kemmett bearers went from 129 to 116 (-10.1% change). The surname moved down 13,649 positions in the national ranking, going from #131,379 to #145,028.
FAQ
Name Census estimates that about 133 living Americans carry the surname Kemmett. Using the current population baseline, that works out to roughly 1 in 2,577,100 residents.
Kemmett ranks #145,028 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 116 people with the surname Kemmett. That is different from the site's living-bearer estimate (133), 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 0.04 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 Kemmett.
Between 2010 and 2020, the surname Kemmett went from 129 recorded bearers to 116. That is a decrease of 13 (-10.1%). In the national ranking it fell from #131,379 to #145,028.
Among Census respondents with the surname Kemmett, the largest self-reported group is White at 93.1%. The next largest groups are Two or More Races (3.4%) and Black (0.9%). 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 Kemmett in the 2020 Census, accounting for 93.1% (108 people in the source table).
Kemmett appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.1%), Two or More Races (3.4%), Black (0.9%). 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 Kemmett (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.
A habitational surname originating from a place named Kemett in England. 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 Kemmett (0.04 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 quick modern take, check how many people have the surname Kemmett on our sister site HowManyOfMe.org.