Cardiff
A surname of Welsh origin likely referring to someone from the city of Cardiff.
According to the 2010 US Census Bureau surname tables, roughly 583 Americans carry the last name Cardiff. That puts it at #42,455 in the national surname ranking, appearing at a frequency of 0.17 per 100,000 people (about 1 in 587,915 residents).
This page is the full Name Census profile for the Cardiff 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
583
1 in 587,915
Census rank
#42,455
2010 decennial data
Per 100,000
0.2
Frequency rate
Recorded bearers
511
very rare in the US
Popularity narrative
The Census Bureau recorded 511 bearers of the surname Cardiff in its 2010 decennial surname file. At a rate of 0.17 per 100,000 residents, it holds the 42455th position in the national surname ranking.
Among Census respondents with the surname Cardiff, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (2.0%).
Origin
Meaning and origin of Cardiff
The surname Cardiff originates from Wales, with its earliest known records dating back to the 12th century. It is derived from the Welsh place name "Caerdydd," which means "fort on the river." The name is closely associated with the city of Cardiff, the capital of Wales, which was originally a Roman settlement called "Caer-Didi."
Cardiff is believed to have been first used as a surname by individuals who hailed from the city or surrounding areas. One of the earliest recorded instances of the surname can be found in the Pipe Rolls of Gloucestershire from 1195, which mentions a "Roger de Kardif."
In the Middle Ages, the surname was occasionally spelled as "Cardyff," "Kardif," or "Kardyff," reflecting the variations in pronunciation and spelling that were common during that era. The name is also found in other medieval records, such as the Feet of Fines for Warwickshire in 1347, which references a "William Cardyff."
Notable individuals with the surname Cardiff include Sir Robert Cardiff (c. 1475-1545), a Welsh politician and landowner who served as Sheriff of Glamorganshire in the early 16th century. Another prominent figure was Sir Thomas Cardiff (1560-1626), a Welsh lawyer and judge who served as Chief Justice of the Carmarthen Circuit.
In the 18th century, John Cardiff (1724-1798) was a Welsh clergyman and author who wrote several works on Welsh history and literature. His contemporary, William Cardiff (1738-1818), was a Welsh Anglican priest and poet, known for his odes and elegies in the Welsh language.
One of the most celebrated individuals with the surname was the Welsh actress and singer Dorothy Cardiff (1888-1964), who gained fame on the stage and in early Hollywood films during the early 20th century.
While the surname Cardiff is relatively uncommon outside of Wales, it remains an important part of Welsh cultural heritage, reflecting the long history and significance of the city from which it derives its name.
Demographics
Ancestry and ethnicity for Cardiff
Among Census respondents with the surname Cardiff, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (2.0%).
The bar chart below shows how Cardiff 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 Cardiff surname at the time of the 2010 Census, not any inherent property of the name itself.
- White93.2%
- Hispanic or Latino2.9%
- Two or more races2.0%
- American Indian and Alaska Native1.0%
Year on year
2010 vs 2010 Census
How has the Cardiff 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 | 2010 | Change |
|---|---|---|---|
| Rank | #42,455 | #42,455 | 0.0% |
| Count | 511 | 511 | 0.0% |
| Per 100K | 0.17 | 0.17 | 0.0% |
Between the 2010 and 2010 Census, the number of Cardiff bearers went from 511 to 511 (+0.0% change). The surname held its position in the national ranking, going from #42,455 to #42,455.
Notable bearers
Famous people with the surname Cardiff
FAQ
Cardiff surname: questions and answers
How common is the last name Cardiff?
The surname Cardiff holds position #42,455 in the US Census Bureau's surname ranking, with an estimated 583 living bearers. It occurs at a rate of 0.17 per 100,000 Americans.
What is the ethnic background of the Cardiff surname?
Among Census respondents with the surname Cardiff, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (2.9%) and Two or More Races (2.0%). 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.