2000
#8,005
National surname rank
Recorded bearers 3,824
First available Census row
Per 100,000 1.42
Rare Last name
Core
An English surname of uncertain origin, possibly referring to someone who lived near an apple core or seed.
According to the 2020 US Census Bureau surname tables, roughly 4,028 Americans carry the last name Core. That puts it at #8,936 in the national surname ranking, appearing at a frequency of 1.18 per 100,000 people (about 1 in 85,093 residents).
This page is the full Name Census profile for the Core 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 Core with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
4.0K
1 in 85,093
Census rank
#8,936
2020 decennial data
Per 100,000
1.2
Frequency rate
Recorded bearers
3.5K
rare in the US
Popularity narrative
The Census Bureau recorded 3,513 bearers of the surname Core in its 2020 decennial surname file. At a rate of 1.18 per 100,000 residents, it holds the 8936th position in the national surname ranking.
Among Census respondents with the surname Core, the largest self-reported group is White at 65.3%. The next largest groups are Black (23.1%) and Hispanic (6.3%).
Origin
Meaning and origin of Core
The surname CORE is of English origin and dates back to the late 12th century. It is derived from the Old English word "cor", meaning "hill" or "mound". The name was initially given as a descriptive surname to individuals who lived near a prominent hill or mound.
CORE is believed to have originated in the county of Derbyshire, England, where several early references to the name can be found in medieval records. One of the earliest recorded instances of the name appears in the Pipe Rolls of Derbyshire from 1195, which mentions a person named "William de la Core".
In the 13th century, the surname CORE started to appear in other regions of England, particularly in the neighboring counties of Staffordshire and Cheshire. This suggests that individuals bearing the name likely migrated or relocated from the original area of Derbyshire.
The Hundred Rolls of 1273, a census-like record of landowners in England, includes entries for individuals with the surname CORE, such as "Robert de la Core" and "Hugh de la Core". These early spellings often incorporated the French preposition "de la" before the surname, indicating the place of origin.
During the late medieval period, the surname CORE was occasionally spelled with variations, such as "Corre" or "Corr". These alternative spellings can be found in various historical documents from the 14th and 15th centuries.
Notable individuals with the surname CORE throughout history include:
1. Sir John Core (c. 1490 - 1556), an English politician and Member of Parliament for Derbyshire in the 16th century.
2. Thomas Core (1570 - 1635), an English clergyman and author who served as the Rector of Stoke Prior in Worcestershire.
3. Tobias Core (1628 - 1697), an English academic and mathematician who was a fellow of Christ's College, Cambridge.
4. Elizabeth Core (1673 - 1748), an English landowner and heiress who inherited substantial estates in Derbyshire and Staffordshire.
5. William Core (1795 - 1867), an English architect and surveyor who designed several notable buildings in London and the surrounding areas.
While the surname CORE has been present in historical records for centuries, it is not as prevalent as some other English surnames. However, it continues to be associated with its origins in the county of Derbyshire and the descriptive meaning of "hill" or "mound".
Demographics
Ancestry and ethnicity for Core
Among Census respondents with the surname Core, the largest self-reported group is White at 65.3%. The next largest groups are Black (23.1%) and Hispanic (6.3%).
The bar chart below shows how Core 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 Core surname at the time of the 2020 Census, not any inherent property of the name itself.
- White65.3% · 2,293
- Black or African American23.1% · 813
- Hispanic or Latino6.3% · 223
- Two or more races3.8% · 134
- Asian and Pacific Islander0.8% · 27
- American Indian and Alaska Native0.7% · 23
Timeline
Historical Census data for Core
Core 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
#8,631
National surname rank
Recorded bearers 3,810
-14 bearers (-0.4%)
Per 100,000 1.29
Rank movement Down 626 places
2020
#8,936
National surname rank
Recorded bearers 3,513
-297 bearers (-7.8%)
Per 100,000 1.18
Rank movement Down 305 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #8,005 | 3,824 | 1.42 | First available Census row | First available Census row |
| 2010 | #8,631 | 3,810 | 1.29 | -14 bearers (-0.4%) | Down 626 places |
| 2020 | #8,936 | 3,513 | 1.18 | -297 bearers (-7.8%) | Down 305 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 Core 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 | #8,631 | #8,936 | -3.5% |
| Count | 3,810 | 3,513 | -7.8% |
| Per 100K | 1.29 | 1.18 | -8.9% |
Between the 2010 and 2020 Census, the number of Core bearers went from 3,810 to 3,513 (-7.8% change). The surname moved down 305 positions in the national ranking, going from #8,631 to #8,936.
FAQ
Core surname: questions and answers
How many people in the U.S. have the surname Core?
Name Census estimates that about 4,028 living Americans carry the surname Core. Using the current population baseline, that works out to roughly 1 in 85,093 residents.
How common is Core?
Core ranks #8,936 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.18 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 3,513 people with the surname Core. That is different from the site's living-bearer estimate (4,028), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 1.18 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 1.18 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Core.
Has Core become more or less common over time?
Between 2010 and 2020, the surname Core went from 3,810 recorded bearers to 3,513. That is a decrease of 297 (-7.8%). In the national ranking it fell from #8,631 to #8,936.
What does the Census say about the background of Core?
Among Census respondents with the surname Core, the largest self-reported group is White at 65.3%. The next largest groups are Black (23.1%) and Hispanic (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?
White is the largest self-reported group for the surname Core in the 2020 Census, accounting for 65.3% (2,293 people in the source table).
What is the full ancestry breakdown?
Core appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (65.3%), Black (23.1%), Hispanic (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 Core (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 Core mean?
An English surname of uncertain origin, possibly referring to someone who lived near an apple core or seed. 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 Core (1.18 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 have the last name Core?
Find out how many people have the surname Core on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.