2000
#8,051
National surname rank
Recorded bearers 3,799
First available Census row
Per 100,000 1.41
Rare Last name
Glasscock
An English occupational surname for a glassblower or glazier.
According to the 2020 US Census Bureau surname tables, roughly 3,895 Americans carry the last name Glasscock. That puts it at #9,216 in the national surname ranking, appearing at a frequency of 1.14 per 100,000 people (about 1 in 87,999 residents).
This page is the full Name Census profile for the Glasscock 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 Glasscock with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
3.9K
1 in 87,999
Census rank
#9,216
2020 decennial data
Per 100,000
1.1
Frequency rate
Recorded bearers
3.4K
rare in the US
Popularity narrative
The Census Bureau recorded 3,397 bearers of the surname Glasscock in its 2020 decennial surname file. At a rate of 1.14 per 100,000 residents, it holds the 9216th position in the national surname ranking.
Among Census respondents with the surname Glasscock, the largest self-reported group is White at 92.8%. The next largest groups are Hispanic (2.8%) and Two or More Races (2.8%).
Origin
Meaning and origin of Glasscock
The surname Glasscock is of English origin, tracing its roots back to the medieval era. It is believed to have derived from an occupational name, referring to a person who was involved in the production or handling of glass. The name likely originated in areas where glassmaking was a prominent industry, such as the county of Sussex.
One of the earliest recorded mentions of the name can be found in the Feet of Fines for Essex, dated 1277, where a Robert Glascok is referenced. This early spelling variation provides insight into the name's evolution over time.
In the 13th century, the name appeared in various manorial records, suggesting the presence of Glasscock families in different parts of England. For instance, the Subsidy Rolls of Worcestershire from 1275 mentioned a William Glascok.
The Hundred Rolls of 1273, an important source for medieval genealogy, recorded a Robertus Glascok residing in the county of Norfolk. This indicates the name's spread across various regions of England during the Middle Ages.
One notable figure bearing the Glasscock surname was Sir Nicholas Glasscock, a Member of Parliament for Coventry in 1449. His involvement in the political sphere highlights the name's representation among the gentry class of the time.
Another individual of historical significance was Thomas Glasscock, a 16th-century English composer and musician. Born around 1500, he served as a Gentleman of the Chapel Royal during the reign of King Henry VIII.
In the 17th century, the name appeared in various parish records, such as the baptismal record of John Glasscock in St. Mary's Church, Nottingham, in 1633. This suggests the continued presence of the Glasscock family in different parts of England.
The 18th century saw the rise of William Glasscock, a renowned English cricketer who played for the Hambledon Club. Born in 1736, he was considered one of the leading batsmen of his era and contributed significantly to the development of the sport.
Moving into the 19th century, James Glasscock, born in 1810, made a name for himself as a prominent architect. He was responsible for designing several notable buildings, including the Oxford University Museum of Natural History.
These examples illustrate the diverse backgrounds and achievements associated with the Glasscock surname throughout English history, spanning various fields and socioeconomic classes.
Demographics
Ancestry and ethnicity for Glasscock
Among Census respondents with the surname Glasscock, the largest self-reported group is White at 92.8%. The next largest groups are Hispanic (2.8%) and Two or More Races (2.8%).
The bar chart below shows how Glasscock 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 Glasscock surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.8% · 3,153
- Hispanic or Latino2.8% · 96
- Two or more races2.8% · 95
- American Indian and Alaska Native0.6% · 20
- Black or African American0.5% · 17
- Asian and Pacific Islander0.5% · 16
Timeline
Historical Census data for Glasscock
Glasscock 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
#8,723
National surname rank
Recorded bearers 3,761
-38 bearers (-1.0%)
Per 100,000 1.28
Rank movement Down 672 places
2020
#9,216
National surname rank
Recorded bearers 3,397
-364 bearers (-9.7%)
Per 100,000 1.14
Rank movement Down 493 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #8,051 | 3,799 | 1.41 | First available Census row | First available Census row |
| 2010 | #8,723 | 3,761 | 1.28 | -38 bearers (-1.0%) | Down 672 places |
| 2020 | #9,216 | 3,397 | 1.14 | -364 bearers (-9.7%) | Down 493 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 Glasscock 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 | #8,723 | #9,216 | -5.7% |
| Count | 3,761 | 3,397 | -9.7% |
| Per 100K | 1.28 | 1.14 | -11.2% |
Between the 2010 and 2020 Census, the number of Glasscock bearers went from 3,761 to 3,397 (-9.7% change). The surname moved down 493 positions in the national ranking, going from #8,723 to #9,216.
FAQ
Glasscock surname: questions and answers
How many people in the U.S. have the surname Glasscock?
Name Census estimates that about 3,895 living Americans carry the surname Glasscock. Using the current population baseline, that works out to roughly 1 in 87,999 residents.
How common is Glasscock?
Glasscock ranks #9,216 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.14 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 3,397 people with the surname Glasscock. That is different from the site's living-bearer estimate (3,895), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 1.14 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 1.14 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 Glasscock.
Has Glasscock become more or less common over time?
Between 2010 and 2020, the surname Glasscock went from 3,761 recorded bearers to 3,397. That is a decrease of 364 (-9.7%). In the national ranking it fell from #8,723 to #9,216.
What does the Census say about the background of Glasscock?
Among Census respondents with the surname Glasscock, the largest self-reported group is White at 92.8%. The next largest groups are Hispanic (2.8%) and Two or More Races (2.8%). 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 Glasscock in the 2020 Census, accounting for 92.8% (3,153 people in the source table).
What is the full ancestry breakdown?
Glasscock appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.8%), Hispanic (2.8%), Two or More Races (2.8%). 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 Glasscock (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 Glasscock mean?
An English occupational surname for a glassblower or glazier. 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 Glasscock (1.14 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 Glasscock?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.