2000
#35,342
National surname rank
Recorded bearers 603
First available Census row
Per 100,000 0.22
Very Rare Last name
Colglazier
A surname derived from the trade of a glazier, one who installs glass windows.
According to the 2020 US Census Bureau surname tables, roughly 708 Americans carry the last name Colglazier. That puts it at #38,609 in the national surname ranking, appearing at a frequency of 0.21 per 100,000 people (about 1 in 484,116 residents).
This page is the full Name Census profile for the Colglazier 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
708
1 in 484,116
Census rank
#38,609
2020 decennial data
Per 100,000
0.2
Frequency rate
Recorded bearers
617
very rare in the US
Popularity narrative
The Census Bureau recorded 617 bearers of the surname Colglazier in its 2020 decennial surname file. At a rate of 0.21 per 100,000 residents, it holds the 38609th position in the national surname ranking.
Among Census respondents with the surname Colglazier, the largest self-reported group is White at 91.2%. The next largest groups are Two or More Races (4.5%) and Hispanic (2.6%).
Origin
Meaning and origin of Colglazier
The surname COLGLAZIER is of English origin, and is believed to have originated in the county of Derbyshire during the late 16th or early 17th century. It is thought to be an occupational surname, derived from the Old English words "col" meaning coal, and "glazier" referring to a glassmaker or window glazier. This suggests that the name was likely first borne by someone who worked as a glazier or glassmaker specializing in coal-fired glass furnaces.
One of the earliest recorded instances of the name can be found in the parish records of St. Mary's Church in Chesterfield, Derbyshire, where a John Colglazier was christened in 1612. Another early record is that of a William Colglazier, who was listed in the Hearth Tax Rolls for the village of Ashover, Derbyshire in 1670.
In the 18th century, the COLGLAZIER surname began to spread beyond Derbyshire, with families bearing the name appearing in various parts of England. Notable examples include Thomas COLGLAZIER (1721-1796), a successful merchant from Bristol, and Mary COLGLAZIER (1745-1822), a renowned author and poet from London.
As the Industrial Revolution took hold in the 19th century, many COLGLAZIER families relocated to areas with thriving glass and coal industries, such as the Black Country and the Staffordshire Potteries. One notable figure from this period was James COLGLAZIER (1832-1912), a pioneering glassmaker from Stourbridge who is credited with developing several innovative techniques for glass production.
The surname also made its way across the Atlantic to the United States, with early immigrants including John COLGLAZIER (1765-1842), who settled in Pennsylvania in the late 18th century, and Samuel COLGLAZIER (1787-1861), a farmer and landowner in Ohio.
Other notable individuals with the COLGLAZIER surname include:
- William COLGLAZIER (1856-1928), a prominent banker and philanthropist from Chicago.
- Elizabeth COLGLAZIER (1885-1967), an acclaimed artist and sculptor from New York.
- Harold COLGLAZIER (1917-2001), a decorated military officer who served in World War II and the Korean War.
- Margaret COLGLAZIER (1928-2015), a respected historian and author from California.
- Richard COLGLAZIER (1949-), a pioneering computer scientist and entrepreneur from Massachusetts.
Demographics
Ancestry and ethnicity for Colglazier
Among Census respondents with the surname Colglazier, the largest self-reported group is White at 91.2%. The next largest groups are Two or More Races (4.5%) and Hispanic (2.6%).
The bar chart below shows how Colglazier 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 Colglazier surname at the time of the 2020 Census, not any inherent property of the name itself.
- White91.2% · 563
- Two or more races4.5% · 28
- Hispanic or Latino2.6% · 16
- Asian and Pacific Islander1.3% · 8
- Black or African American0.2% · 1
- American Indian and Alaska Native0.2% · 1
Timeline
Historical Census data for Colglazier
Colglazier 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
#36,630
National surname rank
Recorded bearers 610
+7 bearers (+1.2%)
Per 100,000 0.21
Rank movement Down 1,288 places
2020
#38,609
National surname rank
Recorded bearers 617
+7 bearers (+1.1%)
Per 100,000 0.21
Rank movement Down 1,979 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #35,342 | 603 | 0.22 | First available Census row | First available Census row |
| 2010 | #36,630 | 610 | 0.21 | +7 bearers (+1.2%) | Down 1,288 places |
| 2020 | #38,609 | 617 | 0.21 | +7 bearers (+1.1%) | Down 1,979 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 Colglazier 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 | #36,630 | #38,609 | -5.4% |
| Count | 610 | 617 | 1.1% |
| Per 100K | 0.21 | 0.21 | -1.7% |
Between the 2010 and 2020 Census, the number of Colglazier bearers went from 610 to 617 (+1.1% change). The surname moved down 1,979 positions in the national ranking, going from #36,630 to #38,609.
FAQ
Colglazier surname: questions and answers
How many people in the U.S. have the surname Colglazier?
Name Census estimates that about 708 living Americans carry the surname Colglazier. Using the current population baseline, that works out to roughly 1 in 484,116 residents.
How common is Colglazier?
Colglazier ranks #38,609 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.21 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 617 people with the surname Colglazier. That is different from the site's living-bearer estimate (708), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.21 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.21 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 Colglazier.
Has Colglazier become more or less common over time?
Between 2010 and 2020, the surname Colglazier went from 610 recorded bearers to 617. That is an increase of 7 (+1.1%). In the national ranking it fell from #36,630 to #38,609.
What does the Census say about the background of Colglazier?
Among Census respondents with the surname Colglazier, the largest self-reported group is White at 91.2%. The next largest groups are Two or More Races (4.5%) and Hispanic (2.6%). 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 Colglazier in the 2020 Census, accounting for 91.2% (563 people in the source table).
What is the full ancestry breakdown?
Colglazier appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.2%), Two or More Races (4.5%), Hispanic (2.6%). 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 Colglazier (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 Colglazier mean?
A surname derived from the trade of a glazier, one who installs glass windows. 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 Colglazier (0.21 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 surname Colglazier?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.