2000
#13,393
National surname rank
Recorded bearers 2,086
First available Census row
Per 100,000 0.77
Rare Last name
Milliron
A surname derived from an occupational name for an iron worker or an iron mill worker.
According to the 2020 US Census Bureau surname tables, roughly 2,367 Americans carry the last name Milliron. That puts it at #13,992 in the national surname ranking, appearing at a frequency of 0.69 per 100,000 people (about 1 in 144,805 residents).
This page is the full Name Census profile for the Milliron 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
2.4K
1 in 144,805
Census rank
#13,992
2020 decennial data
Per 100,000
0.7
Frequency rate
Recorded bearers
2.1K
rare in the US
Popularity narrative
The Census Bureau recorded 2,064 bearers of the surname Milliron in its 2020 decennial surname file. At a rate of 0.69 per 100,000 residents, it holds the 13992nd position in the national surname ranking.
Among Census respondents with the surname Milliron, the largest self-reported group is White at 92.0%. The next largest groups are Two or More Races (3.8%) and Hispanic (2.5%).
Origin
Meaning and origin of Milliron
The surname Milliron has its origins in France and can be traced back to the late 16th century. It is believed to have derived from the French word "mille," meaning "thousand," and the suffix "-ron," which was a common suffix used to denote occupation or location. The name likely referred to someone who worked as a miller or lived near a mill.
One of the earliest recorded instances of the surname Milliron can be found in the parish records of Sainte-Foy, a commune in the Gironde department of southwestern France, where a family by the name of Milliron is mentioned in the late 1500s. The name also appeared in various other regions of France during this period, with variations in spelling such as Milleront, Milliront, and Millieront.
As the name spread across Europe, it was often anglicized to Milliron or similar variations, particularly in regions where French influence was strong, such as parts of England and Scotland. One notable example is Jean Milliron, a French Huguenot who fled religious persecution in the late 17th century and settled in England, where his descendants adopted the spelling Milliron.
In the early 18th century, the name Milliron began appearing in colonial records of North America, as French and other European settlers made their way across the Atlantic. One of the earliest recorded instances was Jacques Milliron, a French immigrant who settled in Pennsylvania in the 1720s.
Notable individuals with the surname Milliron throughout history include:
1. Edouard Milliron (1832-1901), a French artist known for his landscape paintings.
2. William Milliron (1854-1932), an American businessman and philanthropist who founded the Milliron Textile Company in Ohio.
3. Marie Milliron (1890-1976), a French author and journalist who wrote extensively about the experiences of women during World War I.
4. Robert Milliron (1918-2002), an American soldier who received the Medal of Honor for his actions during World War II.
5. Jacqueline Milliron (born 1941), a French-Canadian actress and television personality known for her work in Quebec.
While the surname Milliron has its roots in France, it has since spread to various parts of the world, including North America, where it has been embraced by individuals of diverse backgrounds and nationalities.
Demographics
Ancestry and ethnicity for Milliron
Among Census respondents with the surname Milliron, the largest self-reported group is White at 92.0%. The next largest groups are Two or More Races (3.8%) and Hispanic (2.5%).
The bar chart below shows how Milliron 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 Milliron surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.0% · 1,899
- Two or more races3.8% · 79
- Hispanic or Latino2.5% · 51
- Black or African American0.6% · 13
- Asian and Pacific Islander0.6% · 12
- American Indian and Alaska Native0.5% · 10
Timeline
Historical Census data for Milliron
Milliron 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
#13,959
National surname rank
Recorded bearers 2,161
+75 bearers (+3.6%)
Per 100,000 0.73
Rank movement Down 566 places
2020
#13,992
National surname rank
Recorded bearers 2,064
-97 bearers (-4.5%)
Per 100,000 0.69
Rank movement Down 33 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #13,393 | 2,086 | 0.77 | First available Census row | First available Census row |
| 2010 | #13,959 | 2,161 | 0.73 | +75 bearers (+3.6%) | Down 566 places |
| 2020 | #13,992 | 2,064 | 0.69 | -97 bearers (-4.5%) | Down 33 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 Milliron 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 | #13,959 | #13,992 | -0.2% |
| Count | 2,161 | 2,064 | -4.5% |
| Per 100K | 0.73 | 0.69 | -5.4% |
Between the 2010 and 2020 Census, the number of Milliron bearers went from 2,161 to 2,064 (-4.5% change). The surname moved down 33 positions in the national ranking, going from #13,959 to #13,992.
FAQ
Milliron surname: questions and answers
How many people in the U.S. have the surname Milliron?
Name Census estimates that about 2,367 living Americans carry the surname Milliron. Using the current population baseline, that works out to roughly 1 in 144,805 residents.
How common is Milliron?
Milliron ranks #13,992 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.69 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 2,064 people with the surname Milliron. That is different from the site's living-bearer estimate (2,367), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.69 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.69 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 Milliron.
Has Milliron become more or less common over time?
Between 2010 and 2020, the surname Milliron went from 2,161 recorded bearers to 2,064. That is a decrease of 97 (-4.5%). In the national ranking it fell from #13,959 to #13,992.
What does the Census say about the background of Milliron?
Among Census respondents with the surname Milliron, the largest self-reported group is White at 92.0%. The next largest groups are Two or More Races (3.8%) and Hispanic (2.5%). 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 Milliron in the 2020 Census, accounting for 92.0% (1,899 people in the source table).
What is the full ancestry breakdown?
Milliron appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.0%), Two or More Races (3.8%), Hispanic (2.5%). 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 Milliron (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 Milliron mean?
A surname derived from an occupational name for an iron worker or an iron mill worker. 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 Milliron (0.69 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 Americans have the surname Milliron?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.