2000
#141,788
National surname rank
Recorded bearers 108
First available Census row
Per 100,000 0.04
Very Rare Last name
Milarch
Derived from the word "milieu" combined with "arch", possibly referring to someone from a central or prominent community or area.
According to the 2020 US Census Bureau surname tables, roughly 139 Americans carry the last name Milarch. That puts it at #141,309 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,465,859 residents).
This page is the full Name Census profile for the Milarch 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
139
1 in 2,465,859
Census rank
#141,309
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
121
very rare in the US
Popularity narrative
The Census Bureau recorded 121 bearers of the surname Milarch in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 141309th position in the national surname ranking.
Among Census respondents with the surname Milarch, the largest self-reported group is White at 97.5%. The next largest groups are Two or More Races (2.5%).
Origin
Meaning and origin of Milarch
The surname MILARCH is believed to have originated in the region of Normandy, France, during the medieval period, likely in the 11th or 12th century. It is thought to be derived from the Old French words "mille" meaning "thousand" and "arch" meaning "archer" or "bowman." This suggests that the name may have initially referred to someone who was a skilled archer or a member of a military unit specializing in archery.
One of the earliest recorded instances of the name can be found in the Domesday Book, a comprehensive survey of land ownership and taxation commissioned by William the Conqueror in 1086. The name appears as "Milarch," suggesting that this spelling variation existed in the early Norman period.
As the name spread across Europe, it underwent various spelling changes and adaptations. In England, for instance, it was sometimes rendered as "Millarche" or "Millarch," while in other regions, variations like "Milarche" or "Millarchi" were common.
One notable figure bearing this surname was Sir William Milarch, a Norman knight who fought alongside William the Conqueror during the Norman Conquest of England in 1066. He was granted lands in Wiltshire for his service and is mentioned in several contemporary chronicles.
Another historical figure was Jean Milarch, a French archer who served in the armies of King Philip IV of France during the early 14th century. He is believed to have participated in the famous Battle of Courtrai in 1302.
In the 15th century, there are records of a family named Milarch residing in the town of Arques, located in the Normandy region of France. One member, Pierre Milarch (1410-1478), was a respected merchant and landowner in the area.
During the Renaissance period, the name Milarch can be found associated with several notable scholars and artists. One such individual was François Milarch (1520-1592), a French humanist and philosopher who taught at the University of Paris and wrote extensively on the works of Aristotle.
In the 18th century, a prominent figure was Louis-Alexandre Milarch (1745-1819), a French architect who designed several notable buildings in Paris, including the Théâtre de l'Odéon and the Palais de la Légion d'Honneur.
While the surname MILARCH has roots dating back to the medieval period in Normandy, it has since spread across various regions and countries, with individuals bearing this name making contributions in various fields throughout history.
Demographics
Ancestry and ethnicity for Milarch
Among Census respondents with the surname Milarch, the largest self-reported group is White at 97.5%. The next largest groups are Two or More Races (2.5%).
The bar chart below shows how Milarch 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 Milarch surname at the time of the 2020 Census, not any inherent property of the name itself.
- White97.5% · 118
- Two or more races2.5% · 3
Timeline
Historical Census data for Milarch
Milarch 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
#133,863
National surname rank
Recorded bearers 126
+18 bearers (+16.7%)
Per 100,000 0.04
Rank movement Up 7,925 places
2020
#141,309
National surname rank
Recorded bearers 121
-5 bearers (-4.0%)
Per 100,000 0.04
Rank movement Down 7,446 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #141,788 | 108 | 0.04 | First available Census row | First available Census row |
| 2010 | #133,863 | 126 | 0.04 | +18 bearers (+16.7%) | Up 7,925 places |
| 2020 | #141,309 | 121 | 0.04 | -5 bearers (-4.0%) | Down 7,446 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 Milarch 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 | #133,863 | #141,309 | -5.6% |
| Count | 126 | 121 | -4.0% |
| Per 100K | 0.04 | 0.04 | 1.2% |
Between the 2010 and 2020 Census, the number of Milarch bearers went from 126 to 121 (-4.0% change). The surname moved down 7,446 positions in the national ranking, going from #133,863 to #141,309.
FAQ
Milarch surname: questions and answers
How many people in the U.S. have the surname Milarch?
Name Census estimates that about 139 living Americans carry the surname Milarch. Using the current population baseline, that works out to roughly 1 in 2,465,859 residents.
How common is Milarch?
Milarch ranks #141,309 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 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 121 people with the surname Milarch. That is different from the site's living-bearer estimate (139), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 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 Milarch.
Has Milarch become more or less common over time?
Between 2010 and 2020, the surname Milarch went from 126 recorded bearers to 121. That is a decrease of 5 (-4.0%). In the national ranking it fell from #133,863 to #141,309.
What does the Census say about the background of Milarch?
Among Census respondents with the surname Milarch, the largest self-reported group is White at 97.5%. The next largest groups are Two or More Races (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 Milarch in the 2020 Census, accounting for 97.5% (118 people in the source table).
What is the full ancestry breakdown?
Milarch appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (97.5%), Two or More Races (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 Milarch (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 Milarch mean?
Derived from the word "milieu" combined with "arch", possibly referring to someone from a central or prominent community or area. 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 Milarch (0.04 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 Milarch?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.