2000
#12,721
National surname rank
Recorded bearers 2,229
First available Census row
Per 100,000 0.83
Rare Last name
Dimauro
Derived from the Italian personal name Mauro, likely referring to someone with a dark complexion or dark hair.
According to the 2020 US Census Bureau surname tables, roughly 2,304 Americans carry the last name Dimauro. That puts it at #14,325 in the national surname ranking, appearing at a frequency of 0.67 per 100,000 people (about 1 in 148,765 residents).
This page is the full Name Census profile for the Dimauro 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
2.3K
1 in 148,765
Census rank
#14,325
2020 decennial data
Per 100,000
0.7
Frequency rate
Recorded bearers
2.0K
rare in the US
Popularity narrative
The Census Bureau recorded 2,009 bearers of the surname Dimauro in its 2020 decennial surname file. At a rate of 0.67 per 100,000 residents, it holds the 14325th position in the national surname ranking.
Among Census respondents with the surname Dimauro, the largest self-reported group is White at 93.3%. The next largest groups are Hispanic (3.7%) and Two or More Races (1.9%).
Origin
Meaning and origin of Dimauro
The surname DiMauro originates from Italy. It is derived from the Latin word "maurus," which means "dark-skinned" or "Moor." The prefix "di" indicates "from" or "of." Therefore, the name DiMauro likely referred to someone with a dark complexion or someone who had Moorish ancestry.
The earliest recorded instances of the name can be traced back to Sicily and Southern Italy during the Middle Ages. This region was heavily influenced by the Moors, who ruled parts of Sicily and Southern Italy from the 9th to the 11th centuries. The name may have been given to individuals of mixed Italian and Moorish descent during this period.
One of the earliest known bearers of the name was Girolamo DiMauro, a Sicilian philosopher and mathematician who lived in the late 15th century. He is recognized for his contributions to the study of optics and his work on the properties of light refraction.
Another notable individual with the surname DiMauro was Vincenzo DiMauro, a 17th-century Italian painter from Naples. He was known for his religious works and his paintings can be found in various churches and galleries throughout Italy.
In the 18th century, a prominent figure named Antonio DiMauro served as a respected judge and legal scholar in the Kingdom of Naples. He authored several influential texts on jurisprudence and played a significant role in shaping the legal system of his time.
During the 19th century, a prominent family with the surname DiMauro resided in the town of Castelvetrano, Sicily. This family was involved in the local wine industry and owned several vineyards in the region.
Another notable figure with the surname DiMauro was Domenico DiMauro, a 20th-century Italian-American artist and sculptor. He was born in Sicily in 1901 and later emigrated to the United States, where he gained recognition for his works depicting scenes from Italian-American life.
Demographics
Ancestry and ethnicity for Dimauro
Among Census respondents with the surname Dimauro, the largest self-reported group is White at 93.3%. The next largest groups are Hispanic (3.7%) and Two or More Races (1.9%).
The bar chart below shows how Dimauro 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 Dimauro surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.3% · 1,875
- Hispanic or Latino3.7% · 75
- Two or more races1.9% · 39
- Asian and Pacific Islander0.6% · 13
- Black or African American0.3% · 7
Timeline
Historical Census data for Dimauro
Dimauro 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
#13,413
National surname rank
Recorded bearers 2,272
+43 bearers (+1.9%)
Per 100,000 0.77
Rank movement Down 692 places
2020
#14,325
National surname rank
Recorded bearers 2,009
-263 bearers (-11.6%)
Per 100,000 0.67
Rank movement Down 912 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #12,721 | 2,229 | 0.83 | First available Census row | First available Census row |
| 2010 | #13,413 | 2,272 | 0.77 | +43 bearers (+1.9%) | Down 692 places |
| 2020 | #14,325 | 2,009 | 0.67 | -263 bearers (-11.6%) | Down 912 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 Dimauro 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 | #13,413 | #14,325 | -6.8% |
| Count | 2,272 | 2,009 | -11.6% |
| Per 100K | 0.77 | 0.67 | -12.7% |
Between the 2010 and 2020 Census, the number of Dimauro bearers went from 2,272 to 2,009 (-11.6% change). The surname moved down 912 positions in the national ranking, going from #13,413 to #14,325.
FAQ
Dimauro surname: questions and answers
How many people in the U.S. have the surname Dimauro?
Name Census estimates that about 2,304 living Americans carry the surname Dimauro. Using the current population baseline, that works out to roughly 1 in 148,765 residents.
How common is Dimauro?
Dimauro ranks #14,325 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.67 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 2,009 people with the surname Dimauro. That is different from the site's living-bearer estimate (2,304), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.67 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.67 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 Dimauro.
Has Dimauro become more or less common over time?
Between 2010 and 2020, the surname Dimauro went from 2,272 recorded bearers to 2,009. That is a decrease of 263 (-11.6%). In the national ranking it fell from #13,413 to #14,325.
What does the Census say about the background of Dimauro?
Among Census respondents with the surname Dimauro, the largest self-reported group is White at 93.3%. The next largest groups are Hispanic (3.7%) and Two or More Races (1.9%). 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 Dimauro in the 2020 Census, accounting for 93.3% (1,875 people in the source table).
What is the full ancestry breakdown?
Dimauro appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.3%), Hispanic (3.7%), Two or More Races (1.9%). 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 Dimauro (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 Dimauro mean?
Derived from the Italian personal name Mauro, likely referring to someone with a dark complexion or dark hair. 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 Dimauro (0.67 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 common is the surname Dimauro?
Find out how many people have the surname Dimauro on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.