2000
#130,443
National surname rank
Recorded bearers 120
First available Census row
Per 100,000 0.04
Very Rare Last name
Ardagna
An Italian surname of Lombardic origin, derived from a placename.
According to the 2020 US Census Bureau surname tables, roughly 130 Americans carry the last name Ardagna. That puts it at #147,221 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,636,572 residents).
This page is the full Name Census profile for the Ardagna 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
130
1 in 2,636,572
Census rank
#147,221
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
113
very rare in the US
Popularity narrative
The Census Bureau recorded 113 bearers of the surname Ardagna in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147221st position in the national surname ranking.
Among Census respondents with the surname Ardagna, the largest self-reported group is White at 94.7%. The next largest groups are Two or More Races (3.5%) and Hispanic (0.9%).
Origin
Meaning and origin of Ardagna
The surname Ardagna is of Italian origin, with its roots traced back to the regions of Tuscany and Emilia-Romagna in the northern part of the country. Historians believe the name emerged during the Middle Ages, possibly derived from the Italian word "ardagna," which means "difficulty" or "hardship."
One of the earliest recorded mentions of the Ardagna name can be found in the historical records of the city of Lucca, where a family by this surname lived in the 13th century. A document from 1274 mentions a certain Guglielmo Ardagna, who was a landowner and prominent figure in the local community.
The name Ardagna also appears in several ancient manuscripts and records from the nearby city of Bologna, suggesting that the family had a presence in this region as well. In the 15th century, a notable figure named Giovanni Ardagna (1425-1492) served as a respected scholar and professor of law at the University of Bologna.
During the Renaissance period, the Ardagna family gained recognition in the arts, with a famous painter named Alessandro Ardagna (1459-1538) hailing from Florence. His works, which often depicted religious themes, can still be admired in various churches and museums across Italy.
As the surname spread throughout the Italian peninsula, it encountered different spellings and variations, such as Ardagni, Ardagno, and Ardagna. In the 18th century, a prominent figure named Girolamo Ardagna (1720-1795) became known for his contributions to the field of mathematics, serving as a professor at the University of Pavia.
Another notable individual with this surname was the Italian politician and statesman, Carlo Ardagna (1806-1879), who played a significant role in the unification of Italy during the Risorgimento movement. He served as a member of the Italian Parliament and was known for his passionate advocacy for democratic reforms.
Throughout the centuries, the Ardagna surname has been carried by individuals from various walks of life, including artists, scholars, politicians, and entrepreneurs, leaving an indelible mark on the cultural and historical landscape of Italy.
Demographics
Ancestry and ethnicity for Ardagna
Among Census respondents with the surname Ardagna, the largest self-reported group is White at 94.7%. The next largest groups are Two or More Races (3.5%) and Hispanic (0.9%).
The bar chart below shows how Ardagna 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 Ardagna surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.7% · 107
- Two or more races3.5% · 4
- Hispanic or Latino0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Ardagna
Ardagna 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
#148,347
National surname rank
Recorded bearers 111
-9 bearers (-7.5%)
Per 100,000 0.04
Rank movement Down 17,904 places
2020
#147,221
National surname rank
Recorded bearers 113
+2 bearers (+1.8%)
Per 100,000 0.04
Rank movement Up 1,126 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #130,443 | 120 | 0.04 | First available Census row | First available Census row |
| 2010 | #148,347 | 111 | 0.04 | -9 bearers (-7.5%) | Down 17,904 places |
| 2020 | #147,221 | 113 | 0.04 | +2 bearers (+1.8%) | Up 1,126 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 Ardagna 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 | #148,347 | #147,221 | 0.8% |
| Count | 111 | 113 | 1.8% |
| Per 100K | 0.04 | 0.04 | -5.5% |
Between the 2010 and 2020 Census, the number of Ardagna bearers went from 111 to 113 (+1.8% change). The surname moved up 1,126 positions in the national ranking, going from #148,347 to #147,221.
FAQ
Ardagna surname: questions and answers
How many people in the U.S. have the surname Ardagna?
Name Census estimates that about 130 living Americans carry the surname Ardagna. Using the current population baseline, that works out to roughly 1 in 2,636,572 residents.
How common is Ardagna?
Ardagna ranks #147,221 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 113 people with the surname Ardagna. That is different from the site's living-bearer estimate (130), 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 Ardagna.
Has Ardagna become more or less common over time?
Between 2010 and 2020, the surname Ardagna went from 111 recorded bearers to 113. That is an increase of 2 (+1.8%). In the national ranking it rose from #148,347 to #147,221.
What does the Census say about the background of Ardagna?
Among Census respondents with the surname Ardagna, the largest self-reported group is White at 94.7%. The next largest groups are Two or More Races (3.5%) and Hispanic (0.9%). 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 Ardagna in the 2020 Census, accounting for 94.7% (107 people in the source table).
What is the full ancestry breakdown?
Ardagna appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.7%), Two or More Races (3.5%), Hispanic (0.9%). 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 Ardagna (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 Ardagna mean?
An Italian surname of Lombardic origin, derived from a placename. 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 Ardagna (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 Ardagna?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.