2010
#137,327
National surname rank
First available Census row
A habitational surname derived from a place name in Italy, possibly originating from the Italian region Valtellina.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Valenzona. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Valenzona 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
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Valenzona in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Valenzona, the largest self-reported group is Asian/Pacific Islander at 71.8%. The next largest groups are Hispanic (13.6%) and White (8.7%).
Origin
The surname Valenzona is of Italian origin, specifically from the northern region of Lombardy. It is believed to have originated in the late 15th or early 16th century. The name is likely derived from a combination of two Italian words: "valle" meaning valley, and "zona" meaning area or region. This suggests that the name may have referred to a specific valley or region where the earliest bearers of the name resided.
One of the earliest recorded instances of the name Valenzona can be found in a document from the city of Milan, dated 1512. This document mentions a certain Girolamo Valenzona, who was a local merchant and landowner. Another early record comes from the nearby town of Bergamo, where a family by the name of Valenzona is mentioned in a register from 1537.
In the 17th century, the name appears to have spread to other parts of northern Italy, particularly in the region of Veneto. A notable figure from this time was Francesco Valenzona, a renowned architect who was born in Venice in 1624 and is credited with designing several churches and palaces in the Venetian style.
As the centuries progressed, the Valenzona name continued to be present in various parts of Italy. In the 18th century, a certain Giuseppe Valenzona (1712-1789) was a respected scholar and linguist from the city of Genoa, who wrote several works on the history and dialects of the region.
Another notable bearer of the name was Ernesto Valenzona (1856-1929), a politician and lawyer from Turin who served as a member of the Italian parliament in the late 19th and early 20th centuries. He was known for his work in advocating for workers' rights and social reforms.
In the 20th century, the name Valenzona gained some literary recognition with the writer and poet Luciano Valenzona (1914-1992), who was born in Novara and published several collections of poetry and prose works that explored themes of love, nature, and the human condition.
While the name Valenzona is not among the most common Italian surnames, it has left a mark in various fields throughout the centuries, from architecture and scholarship to politics and literature. Its origins can be traced back to the valleys and regions of northern Italy, where the earliest bearers of this name lived and worked.
Demographics
Among Census respondents with the surname Valenzona, the largest self-reported group is Asian/Pacific Islander at 71.8%. The next largest groups are Hispanic (13.6%) and White (8.7%).
The bar chart below shows how Valenzona 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 Valenzona surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Valenzona appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2010
National surname rank
First available Census row
2020
National surname rank
-19 bearers (-15.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #137,327 | 122 | 0.04 | First available Census row | First available Census row |
| 2020 | #154,182 | 103 | 0.03 | -19 bearers (-15.6%) | Down 16,855 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
How has the Valenzona surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #137,327 | #154,182 | -12.3% |
| Count | 122 | 103 | -15.6% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Valenzona bearers went from 122 to 103 (-15.6% change). The surname moved down 16,855 positions in the national ranking, going from #137,327 to #154,182.
FAQ
Name Census estimates that about 118 living Americans carry the surname Valenzona. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
Valenzona ranks #154,182 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 103 people with the surname Valenzona. That is different from the site's living-bearer estimate (118), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Valenzona.
Between 2010 and 2020, the surname Valenzona went from 122 recorded bearers to 103. That is a decrease of 19 (-15.6%). In the national ranking it fell from #137,327 to #154,182.
Among Census respondents with the surname Valenzona, the largest self-reported group is Asian/Pacific Islander at 71.8%. The next largest groups are Hispanic (13.6%) and White (8.7%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Asian/Pacific Islander is the largest self-reported group for the surname Valenzona in the 2020 Census, accounting for 71.8% (74 people in the source table).
Valenzona appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (71.8%), Hispanic (13.6%), White (8.7%). 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.
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 Valenzona (2010, 2020).
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.
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.
A habitational surname derived from a place name in Italy, possibly originating from the Italian region Valtellina. The fuller origin note on this page goes into more detail.
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.
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 Valenzona (0.03 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.