2000
#126,400
National surname rank
Recorded bearers 125
First available Census row
Per 100,000 0.05
Very Rare Last name
Rinchiuso
An Italian surname meaning "enclosed" or "confined."
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Rinchiuso. That puts it at #150,205 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,742,035 residents).
This page is the full Name Census profile for the Rinchiuso 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
125
1 in 2,742,035
Census rank
#150,205
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
109
very rare in the US
Popularity narrative
The Census Bureau recorded 109 bearers of the surname Rinchiuso in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 150205th position in the national surname ranking.
Among Census respondents with the surname Rinchiuso, the largest self-reported group is White at 94.5%. The next largest groups are Hispanic (4.6%) and Two or More Races (0.9%).
Origin
Meaning and origin of Rinchiuso
The surname RINCHIUSO is of Italian origin, first recorded in the late medieval period. It is derived from the Italian word "rinchiuso," which means "locked up" or "enclosed." This suggests that the name may have originated as a descriptive surname for someone who lived in a walled town or worked as a gatekeeper or jailer.
The earliest known references to the RINCHIUSO surname can be found in historical records from the regions of Tuscany and Umbria in central Italy, dating back to the 13th and 14th centuries. Some of the earliest documented examples include a Giovanni Rinchiuso, a merchant from Siena mentioned in a trade document from 1285, and a Pietra Rinchiuso, a landowner from Perugia listed in a property deed from 1312.
In the 15th century, the RINCHIUSO name appeared in various municipal records and tax rolls in cities like Florence and Arezzo. This suggests that the family had established itself as a respected lineage in the area. One notable figure from this time was Tommaso Rinchiuso, a wealthy banker and patron of the arts born in Florence in 1442.
During the Renaissance period, the RINCHIUSO name spread throughout the Italian peninsula. In the 16th century, a branch of the family settled in the Kingdom of Naples, where they acquired land and titles. One prominent member was Girolamo Rinchiuso, a military commander who fought in the Italian Wars and was granted a noble title by the Spanish Crown in 1557.
By the 17th and 18th centuries, the RINCHIUSO name had also gained a foothold in other parts of Europe, likely due to migration and trade. Records show individuals with this surname living in France, Spain, and even as far as England and the Netherlands. One notable figure from this period was Filippo Rinchiuso, a renowned Italian architect who designed several churches and palaces in Rome and Naples between 1650 and 1705.
Other historical figures bearing the RINCHIUSO surname include Giovanni Battista Rinchiuso, an Italian painter active in the late 18th century, known for his religious works and portraiture, and Vincenzo Rinchiuso, a 19th-century Italian composer and musician who wrote several operas and symphonic works.
Demographics
Ancestry and ethnicity for Rinchiuso
Among Census respondents with the surname Rinchiuso, the largest self-reported group is White at 94.5%. The next largest groups are Hispanic (4.6%) and Two or More Races (0.9%).
The bar chart below shows how Rinchiuso 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 Rinchiuso surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.5% · 103
- Hispanic or Latino4.6% · 5
- Two or more races0.9% · 1
Timeline
Historical Census data for Rinchiuso
Rinchiuso 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
#135,593
National surname rank
Recorded bearers 124
-1 bearers (-0.8%)
Per 100,000 0.04
Rank movement Down 9,193 places
2020
#150,205
National surname rank
Recorded bearers 109
-15 bearers (-12.1%)
Per 100,000 0.04
Rank movement Down 14,612 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #126,400 | 125 | 0.05 | First available Census row | First available Census row |
| 2010 | #135,593 | 124 | 0.04 | -1 bearers (-0.8%) | Down 9,193 places |
| 2020 | #150,205 | 109 | 0.04 | -15 bearers (-12.1%) | Down 14,612 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 Rinchiuso 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 | #135,593 | #150,205 | -10.8% |
| Count | 124 | 109 | -12.1% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Rinchiuso bearers went from 124 to 109 (-12.1% change). The surname moved down 14,612 positions in the national ranking, going from #135,593 to #150,205.
FAQ
Rinchiuso surname: questions and answers
How many people in the U.S. have the surname Rinchiuso?
Name Census estimates that about 125 living Americans carry the surname Rinchiuso. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
How common is Rinchiuso?
Rinchiuso ranks #150,205 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 109 people with the surname Rinchiuso. That is different from the site's living-bearer estimate (125), 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 Rinchiuso.
Has Rinchiuso become more or less common over time?
Between 2010 and 2020, the surname Rinchiuso went from 124 recorded bearers to 109. That is a decrease of 15 (-12.1%). In the national ranking it fell from #135,593 to #150,205.
What does the Census say about the background of Rinchiuso?
Among Census respondents with the surname Rinchiuso, the largest self-reported group is White at 94.5%. The next largest groups are Hispanic (4.6%) and Two or More Races (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 Rinchiuso in the 2020 Census, accounting for 94.5% (103 people in the source table).
What is the full ancestry breakdown?
Rinchiuso appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.5%), Hispanic (4.6%), Two or More Races (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 Rinchiuso (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 Rinchiuso mean?
An Italian surname meaning "enclosed" or "confined." 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 Rinchiuso (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 people have the surname Rinchiuso?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.