2000
#148,244
National surname rank
Recorded bearers 102
First available Census row
Per 100,000 0.04
Very Rare Last name
Dionis
A surname derived from the masculine Greek name Dionysios, meaning "of Dionysus" or "follower of Dionysus".
According to the 2020 US Census Bureau surname tables, roughly 128 Americans carry the last name Dionis. That puts it at #147,954 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,677,768 residents).
This page is the full Name Census profile for the Dionis 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
128
1 in 2,677,768
Census rank
#147,954
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
112
very rare in the US
Popularity narrative
The Census Bureau recorded 112 bearers of the surname Dionis in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147954th position in the national surname ranking.
Among Census respondents with the surname Dionis, the largest self-reported group is White at 84.8%. The next largest groups are Asian/Pacific Islander (7.1%) and Hispanic (4.5%).
Origin
Meaning and origin of Dionis
The surname DIONIS has its origins in medieval France, tracing back to the 12th century. It is derived from the Latin name Dionysius, which itself comes from the Greek name Dionysios, meaning "follower of Dionysus" - the god of wine, vegetation, pleasure, and fertility in Greek mythology.
The name first emerged in the region of Normandy, where it was initially spelled as "Denys" or "Dennys". It is believed that the variant spelling "Dionis" arose from the influence of the Old French word "dion", meaning "lord" or "master".
One of the earliest recorded instances of the name DIONIS can be found in the Rotuli Hundredorum, a census-like record compiled in England in 1274-1275. This document mentions a "William Dionis" from the county of Somerset.
In the 14th century, the name appeared in various English records, such as the Feet of Fines for Wiltshire in 1349, which mentions a "John Dionis". The Hundred Rolls of Oxfordshire from 1279 also refers to a "Walter Dionis".
Notable individuals bearing the surname DIONIS throughout history include:
1. Peter Dionis (c. 1635-1705), a French surgeon and anatomist known for his work on the anatomy of the human body and the treatment of various diseases.
2. John Dionis (fl. 1690-1720), an English gardener and botanist who helped establish the Physic Garden at Chelsea, one of the oldest botanical gardens in Britain.
3. Edmund Dionis (1635-1679), an English clergyman and theologian who served as the Dean of Norwich Cathedral from 1672 until his death.
4. Jacques Dionis (1643-1718), a French physician and surgeon who published several influential works on anatomy and surgical techniques.
5. Pierre Dionis (1658-1718), a French obstetrician and surgeon who authored a widely-read treatise on midwifery and childbirth.
The surname DIONIS has also been associated with various place names in England, such as Dionis Hall in Hertfordshire and Dionis Manor in Essex, both of which trace their origins to the medieval period.
Demographics
Ancestry and ethnicity for Dionis
Among Census respondents with the surname Dionis, the largest self-reported group is White at 84.8%. The next largest groups are Asian/Pacific Islander (7.1%) and Hispanic (4.5%).
The bar chart below shows how Dionis 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 Dionis surname at the time of the 2020 Census, not any inherent property of the name itself.
- White84.8% · 95
- Asian and Pacific Islander7.1% · 8
- Hispanic or Latino4.5% · 5
- American Indian and Alaska Native1.8% · 2
- Two or more races1.8% · 2
Timeline
Historical Census data for Dionis
Dionis 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
#136,449
National surname rank
Recorded bearers 123
+21 bearers (+20.6%)
Per 100,000 0.04
Rank movement Up 11,795 places
2020
#147,954
National surname rank
Recorded bearers 112
-11 bearers (-8.9%)
Per 100,000 0.04
Rank movement Down 11,505 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #148,244 | 102 | 0.04 | First available Census row | First available Census row |
| 2010 | #136,449 | 123 | 0.04 | +21 bearers (+20.6%) | Up 11,795 places |
| 2020 | #147,954 | 112 | 0.04 | -11 bearers (-8.9%) | Down 11,505 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 Dionis 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 | #136,449 | #147,954 | -8.4% |
| Count | 123 | 112 | -8.9% |
| Per 100K | 0.04 | 0.04 | -6.3% |
Between the 2010 and 2020 Census, the number of Dionis bearers went from 123 to 112 (-8.9% change). The surname moved down 11,505 positions in the national ranking, going from #136,449 to #147,954.
FAQ
Dionis surname: questions and answers
How many people in the U.S. have the surname Dionis?
Name Census estimates that about 128 living Americans carry the surname Dionis. Using the current population baseline, that works out to roughly 1 in 2,677,768 residents.
How common is Dionis?
Dionis ranks #147,954 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 112 people with the surname Dionis. That is different from the site's living-bearer estimate (128), 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 Dionis.
Has Dionis become more or less common over time?
Between 2010 and 2020, the surname Dionis went from 123 recorded bearers to 112. That is a decrease of 11 (-8.9%). In the national ranking it fell from #136,449 to #147,954.
What does the Census say about the background of Dionis?
Among Census respondents with the surname Dionis, the largest self-reported group is White at 84.8%. The next largest groups are Asian/Pacific Islander (7.1%) and Hispanic (4.5%). 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 Dionis in the 2020 Census, accounting for 84.8% (95 people in the source table).
What is the full ancestry breakdown?
Dionis appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (84.8%), Asian/Pacific Islander (7.1%), Hispanic (4.5%). 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 Dionis (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 Dionis mean?
A surname derived from the masculine Greek name Dionysios, meaning "of Dionysus" or "follower of Dionysus". 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 Dionis (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 Dionis?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.