2000
#138,741
National surname rank
Recorded bearers 111
First available Census row
Per 100,000 0.04
Very Rare Last name
Diakos
A Greek surname derived from the Greek word "diakos" meaning a messenger or courier.
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Diakos. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Diakos 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
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Diakos in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Diakos, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (6.0%) and Black (0.9%).
Origin
Meaning and origin of Diakos
The surname DIAKOS originated in Greece, with records dating back to the late 18th century. It is believed to be derived from the Greek word "diakonos," which means "servant" or "assistant." This suggests that the name may have been given to individuals who worked in service roles or as assistants to clergy or other authority figures.
The earliest known record of the DIAKOS surname can be found in a church register from the village of Levidi, located in the Arcadia region of the Peloponnese peninsula, in the late 1700s. This area was known for its rich history and strong cultural traditions, which may have influenced the origins and usage of the name.
One of the most notable individuals with the DIAKOS surname was Theodoros Diakos, a Greek military officer and revolutionary leader who played a pivotal role in the Greek War of Independence against the Ottoman Empire. Born in 1772 in the village of Alevrokhori, Diakos became a symbol of resistance and national pride for his bravery and sacrifices during the conflict.
Another historical figure with the DIAKOS surname was Ioannis Diakos, a Greek merchant and shipowner from the island of Hydra, who lived in the late 18th and early 19th centuries. Ioannis was known for his successful trading ventures and his contributions to the island's economy and maritime industry.
In the realm of literature, the name DIAKOS is associated with Konstantinos Diakos, a Greek poet and novelist born in 1879 in the town of Pyrgos, Peloponnese. Diakos was a prominent figure in the literary circles of his time and is remembered for his works that explored themes of love, nature, and Greek identity.
The DIAKOS surname can also be found in historical records from other parts of Greece, such as the islands of the Aegean Sea and the regions of Epirus and Macedonia. This suggests that the name may have been adopted or carried by individuals who migrated or traveled within the Greek territories over time.
Throughout its history, the DIAKOS surname has maintained its Greek roots and has been associated with individuals who have made significant contributions to various fields, including military service, commerce, literature, and the preservation of Greek cultural heritage.
Demographics
Ancestry and ethnicity for Diakos
Among Census respondents with the surname Diakos, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (6.0%) and Black (0.9%).
The bar chart below shows how Diakos 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 Diakos surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.2% · 109
- Hispanic or Latino6.0% · 7
- Black or African American0.9% · 1
Timeline
Historical Census data for Diakos
Diakos 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
#146,201
National surname rank
Recorded bearers 113
+2 bearers (+1.8%)
Per 100,000 0.04
Rank movement Down 7,460 places
2020
#144,270
National surname rank
Recorded bearers 117
+4 bearers (+3.5%)
Per 100,000 0.04
Rank movement Up 1,931 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #138,741 | 111 | 0.04 | First available Census row | First available Census row |
| 2010 | #146,201 | 113 | 0.04 | +2 bearers (+1.8%) | Down 7,460 places |
| 2020 | #144,270 | 117 | 0.04 | +4 bearers (+3.5%) | Up 1,931 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 Diakos 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 | #146,201 | #144,270 | 1.3% |
| Count | 113 | 117 | 3.5% |
| Per 100K | 0.04 | 0.04 | -2.1% |
Between the 2010 and 2020 Census, the number of Diakos bearers went from 113 to 117 (+3.5% change). The surname moved up 1,931 positions in the national ranking, going from #146,201 to #144,270.
FAQ
Diakos surname: questions and answers
How many people in the U.S. have the surname Diakos?
Name Census estimates that about 134 living Americans carry the surname Diakos. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Diakos?
Diakos ranks #144,270 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 117 people with the surname Diakos. That is different from the site's living-bearer estimate (134), 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 Diakos.
Has Diakos become more or less common over time?
Between 2010 and 2020, the surname Diakos went from 113 recorded bearers to 117. That is an increase of 4 (+3.5%). In the national ranking it rose from #146,201 to #144,270.
What does the Census say about the background of Diakos?
Among Census respondents with the surname Diakos, the largest self-reported group is White at 93.2%. The next largest groups are Hispanic (6.0%) and Black (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 Diakos in the 2020 Census, accounting for 93.2% (109 people in the source table).
What is the full ancestry breakdown?
Diakos appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.2%), Hispanic (6.0%), Black (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 Diakos (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 Diakos mean?
A Greek surname derived from the Greek word "diakos" meaning a messenger or courier. 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 Diakos (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 common is the surname Diakos?
See how many Americans have the surname Diakos on HowManyOfMe.org, our sister site built around that single question.