2010
#141,140
National surname rank
Recorded bearers 118
First available Census row
Per 100,000 0.04
Very Rare Last name
Gianakopoulos
A Greek surname meaning "son of a priest or clergyman".
According to the 2020 US Census Bureau surname tables, roughly 119 Americans carry the last name Gianakopoulos. That puts it at #153,590 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,880,289 residents).
This page is the full Name Census profile for the Gianakopoulos 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
119
1 in 2,880,289
Census rank
#153,590
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
104
very rare in the US
Popularity narrative
The Census Bureau recorded 104 bearers of the surname Gianakopoulos in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 153590th position in the national surname ranking.
Among Census respondents with the surname Gianakopoulos, the largest self-reported group is White at 94.2%. The next largest groups are Hispanic (3.8%) and American Indian/Alaska Native (1.9%).
Origin
Meaning and origin of Gianakopoulos
The surname Gianakopoulos has its origins in Greece, tracing back several centuries. It is a patronymic name, derived from the Greek name Gianakos, which itself is a diminutive form of the name Ioannis (John). The suffix "-opoulos" is a common Greek suffix meaning "son of," indicating that the surname literally means "son of Gianakos."
The earliest known references to the Gianakopoulos surname can be found in historical records from the Greek islands and mainland regions dating back to the 16th and 17th centuries. During this period, the name was sometimes spelled differently, such as Gianakopoulos, Yianakopoulos, or Giannacopolos, reflecting regional variations in spelling and pronunciation.
One of the earliest recorded individuals with the surname Gianakopoulos was Ioannis Gianakopoulos, a merchant from the island of Chios who lived in the late 16th century. His name appears in various trade records and legal documents from that time.
In the 18th century, a notable figure with this surname was Panagiotis Gianakopoulos, a Greek scholar and philosopher who lived from 1725 to 1798. He was known for his work on ancient Greek philosophy and his writings on ethics and morality.
Another prominent individual with the Gianakopoulos surname was Georgios Gianakopoulos, a Greek revolutionary who fought against the Ottoman Empire during the Greek War of Independence in the early 19th century. He was born in the village of Dimitsana in the Peloponnese region in 1786 and died in battle in 1826.
The Gianakopoulos surname has also been associated with various place names in Greece, particularly villages and towns in regions such as the Peloponnese, the Cyclades islands, and parts of central Greece. For example, there is a village called Gianakopoulo in the region of Arcadia, which likely derives its name from the surname.
In more recent history, one of the most famous individuals with the Gianakopoulos surname was Alexandros Gianakopoulos, a Greek journalist and writer who lived from 1923 to 2007. He was known for his work as a foreign correspondent and his novels that explored themes of Greek identity and culture.
Overall, the Gianakopoulos surname has a rich history deeply rooted in Greek culture and society, with references spanning several centuries and numerous notable individuals who have carried this name throughout the years.
Demographics
Ancestry and ethnicity for Gianakopoulos
Among Census respondents with the surname Gianakopoulos, the largest self-reported group is White at 94.2%. The next largest groups are Hispanic (3.8%) and American Indian/Alaska Native (1.9%).
The bar chart below shows how Gianakopoulos 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 Gianakopoulos surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.2% · 98
- Hispanic or Latino3.8% · 4
- American Indian and Alaska Native1.9% · 2
Timeline
Historical Census data for Gianakopoulos
Gianakopoulos 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.
2020
#153,590
National surname rank
Recorded bearers 104
-14 bearers (-11.9%)
Per 100,000 0.03
Rank movement Down 12,450 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #141,140 | 118 | 0.04 | First available Census row | First available Census row |
| 2020 | #153,590 | 104 | 0.03 | -14 bearers (-11.9%) | Down 12,450 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 Gianakopoulos 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 | #141,140 | #153,590 | -8.8% |
| Count | 118 | 104 | -11.9% |
| Per 100K | 0.04 | 0.03 | -13.0% |
Between the 2010 and 2020 Census, the number of Gianakopoulos bearers went from 118 to 104 (-11.9% change). The surname moved down 12,450 positions in the national ranking, going from #141,140 to #153,590.
FAQ
Gianakopoulos surname: questions and answers
How many people in the U.S. have the surname Gianakopoulos?
Name Census estimates that about 119 living Americans carry the surname Gianakopoulos. Using the current population baseline, that works out to roughly 1 in 2,880,289 residents.
How common is Gianakopoulos?
Gianakopoulos ranks #153,590 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.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 104 people with the surname Gianakopoulos. That is different from the site's living-bearer estimate (119), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
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 Gianakopoulos.
Has Gianakopoulos become more or less common over time?
Between 2010 and 2020, the surname Gianakopoulos went from 118 recorded bearers to 104. That is a decrease of 14 (-11.9%). In the national ranking it fell from #141,140 to #153,590.
What does the Census say about the background of Gianakopoulos?
Among Census respondents with the surname Gianakopoulos, the largest self-reported group is White at 94.2%. The next largest groups are Hispanic (3.8%) and American Indian/Alaska Native (1.9%). 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 Gianakopoulos in the 2020 Census, accounting for 94.2% (98 people in the source table).
What is the full ancestry breakdown?
Gianakopoulos appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.2%), Hispanic (3.8%), American Indian/Alaska Native (1.9%). 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 Gianakopoulos (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 Gianakopoulos mean?
A Greek surname meaning "son of a priest or clergyman". 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 Gianakopoulos (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.
How many people share the surname Gianakopoulos?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.