2000
#131,366
National surname rank
Recorded bearers 119
First available Census row
Per 100,000 0.04
Very Rare Last name
Thomopoulos
A Greek surname meaning son of a mason or stonemason.
According to the 2020 US Census Bureau surname tables, roughly 125 Americans carry the last name Thomopoulos. 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 Thomopoulos 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 Thomopoulos 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 Thomopoulos, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (2.8%) and Black (1.8%).
Origin
Meaning and origin of Thomopoulos
The surname Thomopoulos originates from Greece and dates back to the Byzantine era. It is derived from the Greek words "thomos" meaning bundle and "poulos" meaning merchant or trader, suggesting that the name was originally given to someone who dealt in the trade of bundles or packages.
During the Byzantine period, the name Thomopoulos can be found in various historical records and manuscripts, particularly in regions such as Constantinople and the surrounding areas of modern-day Turkey. The earliest known reference to the name dates back to the 11th century, where it appears in a legal document from the city of Thessaloniki.
In the 13th century, a wealthy merchant named Georgios Thomopoulos is recorded as having owned several properties and trading vessels in the port city of Smyrna (now Izmir, Turkey). His son, Konstantinos Thomopoulos, was a prominent figure in the local administration and is mentioned in various chronicles from that time.
One of the most notable individuals with the surname Thomopoulos was Ioannis Thomopoulos (1536-1612), a scholar and philosopher who taught at the prestigious Patriarchal School in Constantinople. His writings on theology and ethics were widely studied across the Byzantine Empire.
During the Ottoman period, the surname Thomopoulos can be found in records from various regions of modern-day Greece, particularly in the Peloponnese and the islands of the Aegean Sea. A notable figure from this era was Nikolaos Thomopoulos (1678-1742), a renowned painter and iconographer whose works adorned many churches and monasteries throughout Greece.
In more recent history, Theodoros Thomopoulos (1819-1899) was a prominent Greek politician and diplomat who served as the Foreign Minister of Greece and played a significant role in the negotiations leading to the establishment of the modern Greek state.
Throughout the centuries, the surname Thomopoulos has been associated with various professions and occupations, including merchants, scholars, artists, and statesmen. While the name's origins can be traced back to the Byzantine era, it has endured and become a respected surname within the Greek community.
Demographics
Ancestry and ethnicity for Thomopoulos
Among Census respondents with the surname Thomopoulos, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (2.8%) and Black (1.8%).
The bar chart below shows how Thomopoulos 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 Thomopoulos surname at the time of the 2020 Census, not any inherent property of the name itself.
- White93.6% · 102
- Two or more races2.8% · 3
- Black or African American1.8% · 2
- Hispanic or Latino1.8% · 2
Timeline
Historical Census data for Thomopoulos
Thomopoulos 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
#131,379
National surname rank
Recorded bearers 129
+10 bearers (+8.4%)
Per 100,000 0.04
Rank movement Down 13 places
2020
#150,205
National surname rank
Recorded bearers 109
-20 bearers (-15.5%)
Per 100,000 0.04
Rank movement Down 18,826 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #131,366 | 119 | 0.04 | First available Census row | First available Census row |
| 2010 | #131,379 | 129 | 0.04 | +10 bearers (+8.4%) | Down 13 places |
| 2020 | #150,205 | 109 | 0.04 | -20 bearers (-15.5%) | Down 18,826 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 Thomopoulos 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 | #131,379 | #150,205 | -14.3% |
| Count | 129 | 109 | -15.5% |
| Per 100K | 0.04 | 0.04 | -8.8% |
Between the 2010 and 2020 Census, the number of Thomopoulos bearers went from 129 to 109 (-15.5% change). The surname moved down 18,826 positions in the national ranking, going from #131,379 to #150,205.
FAQ
Thomopoulos surname: questions and answers
How many people in the U.S. have the surname Thomopoulos?
Name Census estimates that about 125 living Americans carry the surname Thomopoulos. Using the current population baseline, that works out to roughly 1 in 2,742,035 residents.
How common is Thomopoulos?
Thomopoulos 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 Thomopoulos. 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 Thomopoulos.
Has Thomopoulos become more or less common over time?
Between 2010 and 2020, the surname Thomopoulos went from 129 recorded bearers to 109. That is a decrease of 20 (-15.5%). In the national ranking it fell from #131,379 to #150,205.
What does the Census say about the background of Thomopoulos?
Among Census respondents with the surname Thomopoulos, the largest self-reported group is White at 93.6%. The next largest groups are Two or More Races (2.8%) and Black (1.8%). 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 Thomopoulos in the 2020 Census, accounting for 93.6% (102 people in the source table).
What is the full ancestry breakdown?
Thomopoulos appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (93.6%), Two or More Races (2.8%), Black (1.8%). 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 Thomopoulos (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 Thomopoulos mean?
A Greek surname meaning son of a mason or stonemason. 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 Thomopoulos (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 are called Thomopoulos?
If you just want to know how many people are called Thomopoulos, HowManyOfMe.org gives you the headline number in one glance.