2000
#85,297
National surname rank
First available Census row
A surname of Hungarian origin deriving from a nickname for someone of an industrious or diligent nature.
According to the 2020 US Census Bureau surname tables, roughly 259 Americans carry the last name Marosi. That puts it at #88,273 in the national surname ranking, appearing at a frequency of 0.08 per 100,000 people (about 1 in 1,323,376 residents).
This page is the full Name Census profile for the Marosi 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
259
1 in 1,323,376
Census rank
#88,273
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
226
very rare in the US
Popularity narrative
The Census Bureau recorded 226 bearers of the surname Marosi in its 2020 decennial surname file. At a rate of 0.08 per 100,000 residents, it holds the 88273rd position in the national surname ranking.
Among Census respondents with the surname Marosi, the largest self-reported group is White at 85.0%. The next largest groups are Hispanic (11.1%) and Two or More Races (1.8%).
Origin
The surname Marosi has its origins in Hungary, and it is believed to have emerged during the medieval period. The name is thought to be derived from the Hungarian word "maros," which refers to the Mureș River, a major waterway that flows through present-day Romania and Hungary.
According to historical records, the earliest known instances of the name Marosi can be traced back to the 13th century, when it was commonly used in regions along the Mureș River. The surname was likely adopted by individuals who resided near or had some association with the river or the surrounding areas.
One of the earliest recorded references to the surname Marosi can be found in a 14th-century document from the city of Szeged, where a nobleman named Márton Marosi was mentioned as a landowner. This document provides valuable insight into the prevalence of the name during that era.
In the 15th century, the name Marosi appeared in several historical records, including a legal document from the town of Makó, which referred to a certain János Marosi as a prominent citizen. Additionally, a 16th-century manuscript from the city of Arad mentions a merchant named István Marosi, suggesting that the name was also associated with trade and commerce during that time.
One notable individual bearing the surname Marosi was György Marosi (1570-1632), a Hungarian nobleman and military commander who played a significant role in the Long Turkish War against the Ottoman Empire. His exploits and leadership in various battles earned him recognition and cemented the Marosi name in Hungarian history.
Another prominent figure was Géza Marosi (1853-1923), a renowned Hungarian architect and urban planner who had a profound impact on the architectural landscape of Budapest. He designed several notable buildings, including the famous Gellért Thermal Bath complex, which remains a iconic landmark in the city.
In the realm of literature, the name Marosi is associated with the acclaimed Hungarian poet and writer, Endre Marosi (1916-1992). His works, which explored themes of love, nature, and the human condition, earned him widespread acclaim and numerous literary awards during his lifetime.
Furthermore, the name Marosi has been linked to several place names in Hungary, such as Marosszék, a former administrative region, and Marosvásárhely, a city located along the Mureș River. These place names likely derived from the river's name and may have influenced the surname's formation and usage.
Demographics
Among Census respondents with the surname Marosi, the largest self-reported group is White at 85.0%. The next largest groups are Hispanic (11.1%) and Two or More Races (1.8%).
The bar chart below shows how Marosi 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 Marosi surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Marosi 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.
2000
National surname rank
First available Census row
2010
National surname rank
+6 bearers (+2.9%)
2020
National surname rank
+16 bearers (+7.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #85,297 | 204 | 0.08 | First available Census row | First available Census row |
| 2010 | #88,336 | 210 | 0.07 | +6 bearers (+2.9%) | Down 3,039 places |
| 2020 | #88,273 | 226 | 0.08 | +16 bearers (+7.6%) | Up 63 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
How has the Marosi surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #88,336 | #88,273 | 0.1% |
| Count | 210 | 226 | 7.6% |
| Per 100K | 0.07 | 0.08 | 8.0% |
Between the 2010 and 2020 Census, the number of Marosi bearers went from 210 to 226 (+7.6% change). The surname moved up 63 positions in the national ranking, going from #88,336 to #88,273.
FAQ
Name Census estimates that about 259 living Americans carry the surname Marosi. Using the current population baseline, that works out to roughly 1 in 1,323,376 residents.
Marosi ranks #88,273 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.08 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 226 people with the surname Marosi. That is different from the site's living-bearer estimate (259), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
It is the Census Bureau's normalized frequency measure. A rate of 0.08 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 Marosi.
Between 2010 and 2020, the surname Marosi went from 210 recorded bearers to 226. That is an increase of 16 (+7.6%). In the national ranking it rose from #88,336 to #88,273.
Among Census respondents with the surname Marosi, the largest self-reported group is White at 85.0%. The next largest groups are Hispanic (11.1%) and Two or More Races (1.8%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Marosi in the 2020 Census, accounting for 85.0% (192 people in the source table).
Marosi appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (85.0%), Hispanic (11.1%), Two or More Races (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.
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 Marosi (2000, 2010, 2020).
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.
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.
A surname of Hungarian origin deriving from a nickname for someone of an industrious or diligent nature. The fuller origin note on this page goes into more detail.
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.
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 Marosi (0.08 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
Our sister site HowManyOfMe.org answers how common the surname Marosi is at a glance, with the living-bearer count up front.