2000
#122,534
National surname rank
Recorded bearers 130
First available Census row
Per 100,000 0.05
Very Rare Last name
Gromis
A surname potentially derived from the Polish term meaning "sound" or "noise."
According to the 2020 US Census Bureau surname tables, roughly 138 Americans carry the last name Gromis. That puts it at #142,049 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,483,727 residents).
This page is the full Name Census profile for the Gromis 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
138
1 in 2,483,727
Census rank
#142,049
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
120
very rare in the US
Popularity narrative
The Census Bureau recorded 120 bearers of the surname Gromis in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142049th position in the national surname ranking.
Among Census respondents with the surname Gromis, the largest self-reported group is White at 87.5%. The next largest groups are Two or More Races (8.3%) and Asian/Pacific Islander (3.3%).
Origin
Meaning and origin of Gromis
The surname GROMIS is of Italian origin, tracing its roots back to the medieval period. It is believed to have originated in the northern regions of Italy, particularly in the areas surrounding the cities of Genoa and Milan.
One of the earliest known references to the name GROMIS can be found in the historical records of the Genoese Republic, dating back to the 13th century. During this time, the name was often associated with families involved in maritime trade and commerce, reflecting the economic prominence of the region.
The name GROMIS is thought to be derived from the Latin word "gromen," which referred to a type of measuring tool used in surveying and construction. This connection suggests that the surname may have initially been an occupational name, given to individuals who worked as surveyors or in related professions.
In the 14th century, a notable figure bearing the surname GROMIS was Marco Gromis, a skilled navigator and explorer who participated in several expeditions sponsored by the Republic of Genoa. His travels and contributions to nautical cartography were documented in various maritime logs and chronicles of the time.
During the Renaissance period, the GROMIS family continued to establish itself as a respected lineage in the city of Milan. One prominent member was Giulio Gromis (1523-1592), a renowned architect and sculptor whose works adorned several churches and palaces in the Milanese region.
In the 17th century, the GROMIS name gained further recognition with the birth of Francesco Gromis (1619-1692), a celebrated philosopher and theologian. His scholarly writings on ethics and moral philosophy were widely studied and debated within academic circles throughout Italy and beyond.
Another notable figure was Cesare Gromis (1745-1818), a military officer who served with distinction in the Napoleonic Wars. His bravery and leadership earned him various honors and commendations, solidifying the GROMIS family's reputation for valor and service.
As the centuries progressed, the GROMIS surname continued to spread throughout Italy and beyond, carried by individuals who made significant contributions in various fields, from the arts and sciences to politics and commerce.
Demographics
Ancestry and ethnicity for Gromis
Among Census respondents with the surname Gromis, the largest self-reported group is White at 87.5%. The next largest groups are Two or More Races (8.3%) and Asian/Pacific Islander (3.3%).
The bar chart below shows how Gromis 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 Gromis surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.5% · 105
- Two or more races8.3% · 10
- Asian and Pacific Islander3.3% · 4
- American Indian and Alaska Native0.8% · 1
Timeline
Historical Census data for Gromis
Gromis 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
#143,149
National surname rank
Recorded bearers 116
-14 bearers (-10.8%)
Per 100,000 0.04
Rank movement Down 20,615 places
2020
#142,049
National surname rank
Recorded bearers 120
+4 bearers (+3.4%)
Per 100,000 0.04
Rank movement Up 1,100 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #122,534 | 130 | 0.05 | First available Census row | First available Census row |
| 2010 | #143,149 | 116 | 0.04 | -14 bearers (-10.8%) | Down 20,615 places |
| 2020 | #142,049 | 120 | 0.04 | +4 bearers (+3.4%) | Up 1,100 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 Gromis 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 | #143,149 | #142,049 | 0.8% |
| Count | 116 | 120 | 3.4% |
| Per 100K | 0.04 | 0.04 | 0.4% |
Between the 2010 and 2020 Census, the number of Gromis bearers went from 116 to 120 (+3.4% change). The surname moved up 1,100 positions in the national ranking, going from #143,149 to #142,049.
FAQ
Gromis surname: questions and answers
How many people in the U.S. have the surname Gromis?
Name Census estimates that about 138 living Americans carry the surname Gromis. Using the current population baseline, that works out to roughly 1 in 2,483,727 residents.
How common is Gromis?
Gromis ranks #142,049 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 120 people with the surname Gromis. That is different from the site's living-bearer estimate (138), 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 Gromis.
Has Gromis become more or less common over time?
Between 2010 and 2020, the surname Gromis went from 116 recorded bearers to 120. That is an increase of 4 (+3.4%). In the national ranking it rose from #143,149 to #142,049.
What does the Census say about the background of Gromis?
Among Census respondents with the surname Gromis, the largest self-reported group is White at 87.5%. The next largest groups are Two or More Races (8.3%) and Asian/Pacific Islander (3.3%). 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 Gromis in the 2020 Census, accounting for 87.5% (105 people in the source table).
What is the full ancestry breakdown?
Gromis appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.5%), Two or More Races (8.3%), Asian/Pacific Islander (3.3%). 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 Gromis (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 Gromis mean?
A surname potentially derived from the Polish term meaning "sound" or "noise." 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 Gromis (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 Gromis?
Want to know how common the surname Gromis is? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.