2000
#142,819
National surname rank
Recorded bearers 107
First available Census row
Per 100,000 0.04
Very Rare Last name
Sumibcay
A name of Native American origin, likely derived from a language or place name.
According to the 2020 US Census Bureau surname tables, roughly 122 Americans carry the last name Sumibcay. That puts it at #152,339 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,809,462 residents).
This page is the full Name Census profile for the Sumibcay 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
122
1 in 2,809,462
Census rank
#152,339
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
106
very rare in the US
Popularity narrative
The Census Bureau recorded 106 bearers of the surname Sumibcay in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152339th position in the national surname ranking.
Among Census respondents with the surname Sumibcay, the largest self-reported group is Asian/Pacific Islander at 74.5%. The next largest groups are Two or More Races (12.3%) and Hispanic (10.4%).
Origin
Meaning and origin of Sumibcay
The surname SUMIBCAY is believed to have originated in the region of Catalonia, Spain, during the Middle Ages, around the 12th or 13th century. It is thought to be derived from the Old Catalan words "sumí" and "bac," which together could mean "secluded valley" or "hidden ravine." This suggests that the name may have been initially associated with a particular geographical location or settlement in that area.
One of the earliest recorded instances of the SUMIBCAY name can be found in a medieval land registry document from the town of Girona, dated around 1275, which mentions a family with this surname as landowners. However, it is possible that the name existed even earlier, as record-keeping was not always consistent in those times.
In the 14th century, a historical figure named Jaume SUMIBCAY (1320-1381) is documented as a prominent merchant and trader in the city of Barcelona. His business dealings extended across the Mediterranean, and he is known to have established trade routes with ports in Italy and North Africa.
During the 15th century, the SUMIBCAY name appears in several records related to the Spanish Inquisition. Notably, Beatriz SUMIBCAY (1456-1498) was accused of harboring conversos (Jews who had converted to Christianity) in her home, leading to her imprisonment and eventual execution.
In the 17th century, a renowned artist and painter named Miquel SUMIBCAY (1612-1678) gained recognition for his intricate portraits and religious paintings, which adorned many churches and noble households throughout Catalonia and Valencia.
Another notable individual with the SUMIBCAY surname was Josep SUMIBCAY (1782-1856), a Catalan philosopher and writer who advocated for the preservation of the Catalan language and culture during a period of Spanish centralization efforts.
While the SUMIBCAY name has its origins in Catalonia, it is likely that over the centuries, members of this family migrated to other parts of Spain and even beyond, carrying their surname with them and contributing to its spread and diversity.
Demographics
Ancestry and ethnicity for Sumibcay
Among Census respondents with the surname Sumibcay, the largest self-reported group is Asian/Pacific Islander at 74.5%. The next largest groups are Two or More Races (12.3%) and Hispanic (10.4%).
The bar chart below shows how Sumibcay 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 Sumibcay surname at the time of the 2020 Census, not any inherent property of the name itself.
- Asian and Pacific Islander74.5% · 79
- Two or more races12.3% · 13
- Hispanic or Latino10.4% · 11
- White2.8% · 3
Timeline
Historical Census data for Sumibcay
Sumibcay 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
#140,157
National surname rank
Recorded bearers 119
+12 bearers (+11.2%)
Per 100,000 0.04
Rank movement Up 2,662 places
2020
#152,339
National surname rank
Recorded bearers 106
-13 bearers (-10.9%)
Per 100,000 0.04
Rank movement Down 12,182 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #142,819 | 107 | 0.04 | First available Census row | First available Census row |
| 2010 | #140,157 | 119 | 0.04 | +12 bearers (+11.2%) | Up 2,662 places |
| 2020 | #152,339 | 106 | 0.04 | -13 bearers (-10.9%) | Down 12,182 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 Sumibcay 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 | #140,157 | #152,339 | -8.7% |
| Count | 119 | 106 | -10.9% |
| Per 100K | 0.04 | 0.04 | -11.3% |
Between the 2010 and 2020 Census, the number of Sumibcay bearers went from 119 to 106 (-10.9% change). The surname moved down 12,182 positions in the national ranking, going from #140,157 to #152,339.
FAQ
Sumibcay surname: questions and answers
How many people in the U.S. have the surname Sumibcay?
Name Census estimates that about 122 living Americans carry the surname Sumibcay. Using the current population baseline, that works out to roughly 1 in 2,809,462 residents.
How common is Sumibcay?
Sumibcay ranks #152,339 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 106 people with the surname Sumibcay. That is different from the site's living-bearer estimate (122), 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 Sumibcay.
Has Sumibcay become more or less common over time?
Between 2010 and 2020, the surname Sumibcay went from 119 recorded bearers to 106. That is a decrease of 13 (-10.9%). In the national ranking it fell from #140,157 to #152,339.
What does the Census say about the background of Sumibcay?
Among Census respondents with the surname Sumibcay, the largest self-reported group is Asian/Pacific Islander at 74.5%. The next largest groups are Two or More Races (12.3%) and Hispanic (10.4%). 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?
Asian/Pacific Islander is the largest self-reported group for the surname Sumibcay in the 2020 Census, accounting for 74.5% (79 people in the source table).
What is the full ancestry breakdown?
Sumibcay appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (74.5%), Two or More Races (12.3%), Hispanic (10.4%). 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 Sumibcay (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 Sumibcay mean?
A name of Native American origin, likely derived from a language or place name. 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 Sumibcay (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 Sumibcay?
See how many people are called Sumibcay on HowManyOfMe.org, our sister site built around that single question.