2000
#150,436
National surname rank
Recorded bearers 100
First available Census row
Per 100,000 0.04
Very Rare Last name
Seramur
A surname possibly derived from a placename or indicating one's occupation or origin.
According to the 2020 US Census Bureau surname tables, roughly 117 Americans carry the last name Seramur. That puts it at #154,755 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,929,524 residents).
This page is the full Name Census profile for the Seramur 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
117
1 in 2,929,524
Census rank
#154,755
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
102
very rare in the US
Popularity narrative
The Census Bureau recorded 102 bearers of the surname Seramur in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154755th position in the national surname ranking.
Among Census respondents with the surname Seramur, the largest self-reported group is White at 81.4%. The next largest groups are Hispanic (9.8%) and Two or More Races (5.9%).
Origin
Meaning and origin of Seramur
The surname SERAMUR has its origins in the Iberian Peninsula, specifically in the regions of Spain and Portugal, dating back to the medieval period around the 11th century. It is believed to be derived from the Latin phrase "serra amor," which translates to "love of the mountains" or "lover of the hills."
One of the earliest known references to the name SERAMUR can be found in a medieval Spanish manuscript from the 13th century, which documented the names of soldiers who fought in the Reconquista against the Moors. This suggests that the name was likely associated with individuals who lived in mountainous or hilly regions and may have been involved in military campaigns during that period.
The name SERAMUR has been recorded in various medieval documents and records throughout the centuries, such as land registries, tax records, and legal documents. One notable historical figure bearing this surname was Rodrigo de SERAMUR, a Spanish nobleman and landowner who lived in the 15th century and was known for his involvement in local politics and governance.
As the SERAMUR family lineage expanded and spread across the Iberian Peninsula, variations in spelling and pronunciation emerged. Some of the earliest known variations include SERAMOR, SERAMOUR, and SERAMOR, which were likely influenced by regional dialects and local naming conventions.
Another notable individual with the surname SERAMUR was Isabel de SERAMUR, a Spanish noblewoman who lived in the 16th century and was known for her patronage of the arts and literature. Her name was recorded in various literary works and manuscripts from that era.
In the 17th century, Pedro SERAMUR, a Spanish explorer and navigator, gained recognition for his expeditions to the Americas and his contributions to the mapping of the New World. His name was documented in ship logs and expedition journals from that time period.
As the name SERAMUR spread beyond the Iberian Peninsula, it was also found in other parts of Europe and the Americas, where Spanish and Portuguese settlers established colonies and communities. One notable figure was Juan SERAMUR, a Spanish colonial administrator who lived in the 18th century and played a significant role in the governance of Spanish territories in the Americas.
While the surname SERAMUR has deep historical roots and has been associated with various influential individuals throughout the centuries, it is important to note that these accounts are based on limited historical records and may require further research and verification.
Demographics
Ancestry and ethnicity for Seramur
Among Census respondents with the surname Seramur, the largest self-reported group is White at 81.4%. The next largest groups are Hispanic (9.8%) and Two or More Races (5.9%).
The bar chart below shows how Seramur 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 Seramur surname at the time of the 2020 Census, not any inherent property of the name itself.
- White81.4% · 83
- Hispanic or Latino9.8% · 10
- Two or more races5.9% · 6
- Asian and Pacific Islander2.9% · 3
Timeline
Historical Census data for Seramur
Seramur 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
#147,253
National surname rank
Recorded bearers 112
+12 bearers (+12.0%)
Per 100,000 0.04
Rank movement Up 3,183 places
2020
#154,755
National surname rank
Recorded bearers 102
-10 bearers (-8.9%)
Per 100,000 0.03
Rank movement Down 7,502 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #150,436 | 100 | 0.04 | First available Census row | First available Census row |
| 2010 | #147,253 | 112 | 0.04 | +12 bearers (+12.0%) | Up 3,183 places |
| 2020 | #154,755 | 102 | 0.03 | -10 bearers (-8.9%) | Down 7,502 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 Seramur 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 | #147,253 | #154,755 | -5.1% |
| Count | 112 | 102 | -8.9% |
| Per 100K | 0.04 | 0.03 | -14.7% |
Between the 2010 and 2020 Census, the number of Seramur bearers went from 112 to 102 (-8.9% change). The surname moved down 7,502 positions in the national ranking, going from #147,253 to #154,755.
FAQ
Seramur surname: questions and answers
How many people in the U.S. have the surname Seramur?
Name Census estimates that about 117 living Americans carry the surname Seramur. Using the current population baseline, that works out to roughly 1 in 2,929,524 residents.
How common is Seramur?
Seramur ranks #154,755 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 102 people with the surname Seramur. That is different from the site's living-bearer estimate (117), 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 Seramur.
Has Seramur become more or less common over time?
Between 2010 and 2020, the surname Seramur went from 112 recorded bearers to 102. That is a decrease of 10 (-8.9%). In the national ranking it fell from #147,253 to #154,755.
What does the Census say about the background of Seramur?
Among Census respondents with the surname Seramur, the largest self-reported group is White at 81.4%. The next largest groups are Hispanic (9.8%) and Two or More Races (5.9%). 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 Seramur in the 2020 Census, accounting for 81.4% (83 people in the source table).
What is the full ancestry breakdown?
Seramur appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (81.4%), Hispanic (9.8%), Two or More Races (5.9%). 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 Seramur (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 Seramur mean?
A surname possibly derived from a placename or indicating one's occupation or origin. 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 Seramur (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 common is the surname Seramur?
For a quick modern take, check how many Americans have the surname Seramur on our sister site HowManyOfMe.org.