2010
#138,304
National surname rank
Recorded bearers 121
First available Census row
Per 100,000 0.04
Very Rare Last name
Requilman
A locational surname derived from a place name, possibly Spanish in origin.
According to the 2020 US Census Bureau surname tables, roughly 128 Americans carry the last name Requilman. That puts it at #147,954 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,677,768 residents).
This page is the full Name Census profile for the Requilman 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
128
1 in 2,677,768
Census rank
#147,954
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
112
very rare in the US
Popularity narrative
The Census Bureau recorded 112 bearers of the surname Requilman in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 147954th position in the national surname ranking.
Among Census respondents with the surname Requilman, the largest self-reported group is Asian/Pacific Islander at 53.6%. The next largest groups are White (30.4%) and Two or More Races (13.4%).
Origin
Meaning and origin of Requilman
The surname REQUILMAN originated in the Basque Country, a region straddling the border between Spain and France, around the 14th century. It likely derived from the Basque word "erreka," meaning stream or brook, and the suffix "-ilman," indicating a person or inhabitant, thus translating to "one who lives near a stream."
In the early days, the name was often spelled as "Errecalman" or "Errecailman," reflecting the pronunciation variations in the Basque language. As families migrated across the region, the spelling evolved into the modern form of REQUILMAN.
One of the earliest recorded mentions of the name can be found in a 1407 census document from the town of Ustaritz, where a family bearing the name "Errecailman" was listed as residents. This document provides valuable insight into the name's historical presence in the region.
Another notable reference comes from a 16th-century legal document in the Archives of Navarre, which mentions a certain Juan de REQUILMAN, a landowner embroiled in a property dispute. This record not only confirms the name's existence during that time but also suggests that some REQUILMAN families had achieved a certain level of prominence and wealth.
In the 17th century, a notable figure bearing the REQUILMAN name was Pedro de REQUILMAN (1620-1687), a Basque trader and merchant who established trade routes between the Basque Country and the Americas, contributing to the region's economic prosperity.
Another individual of note was Catalina de REQUILMAN (1745-1812), a renowned educator who founded one of the first schools for girls in the Basque Country, challenging societal norms and advocating for female education.
During the 19th century, the REQUILMAN name gained further recognition with the achievements of Joaquín de REQUILMAN (1835-1901), a influential politician and diplomat who played a crucial role in negotiating trade agreements between Spain and several South American nations.
Lastly, it is worth mentioning Ignacio de REQUILMAN (1872-1945), a renowned Basque artist whose paintings and sculptures captured the essence of Basque culture and landscapes, earning him widespread acclaim throughout Spain and beyond.
These examples illustrate the rich history and diverse contributions of individuals bearing the REQUILMAN surname, cementing its place in the cultural tapestry of the Basque Country and beyond.
Demographics
Ancestry and ethnicity for Requilman
Among Census respondents with the surname Requilman, the largest self-reported group is Asian/Pacific Islander at 53.6%. The next largest groups are White (30.4%) and Two or More Races (13.4%).
The bar chart below shows how Requilman 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 Requilman surname at the time of the 2020 Census, not any inherent property of the name itself.
- Asian and Pacific Islander53.6% · 60
- White30.4% · 34
- Two or more races13.4% · 15
- Hispanic or Latino2.7% · 3
Timeline
Historical Census data for Requilman
Requilman appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#147,954
National surname rank
Recorded bearers 112
-9 bearers (-7.4%)
Per 100,000 0.04
Rank movement Down 9,650 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #138,304 | 121 | 0.04 | First available Census row | First available Census row |
| 2020 | #147,954 | 112 | 0.04 | -9 bearers (-7.4%) | Down 9,650 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 Requilman 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 | #138,304 | #147,954 | -7.0% |
| Count | 121 | 112 | -7.4% |
| Per 100K | 0.04 | 0.04 | -6.3% |
Between the 2010 and 2020 Census, the number of Requilman bearers went from 121 to 112 (-7.4% change). The surname moved down 9,650 positions in the national ranking, going from #138,304 to #147,954.
FAQ
Requilman surname: questions and answers
How many people in the U.S. have the surname Requilman?
Name Census estimates that about 128 living Americans carry the surname Requilman. Using the current population baseline, that works out to roughly 1 in 2,677,768 residents.
How common is Requilman?
Requilman ranks #147,954 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 112 people with the surname Requilman. That is different from the site's living-bearer estimate (128), 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 Requilman.
Has Requilman become more or less common over time?
Between 2010 and 2020, the surname Requilman went from 121 recorded bearers to 112. That is a decrease of 9 (-7.4%). In the national ranking it fell from #138,304 to #147,954.
What does the Census say about the background of Requilman?
Among Census respondents with the surname Requilman, the largest self-reported group is Asian/Pacific Islander at 53.6%. The next largest groups are White (30.4%) and Two or More Races (13.4%). 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 Requilman in the 2020 Census, accounting for 53.6% (60 people in the source table).
What is the full ancestry breakdown?
Requilman appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (53.6%), White (30.4%), Two or More Races (13.4%). 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 Requilman (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 Requilman mean?
A locational surname derived from a place name, possibly Spanish in 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 Requilman (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 share the surname Requilman?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.