2010
#149,395
National surname rank
Recorded bearers 110
First available Census row
Per 100,000 0.04
Very Rare Last name
Delcol
A surname possibly derived from French meaning "of the neck" or "from the hills".
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Delcol. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Delcol 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
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Delcol in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Delcol, the largest self-reported group is White at 95.7%. The next largest groups are Two or More Races (3.4%) and Hispanic (0.9%).
Origin
Meaning and origin of Delcol
The surname DELCOL is believed to have originated in the Basque region of northern Spain and southwestern France during the late medieval period, around the 13th or 14th century. It is thought to be derived from the Basque words "del" meaning "of the" and "kol" meaning "hill" or "slope," suggesting the name may have referred to someone who lived on or near a hillside.
One of the earliest known records of the name appears in a 1487 document from the town of Laguardia, in the province of Álava, Spain, which mentions a Sancho DELCOL. The spelling variation "DELACOL" can also be found in some 16th-century records from the nearby region of Navarre.
In the late 15th century, a branch of the DELCOL family migrated to the Iberian Peninsula's eastern coast, settling in the region of Valencia. Here, the name evolved into the variant "DELGOL," possibly influenced by the Catalan language spoken in the area.
Notable individuals with the DELCOL surname include Juan DELCOL (1521-1598), a merchant and landowner from Vitoria-Gasteiz, who played a significant role in the city's economic growth during the Renaissance period. Another prominent figure was María DELCOL (1678-1742), a renowned painter from Bilbao whose works are displayed in several museums across Spain.
In the 18th century, the DELCOL name spread to the Americas as part of the Spanish colonization efforts. One early example is Pedro DELCOL (1724-1803), a sailor from San Sebastián who became a prominent figure in the Spanish Navy and participated in the defense of Havana, Cuba, against the British in 1762.
During the 19th century, the DELCOL family produced several notable scholars and intellectuals, including José DELCOL (1812-1887), a linguist and author from Vitoria-Gasteiz who published works on the Basque language and culture, and Ignacio DELCOL (1845-1923), a philosopher and educator from Pamplona who taught at universities in Madrid and Barcelona.
Throughout its history, the DELCOL surname has maintained a strong presence in the Basque Country, particularly in the provinces of Álava, Vizcaya, and Navarre, as well as in parts of the neighboring regions of La Rioja and Aragón.
Demographics
Ancestry and ethnicity for Delcol
Among Census respondents with the surname Delcol, the largest self-reported group is White at 95.7%. The next largest groups are Two or More Races (3.4%) and Hispanic (0.9%).
The bar chart below shows how Delcol 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 Delcol surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.7% · 112
- Two or more races3.4% · 4
- Hispanic or Latino0.9% · 1
Timeline
Historical Census data for Delcol
Delcol 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
#144,270
National surname rank
Recorded bearers 117
+7 bearers (+6.4%)
Per 100,000 0.04
Rank movement Up 5,125 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #149,395 | 110 | 0.04 | First available Census row | First available Census row |
| 2020 | #144,270 | 117 | 0.04 | +7 bearers (+6.4%) | Up 5,125 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 Delcol 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 | #149,395 | #144,270 | 3.4% |
| Count | 110 | 117 | 6.4% |
| Per 100K | 0.04 | 0.04 | -2.1% |
Between the 2010 and 2020 Census, the number of Delcol bearers went from 110 to 117 (+6.4% change). The surname moved up 5,125 positions in the national ranking, going from #149,395 to #144,270.
FAQ
Delcol surname: questions and answers
How many people in the U.S. have the surname Delcol?
Name Census estimates that about 134 living Americans carry the surname Delcol. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Delcol?
Delcol ranks #144,270 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 117 people with the surname Delcol. That is different from the site's living-bearer estimate (134), 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 Delcol.
Has Delcol become more or less common over time?
Between 2010 and 2020, the surname Delcol went from 110 recorded bearers to 117. That is an increase of 7 (+6.4%). In the national ranking it rose from #149,395 to #144,270.
What does the Census say about the background of Delcol?
Among Census respondents with the surname Delcol, the largest self-reported group is White at 95.7%. The next largest groups are Two or More Races (3.4%) and Hispanic (0.9%). 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 Delcol in the 2020 Census, accounting for 95.7% (112 people in the source table).
What is the full ancestry breakdown?
Delcol appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.7%), Two or More Races (3.4%), Hispanic (0.9%). 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 Delcol (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 Delcol mean?
A surname possibly derived from French meaning "of the neck" or "from the hills". 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 Delcol (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 have the last name Delcol?
Want to know how many people are called Delcol? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.