2000
#123,314
National surname rank
First available Census row
A rare Spanish surname of uncertain origin, possibly derived from a place name.
According to the 2020 US Census Bureau surname tables, roughly 278 Americans carry the last name Wilches. That puts it at #83,650 in the national surname ranking, appearing at a frequency of 0.08 per 100,000 people (about 1 in 1,232,929 residents).
This page is the full Name Census profile for the Wilches 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
278
1 in 1,232,929
Census rank
#83,650
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
242
very rare in the US
Popularity narrative
The Census Bureau recorded 242 bearers of the surname Wilches in its 2020 decennial surname file. At a rate of 0.08 per 100,000 residents, it holds the 83650th position in the national surname ranking.
Among Census respondents with the surname Wilches, the largest self-reported group is Hispanic at 89.7%. The next largest groups are White (9.1%) and Black (1.2%).
Origin
The surname Wilches has its origins in Spain. This name is believed to be derived from the medieval Spanish period, which saw a rich mingling of cultures and languages due to the Reconquista and other historical events. The surname is primarily associated with the Northern regions of Spain, such as Galicia, where it is most commonly found. Its etymological roots trace back to the Old High German word "wilja," meaning "will" or "desire," and "helm," meaning "helmet" or "protection," denoting someone who was a keen protector or guardian.
One of the earliest references to the surname Wilches appears in the records of the 15th century. During this period, surnames were gradually becoming hereditary, and documentation reveals instances of the name in local government and church records. In the Cathedral of Santiago de Compostela, a reference to a certain Rodrigo de Wilches, a landowner, is found in the year 1467, indicating the surname's early adoption by notable families.
In historical manuscripts dating back to the 16th century, the name Wilches surfaces in various legal documents. For instance, a Juan Wilches is mentioned in a land grant dated 1592, which highlights his role as a prominent community figure in the region of Castile. Another significant bearer of the surname, María Wilches, born in 1610 and deceased in 1673, was known for her philanthropic activities, particularly her contributions to the establishment of orphanages and schools in Salamanca.
A shift in the geographical distribution of the surname occurred during the Spanish colonization of the Americas. Several members of the Wilches family were among the early settlers in the New World. Pedro Wilches, born in 1545, emigrated to present-day Colombia in 1570, where he became a key figure in the establishment of colonial administration in the region of Boyacá. His descendants played significant roles in the local governance and economy, particularly in agriculture and mining.
Historical records from the 18th century reveal the presence of Antonio Wilches, a well-known soldier and explorer born in 1723. He is celebrated for his expeditions in South America, which contributed to the mapping and exploration of the Amazon Basin. The Wilches family's influence extended into the 19th century, exemplified by José Wilches, born in 1810, who was a noted scholar and writer. His works on Spanish literature and culture were pivotal in preserving the historical narratives of his time.
In summary, the surname Wilches carries a rich history originating from medieval Spain, evolving through significant historical events and geographic expansions. Notable bearers of the name have left a lasting impact on various aspects of society, from community leadership and philanthropy to exploration and scholarship.
Demographics
Among Census respondents with the surname Wilches, the largest self-reported group is Hispanic at 89.7%. The next largest groups are White (9.1%) and Black (1.2%).
The bar chart below shows how Wilches 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 Wilches surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Wilches 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.
2000
National surname rank
First available Census row
2010
National surname rank
+60 bearers (+46.5%)
2020
National surname rank
+53 bearers (+28.0%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #123,314 | 129 | 0.05 | First available Census row | First available Census row |
| 2010 | #96,368 | 189 | 0.06 | +60 bearers (+46.5%) | Up 26,946 places |
| 2020 | #83,650 | 242 | 0.08 | +53 bearers (+28.0%) | Up 12,718 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
How has the Wilches surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #96,368 | #83,650 | 13.2% |
| Count | 189 | 242 | 28.0% |
| Per 100K | 0.06 | 0.08 | 34.9% |
Between the 2010 and 2020 Census, the number of Wilches bearers went from 189 to 242 (+28.0% change). The surname moved up 12,718 positions in the national ranking, going from #96,368 to #83,650.
FAQ
Name Census estimates that about 278 living Americans carry the surname Wilches. Using the current population baseline, that works out to roughly 1 in 1,232,929 residents.
Wilches ranks #83,650 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.08 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 242 people with the surname Wilches. That is different from the site's living-bearer estimate (278), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
It is the Census Bureau's normalized frequency measure. A rate of 0.08 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 Wilches.
Between 2010 and 2020, the surname Wilches went from 189 recorded bearers to 242. That is an increase of 53 (+28.0%). In the national ranking it rose from #96,368 to #83,650.
Among Census respondents with the surname Wilches, the largest self-reported group is Hispanic at 89.7%. The next largest groups are White (9.1%) and Black (1.2%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Hispanic is the largest self-reported group for the surname Wilches in the 2020 Census, accounting for 89.7% (217 people in the source table).
Wilches appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (89.7%), White (9.1%), Black (1.2%). 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.
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 Wilches (2000, 2010, 2020).
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.
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.
A rare Spanish surname of uncertain origin, possibly derived from a place name. The fuller origin note on this page goes into more detail.
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.
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 Wilches (0.08 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
See how many people have the last name Wilches on HowManyOfMe.org, our sister site built around that single question.