2000
#299
National surname rank
First available Census row
A Spanish occupational surname referring to a person who lived or worked near a crossroads or intersection.
According to the 2020 US Census Bureau surname tables, roughly 143,795 Americans carry the last name Contreras. That puts it at #239 in the national surname ranking, appearing at a frequency of 41.95 per 100,000 people (about 1 in 2,384 residents).
This page is the full Name Census profile for the Contreras 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.
For British records, Name Census UK has a British surname profile for Contreras with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
144K
1 in 2,384
Census rank
#239
2020 decennial data
Per 100,000
42.0
Frequency rate
Recorded bearers
125K
common in the US
Popularity narrative
The Census Bureau recorded 125,396 bearers of the surname Contreras in its 2020 decennial surname file. At a rate of 41.95 per 100,000 residents, it holds the 239th position in the national surname ranking.
Among Census respondents with the surname Contreras, the largest self-reported group is Hispanic at 93.8%. The next largest groups are White (4.6%) and Asian/Pacific Islander (0.7%).
Origin
The surname Contreras originated in Spain during the Middle Ages. It is derived from the Spanish word "contrera," which means "an encounter" or "a confrontation." This suggests that the name may have been given to someone who lived near a place where a significant historical event or battle occurred.
One of the earliest recorded instances of the surname Contreras can be found in the Repartimiento de Sevilla, a document from the 13th century that recorded the distribution of land and properties among the conquistadors who participated in the conquest of Seville in 1248. This indicates that the name was already in use by that time.
In the 15th century, the Contreras family played a significant role in the conquest of the Canary Islands. Juan de Contreras, born around 1430, was a Spanish conquistador who participated in the conquest of Gran Canaria and Tenerife. He is known for his role in the Battle of Acentejo in 1494, where he fought against the indigenous Guanches.
Another notable figure with the surname Contreras is Hernando de Contreras, a Spanish conquistador who was born in Segovia in the late 15th century. He accompanied Hernán Cortés in the conquest of Mexico and participated in the siege of Tenochtitlan in 1521.
In the 16th century, Francisco de Contreras was a Spanish military officer and explorer who served as the governor of Chile from 1629 to 1630. He was born in Segovia around 1585 and played a crucial role in the Spanish colonization of South America.
During the 17th century, Juan Contreras y Ayala, born around 1610 in Spain, was a renowned poet and playwright. He is best known for his works "El Caballero de Olmedo" and "La Mejor Espigadera."
The surname Contreras has been found in various historical records, including the Libro de Repartimiento de Jerez de la Frontera from the 13th century, where it appears as "Contreras." This suggests that the name has maintained its original spelling throughout the centuries.
Demographics
Among Census respondents with the surname Contreras, the largest self-reported group is Hispanic at 93.8%. The next largest groups are White (4.6%) and Asian/Pacific Islander (0.7%).
The bar chart below shows how Contreras 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 Contreras surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Contreras 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
+37,504 bearers (+40.5%)
2020
National surname rank
-4,768 bearers (-3.7%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #299 | 92,660 | 34.35 | First available Census row | First available Census row |
| 2010 | #229 | 130,164 | 44.13 | +37,504 bearers (+40.5%) | Up 70 places |
| 2020 | #239 | 125,396 | 41.95 | -4,768 bearers (-3.7%) | Down 10 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 Contreras 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 | #229 | #239 | -4.4% |
| Count | 130,164 | 125,396 | -3.7% |
| Per 100K | 44.13 | 41.95 | -4.9% |
Between the 2010 and 2020 Census, the number of Contreras bearers went from 130,164 to 125,396 (-3.7% change). The surname moved down 10 positions in the national ranking, going from #229 to #239.
Notable bearers
FAQ
Name Census estimates that about 143,795 living Americans carry the surname Contreras. Using the current population baseline, that works out to roughly 1 in 2,384 residents.
Contreras ranks #239 in the 2020 Census surname tables and is classified on this site as "Common." The Census recorded the name at a frequency of 41.95 per 100,000 residents, which is about 42 people out of every 100,000.
The raw 2020 Census file counted 125,396 people with the surname Contreras. That is different from the site's living-bearer estimate (143,795), 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 41.95 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 42 of them to have the surname Contreras.
Between 2010 and 2020, the surname Contreras went from 130,164 recorded bearers to 125,396. That is a decrease of 4,768 (-3.7%). In the national ranking it fell from #229 to #239.
Among Census respondents with the surname Contreras, the largest self-reported group is Hispanic at 93.8%. The next largest groups are White (4.6%) and Asian/Pacific Islander (0.7%). 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 Contreras in the 2020 Census, accounting for 93.8% (117,619 people in the source table).
Contreras appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (93.8%), White (4.6%), Asian/Pacific Islander (0.7%). 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 Contreras (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 Spanish occupational surname referring to a person who lived or worked near a crossroads or intersection. 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 Contreras (41.95 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
If you just want to know how many Americans have the surname Contreras, HowManyOfMe.org gives you the headline number in one glance.