2000
#5,430
National surname rank
Recorded bearers 5,898
First available Census row
Per 100,000 2.19
Rare Last name
Casarez
A Spanish habitational surname indicating one who came from any of various places called Casares.
According to the 2020 US Census Bureau surname tables, roughly 7,563 Americans carry the last name Casarez. That puts it at #5,130 in the national surname ranking, appearing at a frequency of 2.21 per 100,000 people (about 1 in 45,320 residents).
This page is the full Name Census profile for the Casarez 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
7.6K
1 in 45,320
Census rank
#5,130
2020 decennial data
Per 100,000
2.2
Frequency rate
Recorded bearers
6.6K
rare in the US
Popularity narrative
The Census Bureau recorded 6,595 bearers of the surname Casarez in its 2020 decennial surname file. At a rate of 2.21 per 100,000 residents, it holds the 5130th position in the national surname ranking.
Among Census respondents with the surname Casarez, the largest self-reported group is Hispanic at 89.8%. The next largest groups are White (8.6%) and American Indian/Alaska Native (0.6%).
Origin
Meaning and origin of Casarez
The surname Casarez is of Spanish origin, tracing its roots back to the Iberian Peninsula during the Middle Ages. It is believed to have derived from the Spanish word "casar," meaning "to marry" or "to settle," indicating a connection to a person's marital status or a place where people had settled.
The earliest known records of the name Casarez can be found in historical documents from the 14th and 15th centuries in regions such as Castile and Aragon. These records often referred to individuals who had established families or settled in particular areas, leading to the formation of the surname Casarez.
During the 16th and 17th centuries, the Casarez surname began to spread beyond Spain as the Spanish Empire expanded into the Americas. Many Casarez families accompanied explorers and colonizers, establishing themselves in various parts of the New World, particularly in regions like Mexico and the southwestern United States.
Notable individuals with the surname Casarez include Juan Casarez, a prominent landowner and rancher in the Mexican state of Nuevo León during the late 18th century. Another significant figure was María Casarez, a respected educator and community leader in San Antonio, Texas, in the mid-19th century.
In the 20th century, one of the most well-known individuals with the Casarez surname was Emilio Casarez, a Mexican-American civil rights activist and labor leader who fought for the rights of farm workers and migrant laborers in the United States. He was born in 1908 and played a pivotal role in the struggles for social justice and fair working conditions.
Another notable Casarez was Enrique Casarez, a Mexican painter and muralist who lived from 1909 to 1991. His works, inspired by the Mexican muralist movement, adorned public buildings and captured the vibrant cultural heritage of his country.
The Casarez surname has also been associated with various place names throughout Spain and Latin America, such as Casares, a town in the province of Málaga, Spain, and Casarez, a small community in the Mexican state of Coahuila.
While the exact origin and meaning of the Casarez surname may have evolved over time, it remains deeply rooted in the rich cultural heritage of Spain and the Spanish-speaking world, carrying the legacy of settlement, family, and a strong connection to the lands where its bearers have lived and thrived.
Demographics
Ancestry and ethnicity for Casarez
Among Census respondents with the surname Casarez, the largest self-reported group is Hispanic at 89.8%. The next largest groups are White (8.6%) and American Indian/Alaska Native (0.6%).
The bar chart below shows how Casarez 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 Casarez surname at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino89.8% · 5,922
- White8.6% · 564
- American Indian and Alaska Native0.6% · 40
- Two or more races0.5% · 31
- Asian and Pacific Islander0.3% · 20
- Black or African American0.3% · 18
Timeline
Historical Census data for Casarez
Casarez 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
#4,927
National surname rank
Recorded bearers 7,140
+1,242 bearers (+21.1%)
Per 100,000 2.42
Rank movement Up 503 places
2020
#5,130
National surname rank
Recorded bearers 6,595
-545 bearers (-7.6%)
Per 100,000 2.21
Rank movement Down 203 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #5,430 | 5,898 | 2.19 | First available Census row | First available Census row |
| 2010 | #4,927 | 7,140 | 2.42 | +1,242 bearers (+21.1%) | Up 503 places |
| 2020 | #5,130 | 6,595 | 2.21 | -545 bearers (-7.6%) | Down 203 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 Casarez 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 | #4,927 | #5,130 | -4.1% |
| Count | 7,140 | 6,595 | -7.6% |
| Per 100K | 2.42 | 2.21 | -8.8% |
Between the 2010 and 2020 Census, the number of Casarez bearers went from 7,140 to 6,595 (-7.6% change). The surname moved down 203 positions in the national ranking, going from #4,927 to #5,130.
FAQ
Casarez surname: questions and answers
How many people in the U.S. have the surname Casarez?
Name Census estimates that about 7,563 living Americans carry the surname Casarez. Using the current population baseline, that works out to roughly 1 in 45,320 residents.
How common is Casarez?
Casarez ranks #5,130 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 2.21 per 100,000 residents, which is about 2 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 6,595 people with the surname Casarez. That is different from the site's living-bearer estimate (7,563), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 2.21 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 2.21 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 2 of them to have the surname Casarez.
Has Casarez become more or less common over time?
Between 2010 and 2020, the surname Casarez went from 7,140 recorded bearers to 6,595. That is a decrease of 545 (-7.6%). In the national ranking it fell from #4,927 to #5,130.
What does the Census say about the background of Casarez?
Among Census respondents with the surname Casarez, the largest self-reported group is Hispanic at 89.8%. The next largest groups are White (8.6%) and American Indian/Alaska Native (0.6%). 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?
Hispanic is the largest self-reported group for the surname Casarez in the 2020 Census, accounting for 89.8% (5,922 people in the source table).
What is the full ancestry breakdown?
Casarez appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (89.8%), White (8.6%), American Indian/Alaska Native (0.6%). 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 Casarez (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 Casarez mean?
A Spanish habitational surname indicating one who came from any of various places called Casares. 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 Casarez (2.21 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 Casarez?
Our sister site HowManyOfMe.org answers how many Americans have the surname Casarez at a glance, with the living-bearer count up front.