Find out how popular the last name Alonzo is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Alonzo.

Alonzo, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Alonzo surname is from the 2010 census data.

Popularity of Alonzo in America

Alonzo is the 1758th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Alonzo surname appeared 20,367 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 7 people would have the surname Alonzo.

We can also compare 2010 data for Alonzo to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

The history of the last name Alonzo

The surname Alonzo has its origins in Spain, dating back to the medieval period. It is a patronymic name derived from the Spanish given name Alfonso, which itself is derived from the Germanic name Adalfuns, composed of the elements "adal" meaning "noble" and "funs" meaning "ready."

Alonzo emerged as a surname in regions such as Castile and Aragon, where it was often associated with noble families or individuals of prominence. The earliest recorded instances of the surname can be found in medieval documents and records from the 13th and 14th centuries.

One notable historical reference to the name Alonzo is in the epic poem "El Cantar de Mio Cid," which tells the story of the Spanish hero El Cid. The poem mentions a character named Alonzo Perez de Falcon, who was a loyal companion of El Cid during the Reconquista period.

Among the earliest recorded bearers of the surname Alonzo were Alonzo de Mendoza (b. 1340 - d. 1395), a Spanish nobleman and military leader who played a significant role in the Castilian Civil War, and Alonzo de Cartagena (b. 1384 - d. 1456), a renowned scholar, diplomat, and Bishop of Burgos.

Other notable individuals with the surname Alonzo include Pedro Alonzo de Hinojosa (b. 1475 - d. 1523), a Spanish explorer and conquistador who participated in the conquest of Mexico, and Alonzo de Santa Cruz (b. 1505 - d. 1567), a renowned Spanish cartographer and cosmographer who created some of the earliest detailed maps of the Americas.

The surname Alonzo also has connections to various place names in Spain, such as Alonzo de Valdés (a municipality in Asturias) and Alonzo (a village in Teruel), which may have influenced the surname's evolution and distribution.

Race and ethnic origin of people with the last name Alonzo

We also have some data on the ancestry of people with the surname Alonzo.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:

1. White only
2. Black only
3. American Indian and Alaskan Native only
4. Asian and Pacific Islander only
5. Hispanic
6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Alonzo was:

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Alonzo has changed in the 10 years between the two census surveys.

Data source

The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.

The history and meaning of the name Alonzo was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Alonzo, please contact us.

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