Castrejon

surname · Latin script

Recorded for both men and women· direction only, no split published

/kastɾexon/(machine-generated) pronunciation, model-generated

Castrejon is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • PEPeru≈1 in 6.1K(inferred from the name graph)
  • USUnited States1 in 54K
  • ESSpain1 in 58K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

6,180 people, 2010

Sources
227 (measured from records)

Highest-authority source

≈1 in 6.1K (inferred from the name graph)

Peru, est.

measured from records inferred from the name graph

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Attested across 9 languages in the etymology graph.

Where in the world(measured from records)

Castrejon counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.

Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.

Where Castrejon is recorded, by country
CountryMost common spellingSources
US United States—6,1801 in 54K6.2KCastrejon227
PE Peru#799≈5,200 est.≈1 in 6.1K—Castrejon47
ES Spain—8551 in 58K855Castrejon68
CA Canada—≈380 est.≈1 in 100K—Castrejon19
CO Colombia—≈320 est.≈1 in 155K—Castrejon12
PA Panama#603≈140 est.≈1 in 28K5Castrejon20
SV El Salvador—≈100 est.≈1 in 64K—Castrejon3
MX Mexico#596——803Castrejon148

6,180 people counted by Census Bureau — Surname Frequency 2010, 2010. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.

Registers cited: RENAPO — name frequencies (eduardofv dataset); Census Bureau — Surname Frequency 2010; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Tribunal Electoral — Boletín, postulaciones for the 5 May 2024 general election. Figures without a register are Mondonomo estimates; see Methodology.

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).

Other names spelled this way(inferred from the name graph)

Castrejon is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname6 spellings in the group

    Most recorded in United States, Peru, Canada, United Kingdom

    Languages: English, German, Dutch

    Also written Castrejón, Castrejòn

  • a separate name2 spellings in the group

    Also written Castrejón

  • French surname4 spellings in the group

    Most recorded in United States, France, Peru, Canada

    Also written Castrejón

  • Swahili surname2 spellings in the group

    Most recorded in United States, Peru

    Also written Castrejón

  • Hindi surname3 spellings in the group

    Most recorded in United States, India, Peru

    Languages: Hindi, Urdu

    Also written Castrejón

  • Italian surname2 spellings in the group

    Most recorded in United States, Italy, Peru, Spain

    Also written Castrejón

  • Arabic surname2 spellings in the group

    Most recorded in United States, Tunisia, Spain, Peru

    Also written Castrejón

34 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Notable people with this name(measured from records)

16001700180019002000Antonio Castrejon, b. 1634Sara Castrejón, b. 1888Mariand Castrejón, b. 1993

The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).

How to address them(machine-generated)

FormalEstimado/a Castrejon,Dear Castrejon, (English)
InformalEstimado/a Castrejon,Hello, (English)

Evidence(measured from records)

Attested in 14 sources across 8 countries.

Official registers attesting Castrejon
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 201020106.2K#5,624
US United StatesCensus Bureau — Surname Frequency 202020205.7K#5,858
US United StatesCensus Bureau — Surname Frequency 200020003.9K#7,826
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—855#5,091
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—855#5,086
MX MexicoRENAPO — name frequencies (eduardofv dataset)—803#426
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 1

  • Wikidata name items (native-script + romanized given/family names)

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

How do you pronounce Castrejon?
A machine transcription gives /kastɾexon/ (IPA) for Spanish.
In which country does Castrejon have the most bearers?
In the United States, the national register counted about 6.2 thousand people named Castrejon, more than in any other country we hold, where it is most often spelled castrejon.
How common is the name Castrejon?
In the United States, the national register counted 6,180 people named Castrejon in 2010, about 1 in 54 thousand residents.
How common is Castrejon compared with other names?
In Mexico, Castrejon is the 596th most common surname of 206,803 surnames recorded there.

What do you want to know about Castrejon?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/castrejon

The payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.

About this data

measured from records inferred from the name graph machine-generated

These figures come from the data snapshot of and will change as it is rebuilt.

Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.

Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.

Cite this page Mondonomo, “Castrejon” — the 596th most common surname in Mexico. Data snapshot 2026-10-10.

See how Castrejon parses inside a full name →