2000
#22,521
National surname rank
First available Census row
A Spanish surname derived from the Latin words "mel" (honey) and "grex" (flock), likely referring to a beekeeper or honey merchant.
According to the 2020 US Census Bureau surname tables, roughly 2,069 Americans carry the last name Melgarejo. That puts it at #15,592 in the national surname ranking, appearing at a frequency of 0.60 per 100,000 people (about 1 in 165,662 residents).
This page is the full Name Census profile for the Melgarejo 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
2.1K
1 in 165,662
Census rank
#15,592
2020 decennial data
Per 100,000
0.6
Frequency rate
Recorded bearers
1.8K
rare in the US
Popularity narrative
The Census Bureau recorded 1,804 bearers of the surname Melgarejo in its 2020 decennial surname file. At a rate of 0.60 per 100,000 residents, it holds the 15592nd position in the national surname ranking.
Among Census respondents with the surname Melgarejo, the largest self-reported group is Hispanic at 91.5%. The next largest groups are Asian/Pacific Islander (4.5%) and White (3.4%).
Origin
The surname MELGAREJO originated in Spain and is of Spanish origin. It is derived from the words "melga" meaning a strip of cultivated land and "rejo" meaning a plough, indicating the name's connection to agriculture and rural life. The earliest recorded instances of the surname date back to the 15th century.
Records show that in 1492, a Diego MELGAREJO was among the conquistadors who accompanied Christopher Columbus on his voyage to the Americas. The name is also found in the Catalonian region of Spain, where it was spelled MELGAREGIO in some old manuscripts.
During the 16th century, the MELGAREJO family established themselves as landowners and farmers in the region of Extremadura, Spain. One notable figure was Juan MELGAREJO (1523-1588), who was a prominent agriculturist and inventor of an early prototype of the plow.
In the 17th century, the name spread to the Spanish colonies in the Americas. Miguel MELGAREJO (1634-1693) was a soldier and explorer who participated in the conquest of Chile and founded the settlement of Melgarejo, now known as San Miguel de Tucumán, Argentina.
Another significant figure was Mariano MELGAREJO (1820-1871), who served as the 16th President of Bolivia from 1864 to 1871. He was a controversial figure known for his ruthless rule and violent suppression of opposition.
In the 19th century, a branch of the MELGAREJO family migrated to Mexico, where they continued to be involved in agriculture and landholding. José MELGAREJO (1845-1914) was a prominent landowner and businessman in the state of Jalisco.
Throughout history, the surname MELGAREJO has been associated with farming, land ownership, and occasionally military and political roles, reflecting its roots in rural Spain and the contributions of various individuals bearing this name.
Demographics
Among Census respondents with the surname Melgarejo, the largest self-reported group is Hispanic at 91.5%. The next largest groups are Asian/Pacific Islander (4.5%) and White (3.4%).
The bar chart below shows how Melgarejo 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 Melgarejo surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Melgarejo 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
+756 bearers (+70.9%)
2020
National surname rank
-18 bearers (-1.0%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #22,521 | 1,066 | 0.40 | First available Census row | First available Census row |
| 2010 | #15,947 | 1,822 | 0.62 | +756 bearers (+70.9%) | Up 6,574 places |
| 2020 | #15,592 | 1,804 | 0.60 | -18 bearers (-1.0%) | Up 355 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 Melgarejo 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 | #15,947 | #15,592 | 2.2% |
| Count | 1,822 | 1,804 | -1.0% |
| Per 100K | 0.62 | 0.60 | -2.7% |
Between the 2010 and 2020 Census, the number of Melgarejo bearers went from 1,822 to 1,804 (-1.0% change). The surname moved up 355 positions in the national ranking, going from #15,947 to #15,592.
FAQ
Name Census estimates that about 2,069 living Americans carry the surname Melgarejo. Using the current population baseline, that works out to roughly 1 in 165,662 residents.
Melgarejo ranks #15,592 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.60 per 100,000 residents, which is about 1 people out of every 100,000.
The raw 2020 Census file counted 1,804 people with the surname Melgarejo. That is different from the site's living-bearer estimate (2,069), 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 0.60 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Melgarejo.
Between 2010 and 2020, the surname Melgarejo went from 1,822 recorded bearers to 1,804. That is a decrease of 18 (-1.0%). In the national ranking it rose from #15,947 to #15,592.
Among Census respondents with the surname Melgarejo, the largest self-reported group is Hispanic at 91.5%. The next largest groups are Asian/Pacific Islander (4.5%) and White (3.4%). 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 Melgarejo in the 2020 Census, accounting for 91.5% (1,651 people in the source table).
Melgarejo appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Hispanic (91.5%), Asian/Pacific Islander (4.5%), White (3.4%). 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 Melgarejo (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 surname derived from the Latin words "mel" (honey) and "grex" (flock), likely referring to a beekeeper or honey merchant. 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 Melgarejo (0.60 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.