2000
#134,037
National surname rank
First available Census row
A surname of Basque origin referring to someone living in a wooded area or by a grove.
According to the 2020 US Census Bureau surname tables, roughly 136 Americans carry the last name Madro. That puts it at #142,788 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,520,252 residents).
This page is the full Name Census profile for the Madro 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
136
1 in 2,520,252
Census rank
#142,788
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
119
very rare in the US
Popularity narrative
The Census Bureau recorded 119 bearers of the surname Madro in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142788th position in the national surname ranking.
Among Census respondents with the surname Madro, the largest self-reported group is White at 92.4%. The next largest groups are Black (1.7%) and Hispanic (1.7%).
Origin
The surname MADRO has its origins in Spain, dating back to the medieval era. It is believed to have originated from the Spanish word "madre," meaning "mother," which may have been used as a nickname or descriptive term for someone associated with motherly qualities or perhaps a midwife.
One of the earliest recorded instances of the name can be found in the Cartulario de Santo Toribio de Liébana, a medieval manuscript from the 11th century, which mentions a certain Domingo Madro among the landowners in the region of Cantabria.
During the 13th century, the name appears in various records from the Kingdom of Castile, such as the Becerro de las Behetrías, a medieval census document that listed landowners and their properties. One notable entry is Juan Madro, a landowner in the village of Villasur de Herreros.
In the 15th century, a branch of the Madro family settled in the town of Almagro, in the province of Ciudad Real. This is evidenced by the presence of the Madro surname in the town's municipal records from that period.
Notable individuals with the surname MADRO include:
1. Alonso Madro (c. 1520 - 1585), a Spanish conquistador and explorer who participated in the conquest of Peru alongside Francisco Pizarro.
2. Juana Madro (c. 1570 - 1640), a renowned Spanish painter from the Baroque period, known for her religious works and portraits.
3. Pedro Madro y Villavicencio (1610 - 1683), a Spanish nobleman and military commander who served as the Governor of Havana, Cuba, in the 17th century.
4. Ignacio Madro Fernández (1745 - 1810), a Spanish priest and theologian who authored several influential works on Catholic doctrine and ethics.
5. María Madro Antón (1825 - 1892), a Spanish educator and writer, considered a pioneer in the promotion of women's education in Spain during the 19th century.
The surname MADRO has also been associated with various place names in Spain, such as the village of Madroñera in the province of Toledo, which may have derived its name from the Spanish word "madroño," meaning strawberry tree, indicating a potential connection with the MADRO surname.
Demographics
Among Census respondents with the surname Madro, the largest self-reported group is White at 92.4%. The next largest groups are Black (1.7%) and Hispanic (1.7%).
The bar chart below shows how Madro 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 Madro surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Madro 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
-4 bearers (-3.4%)
2020
National surname rank
+7 bearers (+6.3%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,037 | 116 | 0.04 | First available Census row | First available Census row |
| 2010 | #147,253 | 112 | 0.04 | -4 bearers (-3.4%) | Down 13,216 places |
| 2020 | #142,788 | 119 | 0.04 | +7 bearers (+6.3%) | Up 4,465 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 Madro 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 | #147,253 | #142,788 | 3.0% |
| Count | 112 | 119 | 6.3% |
| Per 100K | 0.04 | 0.04 | -0.5% |
Between the 2010 and 2020 Census, the number of Madro bearers went from 112 to 119 (+6.3% change). The surname moved up 4,465 positions in the national ranking, going from #147,253 to #142,788.
FAQ
Name Census estimates that about 136 living Americans carry the surname Madro. Using the current population baseline, that works out to roughly 1 in 2,520,252 residents.
Madro ranks #142,788 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 119 people with the surname Madro. That is different from the site's living-bearer estimate (136), 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 0.04 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 0 of them to have the surname Madro.
Between 2010 and 2020, the surname Madro went from 112 recorded bearers to 119. That is an increase of 7 (+6.3%). In the national ranking it rose from #147,253 to #142,788.
Among Census respondents with the surname Madro, the largest self-reported group is White at 92.4%. The next largest groups are Black (1.7%) and Hispanic (1.7%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
White is the largest self-reported group for the surname Madro in the 2020 Census, accounting for 92.4% (110 people in the source table).
Madro appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.4%), Black (1.7%), Hispanic (1.7%). 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 Madro (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 surname of Basque origin referring to someone living in a wooded area or by a grove. 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 Madro (0.04 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
You can see how many people have the surname Madro on our sister site HowManyOfMe.org — same data roots, lighter UI.