2000
#146,011
National surname rank
First available Census row
A surname derived from a medieval English place name.
According to the 2020 US Census Bureau surname tables, roughly 127 Americans carry the last name Madix. That puts it at #148,665 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,698,853 residents).
This page is the full Name Census profile for the Madix 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
127
1 in 2,698,853
Census rank
#148,665
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
111
very rare in the US
Popularity narrative
The Census Bureau recorded 111 bearers of the surname Madix in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 148665th position in the national surname ranking.
Among Census respondents with the surname Madix, the largest self-reported group is White at 78.4%. The next largest groups are Hispanic (9.9%) and Black (5.4%).
Origin
The surname Madix is believed to have originated in the region of Normandy, France, during the Middle Ages. It is likely derived from the Old French word "mader," which means "to be damp or moist." This suggests that the name may have initially been given as a descriptive surname to someone who lived near a body of water or in a marshy area.
One of the earliest recorded instances of the name Madix can be found in the Domesday Book, a comprehensive survey of landholdings in England commissioned by William the Conqueror in 1086. The entry records a landowner named Radulfus de Madix in the county of Norfolk.
In the 12th century, a nobleman named Sir William Madix was recorded as serving under King Richard I during the Third Crusade. He is believed to have participated in the siege of Acre in 1191.
During the 13th century, the name Madix appeared in various spellings, such as Maddix, Maddyx, and Madyks, in various parish records and land deeds across England. One notable individual from this time was John de Madyx, who was a merchant and alderman in the city of London in the late 1200s.
In the 14th century, the name Madix was associated with the village of Madingley in Cambridgeshire, England. Records from this period mention a family named Madix residing in the area, and the name is thought to have derived from the place name Madingley.
A notable figure from the 15th century was Sir Robert Madix, a knight who served under King Henry V during the Hundred Years' War. He was present at the Battle of Agincourt in 1415 and was later granted lands in Normandy for his valor.
In the 16th century, the Madix name gained prominence in Scotland, where several families bearing the name were recorded in various historical documents. One such individual was James Madix, a merchant and landowner in Aberdeen, who lived from 1520 to 1587.
As the centuries progressed, the Madix surname continued to be found in various regions of England, Scotland, and parts of Europe, with individuals from different walks of life bearing the name, including clergymen, soldiers, and tradesmen.
Demographics
Among Census respondents with the surname Madix, the largest self-reported group is White at 78.4%. The next largest groups are Hispanic (9.9%) and Black (5.4%).
The bar chart below shows how Madix 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 Madix surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Madix 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
-2 bearers (-1.9%)
2020
National surname rank
+9 bearers (+8.8%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #146,011 | 104 | 0.04 | First available Census row | First available Census row |
| 2010 | #158,432 | 102 | 0.03 | -2 bearers (-1.9%) | Down 12,421 places |
| 2020 | #148,665 | 111 | 0.04 | +9 bearers (+8.8%) | Up 9,767 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 Madix 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 | #158,432 | #148,665 | 6.2% |
| Count | 102 | 111 | 8.8% |
| Per 100K | 0.03 | 0.04 | 23.8% |
Between the 2010 and 2020 Census, the number of Madix bearers went from 102 to 111 (+8.8% change). The surname moved up 9,767 positions in the national ranking, going from #158,432 to #148,665.
FAQ
Name Census estimates that about 127 living Americans carry the surname Madix. Using the current population baseline, that works out to roughly 1 in 2,698,853 residents.
Madix ranks #148,665 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 111 people with the surname Madix. That is different from the site's living-bearer estimate (127), 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 Madix.
Between 2010 and 2020, the surname Madix went from 102 recorded bearers to 111. That is an increase of 9 (+8.8%). In the national ranking it rose from #158,432 to #148,665.
Among Census respondents with the surname Madix, the largest self-reported group is White at 78.4%. The next largest groups are Hispanic (9.9%) and Black (5.4%). 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 Madix in the 2020 Census, accounting for 78.4% (87 people in the source table).
Madix appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (78.4%), Hispanic (9.9%), Black (5.4%). 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 Madix (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 derived from a medieval English place name. 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 Madix (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.
For a quick modern take, check how common the surname Madix is on our sister site HowManyOfMe.org.