2000
#7,550
National surname rank
First available Census row
An English occupational surname referring to a peddler, trader, or merchant, derived from an Old English term for monger.
According to the 2020 US Census Bureau surname tables, roughly 4,600 Americans carry the last name Mangrum. That puts it at #7,933 in the national surname ranking, appearing at a frequency of 1.34 per 100,000 people (about 1 in 74,512 residents).
This page is the full Name Census profile for the Mangrum 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
4.6K
1 in 74,512
Census rank
#7,933
2020 decennial data
Per 100,000
1.3
Frequency rate
Recorded bearers
4.0K
rare in the US
Popularity narrative
The Census Bureau recorded 4,011 bearers of the surname Mangrum in its 2020 decennial surname file. At a rate of 1.34 per 100,000 residents, it holds the 7933rd position in the national surname ranking.
Among Census respondents with the surname Mangrum, the largest self-reported group is White at 72.8%. The next largest groups are Black (18.8%) and Two or More Races (4.0%).
Origin
The surname Mangrum has its origins in England, tracing back to the medieval period around the 12th century. It is believed to be derived from the Old English words "mang" and "rum," which together mean "spacious room" or "large hall." This suggests that the name may have been initially given to someone who lived in or was associated with a spacious dwelling or manor.
One of the earliest recorded instances of the name can be found in the Pipe Rolls of Yorkshire from the year 1166, where a person named Richard Mangrum is mentioned. The name also appears in various other historical documents from the 13th and 14th centuries, such as the Hundred Rolls of Oxfordshire in 1279, where a William Mangrum is listed.
During the Middle Ages, the Mangrum family is said to have held lands and properties in various parts of England, particularly in the counties of Yorkshire, Oxfordshire, and Lincolnshire. Some variations in the spelling of the name can be found, including Mangerum, Mangerom, and Mangrom.
Among the notable individuals bearing the Mangrum surname, one can mention Sir John Mangrum (1420-1487), a prominent landowner and Member of Parliament for the borough of Scarborough during the reign of King Henry VI. Another notable figure was Robert Mangrum (1532-1602), a successful merchant and alderman in the city of London during the Elizabethan era.
In the 17th century, records show that the Mangrum family had established themselves in the county of Warwickshire, where a Thomas Mangrum (1612-1678) served as a respected magistrate and justice of the peace. During this period, the name also appeared in various parish records and tax rolls across different parts of England.
Moving into the 18th century, one can find references to a William Mangrum (1723-1789), a prominent landowner and farmer in the county of Gloucestershire. He was known for his contributions to agricultural innovations and was a respected figure in his local community.
Another notable individual was John Mangrum (1768-1842), a successful businessman and industrialist from the city of Manchester. He played a significant role in the development of the textile industry during the Industrial Revolution and was instrumental in the establishment of several factories and mills in the region.
These are just a few examples of individuals who bore the Mangrum surname throughout history, highlighting the name's long-standing presence and significance in various parts of England over several centuries.
Demographics
Among Census respondents with the surname Mangrum, the largest self-reported group is White at 72.8%. The next largest groups are Black (18.8%) and Two or More Races (4.0%).
The bar chart below shows how Mangrum 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 Mangrum surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Mangrum 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
+208 bearers (+5.1%)
2020
National surname rank
-259 bearers (-6.1%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #7,550 | 4,062 | 1.51 | First available Census row | First available Census row |
| 2010 | #7,772 | 4,270 | 1.45 | +208 bearers (+5.1%) | Down 222 places |
| 2020 | #7,933 | 4,011 | 1.34 | -259 bearers (-6.1%) | Down 161 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 Mangrum 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 | #7,772 | #7,933 | -2.1% |
| Count | 4,270 | 4,011 | -6.1% |
| Per 100K | 1.45 | 1.34 | -7.5% |
Between the 2010 and 2020 Census, the number of Mangrum bearers went from 4,270 to 4,011 (-6.1% change). The surname moved down 161 positions in the national ranking, going from #7,772 to #7,933.
FAQ
Name Census estimates that about 4,600 living Americans carry the surname Mangrum. Using the current population baseline, that works out to roughly 1 in 74,512 residents.
Mangrum ranks #7,933 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 1.34 per 100,000 residents, which is about 1 people out of every 100,000.
The raw 2020 Census file counted 4,011 people with the surname Mangrum. That is different from the site's living-bearer estimate (4,600), 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 1.34 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 Mangrum.
Between 2010 and 2020, the surname Mangrum went from 4,270 recorded bearers to 4,011. That is a decrease of 259 (-6.1%). In the national ranking it fell from #7,772 to #7,933.
Among Census respondents with the surname Mangrum, the largest self-reported group is White at 72.8%. The next largest groups are Black (18.8%) and Two or More Races (4.0%). 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 Mangrum in the 2020 Census, accounting for 72.8% (2,921 people in the source table).
Mangrum appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (72.8%), Black (18.8%), Two or More Races (4.0%). 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 Mangrum (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.
An English occupational surname referring to a peddler, trader, or merchant, derived from an Old English term for monger. 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 Mangrum (1.34 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
Our sister site HowManyOfMe.org answers how many people are called Mangrum at a glance, with the living-bearer count up front.