2000
#125,639
National surname rank
First available Census row
Hungarian surname meaning son of Master.
According to the 2020 US Census Bureau surname tables, roughly 123 Americans carry the last name Moson. That puts it at #151,639 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,786,621 residents).
This page is the full Name Census profile for the Moson 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.
For British records, Name Census UK has a British surname profile for Moson with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
123
1 in 2,786,621
Census rank
#151,639
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
107
very rare in the US
Popularity narrative
The Census Bureau recorded 107 bearers of the surname Moson in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 151639th position in the national surname ranking.
Among Census respondents with the surname Moson, the largest self-reported group is White at 95.3%. The next largest groups are Hispanic (2.8%) and Two or More Races (1.9%).
Origin
The surname "MOSON" is believed to have originated in the English county of Leicestershire, dating back to the 13th century. It is thought to have derived from the Old English word "mos," meaning "moss," and the suffix "-tun," meaning "town" or "settlement." This suggests that the name may have referred to someone who resided in a mossy town or village.
One of the earliest recorded mentions of the name "MOSON" can be found in the Pipe Rolls of Leicestershire from 1275, where a person named Robert Moson is listed as a taxpayer. Additionally, the name appears in the Subsidy Rolls of Rutland in 1327, indicating its presence in the neighboring county.
In the 14th century, the surname "MOSON" appeared in various spellings, such as "Mosoun" and "Mossoun," reflecting the diverse pronunciation and spelling variations of the time. One notable figure from this era was John Mosoun, a merchant from Nottingham, who was mentioned in the Nottinghamshire Borough Records in 1369.
During the 15th century, the surname "MOSON" continued to be recorded in various regions of England. In 1456, a man named Thomas Moson was listed in the Register of the Freemen of the City of York, indicating the spread of the name beyond the East Midlands.
Fast forward to the 16th century, and we find William Moson, a scholar and clergyman born in Leicestershire in 1509. He was educated at Cambridge University and served as the Archdeacon of Stow from 1566 until his death in 1579.
Another notable figure from this period was Richard Moson, born in Nottinghamshire in 1540. He was a prominent lawyer and served as the Recorder of Lincoln from 1585 until his death in 1610.
In the 17th century, the surname "MOSON" continued to be documented in various parts of England. One example is John Moson, born in Derbyshire in 1623, who was a successful merchant and philanthropist. He donated funds for the construction of a school in his hometown.
Throughout the 18th and 19th centuries, the surname "MOSON" remained present in various regions of England, although fewer notable individuals with this name have been recorded during this time period. However, the name's longevity and persistence suggest a rich history and heritage spanning several centuries.
Demographics
Among Census respondents with the surname Moson, the largest self-reported group is White at 95.3%. The next largest groups are Hispanic (2.8%) and Two or More Races (1.9%).
The bar chart below shows how Moson 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 Moson surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Moson 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
-26 bearers (-20.6%)
2020
National surname rank
+7 bearers (+7.0%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #125,639 | 126 | 0.05 | First available Census row | First available Census row |
| 2010 | #160,975 | 100 | 0.03 | -26 bearers (-20.6%) | Down 35,336 places |
| 2020 | #151,639 | 107 | 0.04 | +7 bearers (+7.0%) | Up 9,336 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 Moson 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 | #160,975 | #151,639 | 5.8% |
| Count | 100 | 107 | 7.0% |
| Per 100K | 0.03 | 0.04 | 19.3% |
Between the 2010 and 2020 Census, the number of Moson bearers went from 100 to 107 (+7.0% change). The surname moved up 9,336 positions in the national ranking, going from #160,975 to #151,639.
FAQ
Name Census estimates that about 123 living Americans carry the surname Moson. Using the current population baseline, that works out to roughly 1 in 2,786,621 residents.
Moson ranks #151,639 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 107 people with the surname Moson. That is different from the site's living-bearer estimate (123), 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 Moson.
Between 2010 and 2020, the surname Moson went from 100 recorded bearers to 107. That is an increase of 7 (+7.0%). In the national ranking it rose from #160,975 to #151,639.
Among Census respondents with the surname Moson, the largest self-reported group is White at 95.3%. The next largest groups are Hispanic (2.8%) and Two or More Races (1.9%). 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 Moson in the 2020 Census, accounting for 95.3% (102 people in the source table).
Moson appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.3%), Hispanic (2.8%), Two or More Races (1.9%). 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 Moson (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.
Hungarian surname meaning son of Master. 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 Moson (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 faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.