2010
#158,432
National surname rank
Recorded bearers 102
First available Census row
Per 100,000 0.03
Very Rare Last name
Sanphy
A variant spelling of the French habitational surname Santy, from any of several places in France.
According to the 2020 US Census Bureau surname tables, roughly 115 Americans carry the last name Sanphy. That puts it at #155,682 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,980,473 residents).
This page is the full Name Census profile for the Sanphy 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
115
1 in 2,980,473
Census rank
#155,682
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
100
very rare in the US
Popularity narrative
The Census Bureau recorded 100 bearers of the surname Sanphy in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 155682nd position in the national surname ranking.
Among Census respondents with the surname Sanphy, the largest self-reported group is White at 92.0%. The next largest groups are Hispanic (4.0%) and Two or More Races (3.0%).
Origin
Meaning and origin of Sanphy
The surname SANPHY is believed to have originated in the English county of Hertfordshire in the early 14th century. It is thought to be derived from the Old English words "sand" and "fy," which together mean "sandy ground" or "sandy territory." This suggests that the name's earliest bearers may have lived in an area with particularly sandy soil or near a sandy riverbank.
One of the earliest recorded instances of the SANPHY surname appears in the Feet of Fines records for Hertfordshire in 1327, where a John Sanphy is mentioned as a landowner. These medieval legal records documented property transfers and land disputes, providing valuable insights into the lives and locations of families from that era.
In the late 15th century, the SANPHY name can be found in the Parish Records of St. Mary's Church in the village of Shenley, Hertfordshire. Here, a Richard Sanphy is listed as having been baptized in 1487. This reinforces the theory that the SANPHY family had deep roots in this region.
By the 16th century, the SANPHY surname had spread to other parts of England. In the Subsidy Rolls of 1524 for the county of Essex, a Thomas Sanphy is recorded as a taxpayer, indicating the family's presence in that area.
One of the earliest notable individuals with the SANPHY surname was William Sanphy (1602-1678), a merchant and landowner from Ipswich, Suffolk. He is mentioned in several historical records related to his business dealings and property ownership.
In the 17th century, the SANPHY name also appeared in the New World. John Sanphy (1635-1712) was an early settler in the Massachusetts Bay Colony, arriving in 1652. He went on to become a prominent figure in the town of Andover, serving as a selectman and justice of the peace.
Another significant figure was Elizabeth Sanphy (1718-1802), a renowned author and poet from Bristol, England. Her works, including a collection of poems titled "Musings of the Heart," were widely read and appreciated during her lifetime.
As the SANPHY family continued to spread across England and beyond, variations in spelling emerged, such as Sanfy, Sanfey, and Sanfie. These alternative spellings can be found in various historical records from the 18th and 19th centuries.
Throughout history, the SANPHY surname has been carried by individuals from various walks of life, including farmers, merchants, artists, and professionals. While not a particularly widespread name, it has left its mark on the historical record in numerous locations across England and its former colonies.
Demographics
Ancestry and ethnicity for Sanphy
Among Census respondents with the surname Sanphy, the largest self-reported group is White at 92.0%. The next largest groups are Hispanic (4.0%) and Two or More Races (3.0%).
The bar chart below shows how Sanphy 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 Sanphy surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.0% · 92
- Hispanic or Latino4.0% · 4
- Two or more races3.0% · 3
- Asian and Pacific Islander1.0% · 1
Timeline
Historical Census data for Sanphy
Sanphy appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#155,682
National surname rank
Recorded bearers 100
-2 bearers (-2.0%)
Per 100,000 0.03
Rank movement Up 2,750 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #158,432 | 102 | 0.03 | First available Census row | First available Census row |
| 2020 | #155,682 | 100 | 0.03 | -2 bearers (-2.0%) | Up 2,750 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
2010 vs 2020 Census
How has the Sanphy surname changed between Census years? The chart shows bearer count side by side, and the table compares rank, count, and frequency.
Census year comparison
20102020
| Metric | 2010 | 2020 | Change |
|---|---|---|---|
| Rank | #158,432 | #155,682 | 1.7% |
| Count | 102 | 100 | -2.0% |
| Per 100K | 0.03 | 0.03 | 11.5% |
Between the 2010 and 2020 Census, the number of Sanphy bearers went from 102 to 100 (-2.0% change). The surname moved up 2,750 positions in the national ranking, going from #158,432 to #155,682.
FAQ
Sanphy surname: questions and answers
How many people in the U.S. have the surname Sanphy?
Name Census estimates that about 115 living Americans carry the surname Sanphy. Using the current population baseline, that works out to roughly 1 in 2,980,473 residents.
How common is Sanphy?
Sanphy ranks #155,682 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 100 people with the surname Sanphy. That is different from the site's living-bearer estimate (115), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Sanphy.
Has Sanphy become more or less common over time?
Between 2010 and 2020, the surname Sanphy went from 102 recorded bearers to 100. That is a decrease of 2 (-2.0%). In the national ranking it rose from #158,432 to #155,682.
What does the Census say about the background of Sanphy?
Among Census respondents with the surname Sanphy, the largest self-reported group is White at 92.0%. The next largest groups are Hispanic (4.0%) and Two or More Races (3.0%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Which group reports this surname most often?
White is the largest self-reported group for the surname Sanphy in the 2020 Census, accounting for 92.0% (92 people in the source table).
What is the full ancestry breakdown?
Sanphy appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.0%), Hispanic (4.0%), Two or More Races (3.0%). 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.
Is this page using the latest Census data?
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 Sanphy (2010, 2020).
Does the Census include every surname?
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.
Why don't the ancestry percentages always add up to exactly 100%?
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.
What does Sanphy mean?
A variant spelling of the French habitational surname Santy, from any of several places in France. The fuller origin note on this page goes into more detail.
Where does the surname data come from?
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.
How does Name Census estimate living bearers?
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 Sanphy (0.03 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
How common is the surname Sanphy?
See how many people have the last name Sanphy on HowManyOfMe.org, our sister site built around that single question.