2010
#156,044
National surname rank
First available Census row
A surname originating from Thailand referring to an individual from Amphoe Pho Nang in Nakhon Phanom Province.
According to the 2020 US Census Bureau surname tables, roughly 112 Americans carry the last name Amphonephong. That puts it at #156,269 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 3,060,307 residents).
This page is the full Name Census profile for the Amphonephong 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
112
1 in 3,060,307
Census rank
#156,269
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
98
very rare in the US
Popularity narrative
The Census Bureau recorded 98 bearers of the surname Amphonephong in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 156269th position in the national surname ranking.
Among Census respondents with the surname Amphonephong, the largest self-reported group is Asian/Pacific Islander at 87.8%. The next largest groups are Two or More Races (10.2%) and White (1.0%).
Origin
The surname AMPHONEPHONG has its origins in the ancient Kingdom of Siam, now known as Thailand. Tracing back to the 13th century, this name is derived from two Thai words: "am-phon," meaning "thunder," and "phong," meaning "wind" or "storm." The combination of these words suggests a connection to the powerful forces of nature.
One of the earliest records of this surname can be found in the Ayutthaya Kingdom chronicles, which documented the lives of prominent families during the 14th and 15th centuries. It is believed that the AMPHONEPHONG lineage originated from a small village situated near the banks of the Chao Phraya River, where thunderstorms were a common occurrence.
In the 16th century, a renowned Thai poet and scholar named Chao Phraya AMPHONEPHONG (1520-1592) gained recognition for his literary contributions, including the epic poem "Khun Chang Khun Phan." His works celebrated the rich cultural heritage of Siam and were widely circulated among the royal courts of the time.
During the reign of King Narai the Great (1633-1688), a prominent military commander named Phraya AMPHONEPHONG (1620-1695) played a crucial role in defending the kingdom against foreign invasions. His bravery and strategic skills earned him a place in the annals of Thai history.
In the 18th century, a renowned Buddhist monk known as Luang Pu AMPHONEPHONG (1710-1782) gained a following for his teachings and wisdom. His monastery, located in the northern region of Siam, became a center of spiritual learning and attracted disciples from across the kingdom.
Another notable figure bearing this surname was Khunying AMPHONEPHONG (1845-1912), a prominent philanthropist and advocate for women's education. She established one of the first schools for girls in Bangkok, paving the way for greater educational opportunities for women in Siam.
Over the centuries, the AMPHONEPHONG surname has been carried by numerous individuals who have contributed to various fields, including literature, military, religion, and social reform. While the name itself may have evolved slightly in spelling or pronunciation, its connection to the powerful forces of nature remains deeply ingrained in its etymology and cultural significance.
Demographics
Among Census respondents with the surname Amphonephong, the largest self-reported group is Asian/Pacific Islander at 87.8%. The next largest groups are Two or More Races (10.2%) and White (1.0%).
The bar chart below shows how Amphonephong 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 Amphonephong surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Amphonephong 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.
2010
National surname rank
First available Census row
2020
National surname rank
-6 bearers (-5.8%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #156,044 | 104 | 0.04 | First available Census row | First available Census row |
| 2020 | #156,269 | 98 | 0.03 | -6 bearers (-5.8%) | Down 225 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 Amphonephong 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 | #156,044 | #156,269 | -0.1% |
| Count | 104 | 98 | -5.8% |
| Per 100K | 0.04 | 0.03 | -18.0% |
Between the 2010 and 2020 Census, the number of Amphonephong bearers went from 104 to 98 (-5.8% change). The surname moved down 225 positions in the national ranking, going from #156,044 to #156,269.
FAQ
Name Census estimates that about 112 living Americans carry the surname Amphonephong. Using the current population baseline, that works out to roughly 1 in 3,060,307 residents.
Amphonephong ranks #156,269 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.
The raw 2020 Census file counted 98 people with the surname Amphonephong. That is different from the site's living-bearer estimate (112), 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 0.03 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 Amphonephong.
Between 2010 and 2020, the surname Amphonephong went from 104 recorded bearers to 98. That is a decrease of 6 (-5.8%). In the national ranking it fell from #156,044 to #156,269.
Among Census respondents with the surname Amphonephong, the largest self-reported group is Asian/Pacific Islander at 87.8%. The next largest groups are Two or More Races (10.2%) and White (1.0%). These figures come from the 2020 Census Bureau surname tables, based on how respondents described their own race and ethnicity.
Asian/Pacific Islander is the largest self-reported group for the surname Amphonephong in the 2020 Census, accounting for 87.8% (86 people in the source table).
Amphonephong appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (87.8%), Two or More Races (10.2%), White (1.0%). 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 Amphonephong (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 originating from Thailand referring to an individual from Amphoe Pho Nang in Nakhon Phanom Province. 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 Amphonephong (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.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.