2010
#127,494
National surname rank
Recorded bearers 134
First available Census row
Per 100,000 0.05
Very Rare Last name
Loong
An anglicized form of common Chinese surnames like Long or Lung.
According to the 2020 US Census Bureau surname tables, roughly 187 Americans carry the last name Loong. That puts it at #114,090 in the national surname ranking, appearing at a frequency of 0.05 per 100,000 people (about 1 in 1,832,911 residents).
This page is the full Name Census profile for the Loong 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
187
1 in 1,832,911
Census rank
#114,090
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
163
very rare in the US
Popularity narrative
The Census Bureau recorded 163 bearers of the surname Loong in its 2020 decennial surname file. At a rate of 0.05 per 100,000 residents, it holds the 114090th position in the national surname ranking.
Among Census respondents with the surname Loong, the largest self-reported group is Asian/Pacific Islander at 76.7%. The next largest groups are White (9.2%) and Two or More Races (9.2%).
Origin
Meaning and origin of Loong
The surname Loong originated in China, with its earliest known references dating back to the 6th century AD. It is derived from the Chinese word "long" which means "dragon" in English. The name is believed to have been adopted by families who lived in regions where dragons were revered or where the symbol of the dragon held significant cultural importance.
During the Tang Dynasty (618-907 AD), the name Loong appeared in several historical records and manuscripts. One notable mention was found in the "Book of Tang", an official history book that documented the reign of various emperors and prominent families of the time. This suggests that the Loong surname was already well-established among certain lineages during this period.
In the 11th century, a scholar named Loong Zi-Hua (1018-1089) gained recognition for his contributions to Confucian philosophy. His writings and teachings were widely studied, further cementing the reputation of the Loong name.
The surname Loong is also linked to several place names in China, such as Longchuan County in Yunnan Province and Longxi County in Gansu Province. These locations may have been home to early bearers of the surname or influenced its spread throughout different regions.
Another notable figure in history who bore the Loong surname was the Ming Dynasty general Loong Qing (1491-1565). He was renowned for his military successes and strategic leadership during campaigns against rebel forces and foreign invaders.
In the 19th century, Loong Yun-Hua (1834-1898) was a prominent scholar and calligrapher who played a significant role in preserving and promoting traditional Chinese art and literature.
During the 20th century, Loong Fei-Hung (1911-1979) was a celebrated martial artist and actor, best known for his roles in numerous kung fu films which showcased his exceptional skills in various martial arts disciplines.
Demographics
Ancestry and ethnicity for Loong
Among Census respondents with the surname Loong, the largest self-reported group is Asian/Pacific Islander at 76.7%. The next largest groups are White (9.2%) and Two or More Races (9.2%).
The bar chart below shows how Loong 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 Loong surname at the time of the 2020 Census, not any inherent property of the name itself.
- Asian and Pacific Islander76.7% · 125
- White9.2% · 15
- Two or more races9.2% · 15
- American Indian and Alaska Native2.5% · 4
- Black or African American1.2% · 2
- Hispanic or Latino1.2% · 2
Timeline
Historical Census data for Loong
Loong 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
#114,090
National surname rank
Recorded bearers 163
+29 bearers (+21.6%)
Per 100,000 0.05
Rank movement Up 13,404 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #127,494 | 134 | 0.05 | First available Census row | First available Census row |
| 2020 | #114,090 | 163 | 0.05 | +29 bearers (+21.6%) | Up 13,404 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 Loong 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 | #127,494 | #114,090 | 10.5% |
| Count | 134 | 163 | 21.6% |
| Per 100K | 0.05 | 0.05 | 9.1% |
Between the 2010 and 2020 Census, the number of Loong bearers went from 134 to 163 (+21.6% change). The surname moved up 13,404 positions in the national ranking, going from #127,494 to #114,090.
FAQ
Loong surname: questions and answers
How many people in the U.S. have the surname Loong?
Name Census estimates that about 187 living Americans carry the surname Loong. Using the current population baseline, that works out to roughly 1 in 1,832,911 residents.
How common is Loong?
Loong ranks #114,090 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.05 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 163 people with the surname Loong. That is different from the site's living-bearer estimate (187), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.05 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.05 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 Loong.
Has Loong become more or less common over time?
Between 2010 and 2020, the surname Loong went from 134 recorded bearers to 163. That is an increase of 29 (+21.6%). In the national ranking it rose from #127,494 to #114,090.
What does the Census say about the background of Loong?
Among Census respondents with the surname Loong, the largest self-reported group is Asian/Pacific Islander at 76.7%. The next largest groups are White (9.2%) and Two or More Races (9.2%). 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?
Asian/Pacific Islander is the largest self-reported group for the surname Loong in the 2020 Census, accounting for 76.7% (125 people in the source table).
What is the full ancestry breakdown?
Loong appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are Asian/Pacific Islander (76.7%), White (9.2%), Two or More Races (9.2%). 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 Loong (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 Loong mean?
An anglicized form of common Chinese surnames like Long or Lung. 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 Loong (0.05 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 many people have the last name Loong?
You can see how many people have the last name Loong on our sister site HowManyOfMe.org — same data roots, lighter UI.