2000
#193
National surname rank
First available Census row
A patronymic surname of Scandinavian origin meaning "son of Hans," derived from the personal name Hans or Johannes.
According to the 2020 US Census Bureau surname tables, roughly 154,865 Americans carry the last name Hansen. That puts it at #210 in the national surname ranking, appearing at a frequency of 45.18 per 100,000 people (about 1 in 2,213 residents).
This page is the full Name Census profile for the Hansen 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 Hansen with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
155K
1 in 2,213
Census rank
#210
2020 decennial data
Per 100,000
45.2
Frequency rate
Recorded bearers
135K
common in the US
Popularity narrative
The Census Bureau recorded 135,050 bearers of the surname Hansen in its 2020 decennial surname file. At a rate of 45.18 per 100,000 residents, it holds the 210th position in the national surname ranking.
Among Census respondents with the surname Hansen, the largest self-reported group is White at 91.3%. The next largest groups are Hispanic (3.6%) and Two or More Races (3.1%).
Origin
The surname Hansen is of Scandinavian origin, specifically from Denmark and Norway. It is a patronymic surname, meaning it originated from the name of the father or an ancestor. The name is derived from the old Norse personal name Hans, a shortened form of Johannes, which was the Scandinavian version of the name John.
In the Middle Ages, the use of surnames was not widespread, and people were often identified by their given name followed by their father's name with the suffix "-son" added. Hansen, meaning "son of Hans," was one such surname that emerged during this time.
The earliest recorded instances of the surname Hansen can be traced back to the 13th and 14th centuries in Danish and Norwegian records. One of the earliest known bearers of the name was Niels Hansen, a Danish nobleman who lived in the late 13th century.
As the use of surnames became more common, the name Hansen spread across Scandinavia and eventually to other parts of Europe and the Americas as people migrated. In some cases, the spelling of the name may have been modified slightly, such as Hanson or Hannsen, but the root remained the same.
Notable individuals with the surname Hansen throughout history include:
1. Peter Andreas Hansen (1795-1874), a Danish astronomer and mathematician known for his work on the orbit of the Moon and the theory of comets.
2. Gerhard Armauer Hansen (1841-1912), a Norwegian physician who discovered the bacterium responsible for leprosy, now known as Mycobacterium leprae.
3. Alvin Hansen (1887-1975), an American economist and professor at Harvard University, known for his contributions to the theory of the business cycle and Keynesian economics.
4. Lars Hansen (born 1952), an American economist and a recipient of the Nobel Memorial Prize in Economic Sciences in 2013 for his work on asset pricing and time series analysis.
5. Edvard Hansen (1888-1957), a Norwegian painter and printmaker, known for his landscapes and depictions of rural life in Norway.
The surname Hansen has a rich history and has been carried by individuals from various walks of life, including scientists, artists, and scholars, throughout the centuries.
Demographics
Among Census respondents with the surname Hansen, the largest self-reported group is White at 91.3%. The next largest groups are Hispanic (3.6%) and Two or More Races (3.1%).
The bar chart below shows how Hansen 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 Hansen surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Hansen 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
+4,503 bearers (+3.4%)
2020
National surname rank
-2,927 bearers (-2.1%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #193 | 133,474 | 49.48 | First available Census row | First available Census row |
| 2010 | #204 | 137,977 | 46.78 | +4,503 bearers (+3.4%) | Down 11 places |
| 2020 | #210 | 135,050 | 45.18 | -2,927 bearers (-2.1%) | Down 6 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 Hansen 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 | #204 | #210 | -2.9% |
| Count | 137,977 | 135,050 | -2.1% |
| Per 100K | 46.78 | 45.18 | -3.4% |
Between the 2010 and 2020 Census, the number of Hansen bearers went from 137,977 to 135,050 (-2.1% change). The surname moved down 6 positions in the national ranking, going from #204 to #210.
FAQ
Name Census estimates that about 154,865 living Americans carry the surname Hansen. Using the current population baseline, that works out to roughly 1 in 2,213 residents.
Hansen ranks #210 in the 2020 Census surname tables and is classified on this site as "Common." The Census recorded the name at a frequency of 45.18 per 100,000 residents, which is about 45 people out of every 100,000.
The raw 2020 Census file counted 135,050 people with the surname Hansen. That is different from the site's living-bearer estimate (154,865), 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 45.18 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 45 of them to have the surname Hansen.
Between 2010 and 2020, the surname Hansen went from 137,977 recorded bearers to 135,050. That is a decrease of 2,927 (-2.1%). In the national ranking it fell from #204 to #210.
Among Census respondents with the surname Hansen, the largest self-reported group is White at 91.3%. The next largest groups are Hispanic (3.6%) and Two or More Races (3.1%). 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 Hansen in the 2020 Census, accounting for 91.3% (123,317 people in the source table).
Hansen appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.3%), Hispanic (3.6%), Two or More Races (3.1%). 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 Hansen (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.
A patronymic surname of Scandinavian origin meaning "son of Hans," derived from the personal name Hans or Johannes. 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 Hansen (45.18 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
If you just want to know how many people have the last name Hansen, HowManyOfMe.org gives you the headline number in one glance.