2000
#149,328
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.04
Very Rare Last name
Wallerius
Derived from the German word "Waller", meaning a pilgrim or wanderer.
According to the 2020 US Census Bureau surname tables, roughly 114 Americans carry the last name Wallerius. That puts it at #156,005 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 3,006,617 residents).
This page is the full Name Census profile for the Wallerius 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
114
1 in 3,006,617
Census rank
#156,005
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
99
very rare in the US
Popularity narrative
The Census Bureau recorded 99 bearers of the surname Wallerius in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 156005th position in the national surname ranking.
Among Census respondents with the surname Wallerius, the largest self-reported group is White at 100.0%.
Origin
Meaning and origin of Wallerius
The surname Wallerius has its origins in Sweden, tracing back to the 16th century. It is derived from the Swedish word "valleri," which means a person who works with wool or a wool-carder. The name's earliest known spelling was "Vallare," referring to the occupation of carding or combing wool.
In the 17th century, the surname Wallerius appeared in various historical records, including church registers and tax rolls. One of the earliest recorded individuals with this name was Johan Wallerius, born in 1689 in Östergötland, Sweden. He was a renowned chemist and mineralogist, serving as a professor at Uppsala University.
Another notable figure was Nils Wallerius, born in 1706 in Närke, Sweden. He was a theologian and the Bishop of Gothenburg from 1767 until his death in 1792. His contributions to the Swedish Lutheran Church were significant during his lifetime.
In the 18th century, the surname Wallerius was also found in the Netherlands, possibly carried by Swedish immigrants or descendants. One such individual was Jan Wallerius, a Dutch painter born in 1736 in Amsterdam, known for his landscape and architectural works.
The name Wallerius has been associated with various place names and locations in Sweden, such as Walleriusgården, a manor house in Västergötland, and Walleriusvägen, a street in Stockholm named after Johan Wallerius, the chemist.
Another prominent bearer of the name was Carl Wallerius, born in 1803 in Jönköping, Sweden. He was a renowned architect and urban planner, responsible for designing several notable buildings and urban landscapes in Stockholm during the 19th century.
Throughout history, the surname Wallerius has been carried by individuals from various professions, including academia, religion, arts, and architecture. While its origins can be traced back to the wool trade in Sweden, the name has gained recognition and spread to other parts of Europe over the centuries.
Demographics
Ancestry and ethnicity for Wallerius
Among Census respondents with the surname Wallerius, the largest self-reported group is White at 100.0%.
The bar chart below shows how Wallerius 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 Wallerius surname at the time of the 2020 Census, not any inherent property of the name itself.
- White100.0% · 99
Timeline
Historical Census data for Wallerius
Wallerius 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.
2010
#142,108
National surname rank
Recorded bearers 117
+16 bearers (+15.8%)
Per 100,000 0.04
Rank movement Up 7,220 places
2020
#156,005
National surname rank
Recorded bearers 99
-18 bearers (-15.4%)
Per 100,000 0.03
Rank movement Down 13,897 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #149,328 | 101 | 0.04 | First available Census row | First available Census row |
| 2010 | #142,108 | 117 | 0.04 | +16 bearers (+15.8%) | Up 7,220 places |
| 2020 | #156,005 | 99 | 0.03 | -18 bearers (-15.4%) | Down 13,897 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 Wallerius 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 | #142,108 | #156,005 | -9.8% |
| Count | 117 | 99 | -15.4% |
| Per 100K | 0.04 | 0.03 | -17.2% |
Between the 2010 and 2020 Census, the number of Wallerius bearers went from 117 to 99 (-15.4% change). The surname moved down 13,897 positions in the national ranking, going from #142,108 to #156,005.
FAQ
Wallerius surname: questions and answers
How many people in the U.S. have the surname Wallerius?
Name Census estimates that about 114 living Americans carry the surname Wallerius. Using the current population baseline, that works out to roughly 1 in 3,006,617 residents.
How common is Wallerius?
Wallerius ranks #156,005 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 99 people with the surname Wallerius. That is different from the site's living-bearer estimate (114), 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 Wallerius.
Has Wallerius become more or less common over time?
Between 2010 and 2020, the surname Wallerius went from 117 recorded bearers to 99. That is a decrease of 18 (-15.4%). In the national ranking it fell from #142,108 to #156,005.
What does the Census say about the background of Wallerius?
Among Census respondents with the surname Wallerius, the largest self-reported group is White at 100.0%. 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 Wallerius in the 2020 Census, accounting for 100.0% (99 people in the source table).
What is the full ancestry breakdown?
Wallerius appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (100.0%). 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 Wallerius (2000, 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 Wallerius mean?
Derived from the German word "Waller", meaning a pilgrim or wanderer. 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 Wallerius (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 many Americans have the surname Wallerius?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.