2000
#94,676
National surname rank
Recorded bearers 179
First available Census row
Per 100,000 0.07
Very Rare Last name
Sironen
A surname of Finnish origin, possibly derived from the word "siro" meaning graceful or delicate.
According to the 2020 US Census Bureau surname tables, roughly 163 Americans carry the last name Sironen. That puts it at #126,357 in the national surname ranking, appearing at a frequency of 0.05 per 100,000 people (about 1 in 2,102,787 residents).
This page is the full Name Census profile for the Sironen 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
163
1 in 2,102,787
Census rank
#126,357
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
142
very rare in the US
Popularity narrative
The Census Bureau recorded 142 bearers of the surname Sironen in its 2020 decennial surname file. At a rate of 0.05 per 100,000 residents, it holds the 126357th position in the national surname ranking.
Among Census respondents with the surname Sironen, the largest self-reported group is White at 87.3%. The next largest groups are Two or More Races (5.6%) and Hispanic (3.5%).
Origin
Meaning and origin of Sironen
The surname Sironen is of Finnish origin, and it first appeared in the 16th century. It is derived from the Finnish word "sirota," which means "graceful" or "slender." The name was likely given as a descriptive nickname to someone who was considered graceful or slender in their appearance or movements.
The earliest recorded instances of the surname can be found in Finnish parish records and census documents from the 16th and 17th centuries. The name was particularly prevalent in the regions of Uusimaa and Häme, which were among the most populated areas of Finland at the time.
One of the earliest known individuals with the surname Sironen was Antti Sironen, a farmer who lived in the village of Janakkala in the late 16th century. Another early record is of Maija Sironen, who was born in Hauho in 1619.
In the 18th century, the surname Sironen began to spread beyond its traditional strongholds in southern Finland. Matti Sironen, born in 1734 in Jämsä, was one of the first individuals to bring the name to central Finland.
A notable figure with the surname Sironen was Juho Sironen (1824-1892), a Finnish peasant and self-taught scholar who made significant contributions to the study of Finnish folklore and mythology. He published several collections of Finnish folk tales and proverbs, which helped to preserve and document the rich oral traditions of the Finnish people.
Another historically significant individual with the surname Sironen was Kaarlo Sironen (1876-1939), a Finnish architect who designed several notable buildings in Helsinki, including the National Museum of Finland and the Helsinki Central Railway Station.
During the 19th and early 20th centuries, the surname Sironen also made its way to other parts of the world through Finnish immigration. Antti Sironen (1864-1942), for example, was a Finnish-American author and journalist who played a significant role in the Finnish-American community in the United States.
Throughout its history, the surname Sironen has maintained its strong ties to its Finnish roots, reflecting the grace and slenderness that were once associated with its earliest bearers.
Demographics
Ancestry and ethnicity for Sironen
Among Census respondents with the surname Sironen, the largest self-reported group is White at 87.3%. The next largest groups are Two or More Races (5.6%) and Hispanic (3.5%).
The bar chart below shows how Sironen 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 Sironen surname at the time of the 2020 Census, not any inherent property of the name itself.
- White87.3% · 124
- Two or more races5.6% · 8
- Hispanic or Latino3.5% · 5
- Asian and Pacific Islander2.1% · 3
- Black or African American1.4% · 2
Timeline
Historical Census data for Sironen
Sironen 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
#98,099
National surname rank
Recorded bearers 185
+6 bearers (+3.4%)
Per 100,000 0.06
Rank movement Down 3,423 places
2020
#126,357
National surname rank
Recorded bearers 142
-43 bearers (-23.2%)
Per 100,000 0.05
Rank movement Down 28,258 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #94,676 | 179 | 0.07 | First available Census row | First available Census row |
| 2010 | #98,099 | 185 | 0.06 | +6 bearers (+3.4%) | Down 3,423 places |
| 2020 | #126,357 | 142 | 0.05 | -43 bearers (-23.2%) | Down 28,258 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 Sironen 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 | #98,099 | #126,357 | -28.8% |
| Count | 185 | 142 | -23.2% |
| Per 100K | 0.06 | 0.05 | -20.8% |
Between the 2010 and 2020 Census, the number of Sironen bearers went from 185 to 142 (-23.2% change). The surname moved down 28,258 positions in the national ranking, going from #98,099 to #126,357.
FAQ
Sironen surname: questions and answers
How many people in the U.S. have the surname Sironen?
Name Census estimates that about 163 living Americans carry the surname Sironen. Using the current population baseline, that works out to roughly 1 in 2,102,787 residents.
How common is Sironen?
Sironen ranks #126,357 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 142 people with the surname Sironen. That is different from the site's living-bearer estimate (163), 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 Sironen.
Has Sironen become more or less common over time?
Between 2010 and 2020, the surname Sironen went from 185 recorded bearers to 142. That is a decrease of 43 (-23.2%). In the national ranking it fell from #98,099 to #126,357.
What does the Census say about the background of Sironen?
Among Census respondents with the surname Sironen, the largest self-reported group is White at 87.3%. The next largest groups are Two or More Races (5.6%) and Hispanic (3.5%). 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 Sironen in the 2020 Census, accounting for 87.3% (124 people in the source table).
What is the full ancestry breakdown?
Sironen appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (87.3%), Two or More Races (5.6%), Hispanic (3.5%). 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 Sironen (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 Sironen mean?
A surname of Finnish origin, possibly derived from the word "siro" meaning graceful or delicate. 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 Sironen (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 share the surname Sironen?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.