2000
#134,037
National surname rank
Recorded bearers 116
First available Census row
Per 100,000 0.04
Very Rare Last name
Tonsfeldt
A topographic surname referring to someone who lived near a wooded valley or wilderness area.
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Tonsfeldt. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Tonsfeldt 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Tonsfeldt in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Tonsfeldt, the largest self-reported group is White at 95.5%. The next largest groups are Two or More Races (2.7%) and American Indian/Alaska Native (1.8%).
Origin
Meaning and origin of Tonsfeldt
The surname TONSFELDT is believed to have originated in Germany, with its earliest recorded instances dating back to the 16th century. The name likely derives from the German words "tonne" meaning "barrel" and "feld" meaning "field," suggesting that the name may have been given to someone who lived or worked near a field where barrels were stored or produced.
One of the earliest recorded instances of the name TONSFELDT can be found in the parish records of the town of Halle, in the present-day state of Saxony-Anhalt, Germany. The record, dated 1578, mentions a certain Hans TONSFELDT, who was listed as a cooper (a barrel-maker).
In the 17th century, the name TONSFELDT appears in various documents from the region around the city of Nuremberg, in the state of Bavaria. One notable figure from this period was Johann TONSFELDT (1627-1691), a merchant and landowner who was instrumental in the establishment of a local trade guild.
As the name spread across Germany and neighboring regions, several variations in spelling emerged, including TONSFELD, TONSFELT, and TONSFELDE. These variations likely reflect regional dialects and variations in pronunciation.
In the 18th century, a family bearing the name TONSFELDT settled in the town of Bremerhaven, in the northern German state of Bremen. This family produced several notable individuals, including Wilhelm TONSFELDT (1745-1823), a shipbuilder and maritime merchant, and his son, Friedrich TONSFELDT (1779-1848), who served as a sea captain and later became a respected shipowner.
Another individual of note was Anna TONSFELDT (1805-1878), a philanthropist from the city of Hamburg, who was renowned for her charitable work and her support for orphanages and schools.
As the Industrial Revolution took hold in the 19th century, the name TONSFELDT became more widely dispersed, with families bearing this surname migrating to other parts of Europe and even to the Americas in search of economic opportunities.
Overall, the surname TONSFELDT has a rich history rooted in the German-speaking regions of Europe, with its origins likely tied to occupations and locations associated with barrel-making and related industries.
Demographics
Ancestry and ethnicity for Tonsfeldt
Among Census respondents with the surname Tonsfeldt, the largest self-reported group is White at 95.5%. The next largest groups are Two or More Races (2.7%) and American Indian/Alaska Native (1.8%).
The bar chart below shows how Tonsfeldt 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 Tonsfeldt surname at the time of the 2020 Census, not any inherent property of the name itself.
- White95.5% · 105
- Two or more races2.7% · 3
- American Indian and Alaska Native1.8% · 2
Timeline
Historical Census data for Tonsfeldt
Tonsfeldt 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
#151,532
National surname rank
Recorded bearers 108
-8 bearers (-6.9%)
Per 100,000 0.04
Rank movement Down 17,495 places
2020
#149,446
National surname rank
Recorded bearers 110
+2 bearers (+1.9%)
Per 100,000 0.04
Rank movement Up 2,086 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #134,037 | 116 | 0.04 | First available Census row | First available Census row |
| 2010 | #151,532 | 108 | 0.04 | -8 bearers (-6.9%) | Down 17,495 places |
| 2020 | #149,446 | 110 | 0.04 | +2 bearers (+1.9%) | Up 2,086 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 Tonsfeldt 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 | #151,532 | #149,446 | 1.4% |
| Count | 108 | 110 | 1.9% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Tonsfeldt bearers went from 108 to 110 (+1.9% change). The surname moved up 2,086 positions in the national ranking, going from #151,532 to #149,446.
FAQ
Tonsfeldt surname: questions and answers
How many people in the U.S. have the surname Tonsfeldt?
Name Census estimates that about 126 living Americans carry the surname Tonsfeldt. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
How common is Tonsfeldt?
Tonsfeldt ranks #149,446 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.04 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 110 people with the surname Tonsfeldt. That is different from the site's living-bearer estimate (126), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.04 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 Tonsfeldt.
Has Tonsfeldt become more or less common over time?
Between 2010 and 2020, the surname Tonsfeldt went from 108 recorded bearers to 110. That is an increase of 2 (+1.9%). In the national ranking it rose from #151,532 to #149,446.
What does the Census say about the background of Tonsfeldt?
Among Census respondents with the surname Tonsfeldt, the largest self-reported group is White at 95.5%. The next largest groups are Two or More Races (2.7%) and American Indian/Alaska Native (1.8%). 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 Tonsfeldt in the 2020 Census, accounting for 95.5% (105 people in the source table).
What is the full ancestry breakdown?
Tonsfeldt appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.5%), Two or More Races (2.7%), American Indian/Alaska Native (1.8%). 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 Tonsfeldt (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 Tonsfeldt mean?
A topographic surname referring to someone who lived near a wooded valley or wilderness area. 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 Tonsfeldt (0.04 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 common is the surname Tonsfeldt?
Our sister site HowManyOfMe.org answers how many people are called Tonsfeldt at a glance, with the living-bearer count up front.