2000
#135,837
National surname rank
First available Census row
A locational surname likely derived from a place name in Germany.
According to the 2020 US Census Bureau surname tables, roughly 122 Americans carry the last name Sittloh. That puts it at #152,339 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,809,462 residents).
This page is the full Name Census profile for the Sittloh 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
122
1 in 2,809,462
Census rank
#152,339
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
106
very rare in the US
Popularity narrative
The Census Bureau recorded 106 bearers of the surname Sittloh in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152339th position in the national surname ranking.
Among Census respondents with the surname Sittloh, the largest self-reported group is White at 96.2%. The next largest groups are Two or More Races (1.9%) and Hispanic (0.9%).
Origin
The surname SITTLOH originated in Germany, with the earliest recorded examples dating back to the 16th century. It is believed to be derived from the Low German words "sitten" meaning "to sit" and "loh" meaning "grove" or "thicket." This suggests that the name may have initially referred to someone who lived near a grove or wooded area.
Records indicate that the name was primarily concentrated in the northern regions of Germany, particularly in areas such as Schleswig-Holstein and Lower Saxony. One of the earliest documented mentions of the name can be found in the parish records of the town of Itzehoe, Schleswig-Holstein, in the year 1568, where a certain Hans Sittloh is listed as a resident.
During the 17th and 18th centuries, the name can be found in various historical documents and records from the region, including tax rolls, land deeds, and church registers. One notable individual bearing the name was Johann Sittloh, a merchant and landowner who lived in the town of Lübeck in the late 17th century.
As the centuries progressed, the name spread to other parts of Germany and beyond. In the 19th century, several individuals with the surname SITTLOH made their mark in various fields. These include Carl Sittloh (1809-1876), a German botanist and naturalist who made significant contributions to the study of plant life in the region of Schleswig-Holstein, and Friedrich Sittloh (1823-1892), a German politician and member of the Reichstag (Imperial Parliament) during the late 19th century.
Another notable figure was August Sittloh (1858-1943), a German architect and urban planner who designed several notable buildings and public spaces in cities such as Hamburg and Berlin. In the field of literature, the name is associated with the writer and poet Theodor Sittloh (1871-1944), whose works explored themes of nature and rural life in northern Germany.
While the name SITTLOH is not as common today as it once was, it remains a part of Germany's rich cultural and historical tapestry, having left its mark across various spheres of society over the course of several centuries.
Demographics
Among Census respondents with the surname Sittloh, the largest self-reported group is White at 96.2%. The next largest groups are Two or More Races (1.9%) and Hispanic (0.9%).
The bar chart below shows how Sittloh 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 Sittloh surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Sittloh 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
-11 bearers (-9.6%)
2020
National surname rank
+3 bearers (+2.9%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #135,837 | 114 | 0.04 | First available Census row | First available Census row |
| 2010 | #157,234 | 103 | 0.03 | -11 bearers (-9.6%) | Down 21,397 places |
| 2020 | #152,339 | 106 | 0.04 | +3 bearers (+2.9%) | Up 4,895 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 Sittloh 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 | #157,234 | #152,339 | 3.1% |
| Count | 103 | 106 | 2.9% |
| Per 100K | 0.03 | 0.04 | 18.2% |
Between the 2010 and 2020 Census, the number of Sittloh bearers went from 103 to 106 (+2.9% change). The surname moved up 4,895 positions in the national ranking, going from #157,234 to #152,339.
FAQ
Name Census estimates that about 122 living Americans carry the surname Sittloh. Using the current population baseline, that works out to roughly 1 in 2,809,462 residents.
Sittloh ranks #152,339 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.
The raw 2020 Census file counted 106 people with the surname Sittloh. That is different from the site's living-bearer estimate (122), 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 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 Sittloh.
Between 2010 and 2020, the surname Sittloh went from 103 recorded bearers to 106. That is an increase of 3 (+2.9%). In the national ranking it rose from #157,234 to #152,339.
Among Census respondents with the surname Sittloh, the largest self-reported group is White at 96.2%. The next largest groups are Two or More Races (1.9%) and Hispanic (0.9%). 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 Sittloh in the 2020 Census, accounting for 96.2% (102 people in the source table).
Sittloh appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (96.2%), Two or More Races (1.9%), Hispanic (0.9%). 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 Sittloh (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 locational surname likely derived from a place name in Germany. 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 Sittloh (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.
If you just want to know how many Americans have the surname Sittloh, HowManyOfMe.org gives you the headline number in one glance.