Sieloff last name popularity, history, and meaning

Find out how popular the last name Sieloff is in the United States and learn more about the meaning, history, and race and ethnic origin of people in America who are named Sieloff.

Meaning of Sieloff

A German surname derived from a place name, possibly referring to a location or geographic feature.

Sieloff, like all of the last names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Sieloff surname is from the 2010 census data.

Popularity of Sieloff in America

Sieloff is the 42579th most popular name in America based on the data we have collected from the U.S. Census Bureau.

The Sieloff surname appeared 509 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 people would have the surname Sieloff.

We can also compare 2010 data for Sieloff to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.

2010 2000 Change (%)
Rank 42579 38141 11.00%
Count 509 546 -7.01%
Proportion per 100k 0.17 0.20 -16.22%

The history of the last name Sieloff

The surname Sieloff is of German origin, with its roots tracing back to the late medieval period in central Europe. It is believed to be a locative name, derived from a place name such as Sielau or Sielhof, which likely referred to a farmstead or small settlement near a body of water.

One of the earliest recorded instances of the name can be found in the parish records of the town of Erfurt, in present-day Thuringia, Germany, where a certain Hans Sieloff was mentioned in 1472. In the 16th century, the name appears in various spellings, including Sielhoff, Sielhoffe, and Sielhofen, reflecting regional variations in pronunciation and orthography.

During the 17th and 18th centuries, the Sieloff family seems to have been well-established in the region of Saxony, particularly in the cities of Leipzig and Dresden. Archival records from this period mention several notable individuals bearing the name, such as Johann Sieloff (1623-1688), a respected theologian and author of several religious treatises.

As the Sieloff surname spread across German-speaking lands, it also found its way into the historical records of neighboring countries. In the late 18th century, a merchant named Franz Sieloff (1754-1832) is documented as having resided in the city of Prague, then part of the Habsburg Monarchy.

The 19th century saw the migration of many Sieloff families to the United States and other parts of the world, driven by economic opportunities and political upheavals in Europe. One prominent figure from this era was Carl Sieloff (1819-1898), a German-American engineer and inventor who made significant contributions to the development of early steam engines and locomotives.

Throughout its long history, the Sieloff name has been associated with various professions and notable individuals. These include Heinrich Sieloff (1878-1946), a German painter and illustrator known for his landscapes and portraits, and Theodor Sieloff (1917-2006), a respected German architect who designed several landmark buildings in post-war Berlin.

Race and ethnic origin of people with the last name Sieloff

We also have some data on the ancestry of people with the surname Sieloff.

The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups:

  1. White only
  2. Black only
  3. American Indian and Alaskan Native only
  4. Asian and Pacific Islander only
  5. Hispanic
  6. Two or More Races

For the most recent 2010 census data, the race/ethnic origin breakdown for Sieloff was:

Race/Ethnicity Percentage Total Occurrences
Non-Hispanic White Only 94.50% 481
Non-Hispanic Black Only (S)% (S)
Non-Hispanic Asian and Pacific Islander Only 1.18% 6
Non-Hispanic American Indian and Alaskan Native (S)% (S)
Non-Hispanic of Two or More Races 1.18% 6
Hispanic Origin 2.95% 15

Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.

Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Sieloff has changed in the 10 years between the two census surveys.

2010 2000 Change (%)
White 94.50% 96.52% -2.11%
Black (S)% (S)% (S)%
Asian and Pacific Islander 1.18% 0.92% 24.76%
American Indian and Alaskan Native (S)% 0.00% (S)%
Two or More Races 1.18% (S)% (S)%
Hispanic 2.95% 1.83% 46.86%

Data source

The last name data and ethnic breakdown of last names is sourced directly from the Decennial Census survey, conducted every 10 years by the United States Census Bureau.

The history and meaning of the name Sieloff was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Sieloff, please contact us.

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"Sieloff last name popularity, history, and meaning". NameCensus.com. Accessed on September 17, 2025. http://namecensus.com/last-names/sieloff-surname-popularity/.

"Sieloff last name popularity, history, and meaning". NameCensus.com, http://namecensus.com/last-names/sieloff-surname-popularity/. Accessed 17 September, 2025

Sieloff last name popularity, history, and meaning. NameCensus.com. Retrieved from http://namecensus.com/last-names/sieloff-surname-popularity/.

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