2000
#138,741
National surname rank
Recorded bearers 111
First available Census row
Per 100,000 0.04
Very Rare Last name
Senchuk
A variant spelling of the Ukrainian surname meaning "one who comes from Sen".
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Senchuk. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Senchuk 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
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Senchuk in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Senchuk, the largest self-reported group is White at 94.9%. The next largest groups are Black (1.7%) and Two or More Races (1.7%).
Origin
Meaning and origin of Senchuk
The surname SENCHUK has its origins in Ukraine, dating back to the 16th century. It is believed to be derived from the Ukrainian word "senchyn," which means "son of Senko." This suggests that the name may have initially been a patronymic, used to identify someone as the son of a man named Senko.
The earliest recorded instances of the SENCHUK surname can be found in historical records from the regions of Galicia and Volhynia, which were part of the Kingdom of Poland and the Grand Duchy of Lithuania at the time. These areas are now located in modern-day western Ukraine and eastern Poland.
One of the earliest known references to the SENCHUK name appears in a 1598 document from the town of Lviv (then known as Lemberg), which mentions a certain Hryhorii Senchuk as a landowner in the area. This suggests that the SENCHUK family may have held a prominent position in the local community during that period.
In the 17th century, the SENCHUK surname can be found in records from the town of Ternopil (then known as Tarnopol), where a Petro Senchuk is listed as a member of the local guild of merchants in 1622. This indicates that the SENCHUK family had also established itself in trade and commerce.
During the 18th century, the SENCHUK name appears to have spread to other parts of Ukraine, with records from the city of Kyiv (then known as Kiev) mentioning a Pavlo Senchuk who served as a Cossack officer in the Russian Imperial Army in the late 1700s.
Notable individuals bearing the SENCHUK surname throughout history include Andriy Senchuk (1903-1985), a Ukrainian writer and poet who was persecuted during the Stalin era, and Mykhailo Senchuk (1879-1944), a prominent Ukrainian lawyer and politician who served as a member of the Austro-Hungarian parliament in the early 20th century.
Other notable SENCHUKS include Volodymyr Senchuk (1920-1992), a Ukrainian dissident and human rights activist who spent several years in Soviet labor camps, and Uliana Senchuk (1912-1989), a Ukrainian actress and theater director who was active in the cultural life of Lviv during the mid-20th century.
Demographics
Ancestry and ethnicity for Senchuk
Among Census respondents with the surname Senchuk, the largest self-reported group is White at 94.9%. The next largest groups are Black (1.7%) and Two or More Races (1.7%).
The bar chart below shows how Senchuk 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 Senchuk surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.9% · 111
- Black or African American1.7% · 2
- Two or more races1.7% · 2
- Hispanic or Latino0.9% · 1
- American Indian and Alaska Native0.9% · 1
Timeline
Historical Census data for Senchuk
Senchuk 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
#139,228
National surname rank
Recorded bearers 120
+9 bearers (+8.1%)
Per 100,000 0.04
Rank movement Down 487 places
2020
#144,270
National surname rank
Recorded bearers 117
-3 bearers (-2.5%)
Per 100,000 0.04
Rank movement Down 5,042 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #138,741 | 111 | 0.04 | First available Census row | First available Census row |
| 2010 | #139,228 | 120 | 0.04 | +9 bearers (+8.1%) | Down 487 places |
| 2020 | #144,270 | 117 | 0.04 | -3 bearers (-2.5%) | Down 5,042 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 Senchuk 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 | #139,228 | #144,270 | -3.6% |
| Count | 120 | 117 | -2.5% |
| Per 100K | 0.04 | 0.04 | -2.1% |
Between the 2010 and 2020 Census, the number of Senchuk bearers went from 120 to 117 (-2.5% change). The surname moved down 5,042 positions in the national ranking, going from #139,228 to #144,270.
FAQ
Senchuk surname: questions and answers
How many people in the U.S. have the surname Senchuk?
Name Census estimates that about 134 living Americans carry the surname Senchuk. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
How common is Senchuk?
Senchuk ranks #144,270 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 117 people with the surname Senchuk. That is different from the site's living-bearer estimate (134), 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 Senchuk.
Has Senchuk become more or less common over time?
Between 2010 and 2020, the surname Senchuk went from 120 recorded bearers to 117. That is a decrease of 3 (-2.5%). In the national ranking it fell from #139,228 to #144,270.
What does the Census say about the background of Senchuk?
Among Census respondents with the surname Senchuk, the largest self-reported group is White at 94.9%. The next largest groups are Black (1.7%) and Two or More Races (1.7%). 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 Senchuk in the 2020 Census, accounting for 94.9% (111 people in the source table).
What is the full ancestry breakdown?
Senchuk appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.9%), Black (1.7%), Two or More Races (1.7%). 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 Senchuk (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 Senchuk mean?
A variant spelling of the Ukrainian surname meaning "one who comes from Sen". 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 Senchuk (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 many people are called Senchuk?
Our sister site HowManyOfMe.org answers how many people have the surname Senchuk at a glance, with the living-bearer count up front.