2000
#140,756
National surname rank
First available Census row
An ethnic surname deriving from a Slovak personal name.
According to the 2020 US Census Bureau surname tables, roughly 118 Americans carry the last name Diviak. That puts it at #154,182 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,904,698 residents).
This page is the full Name Census profile for the Diviak 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
118
1 in 2,904,698
Census rank
#154,182
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
103
very rare in the US
Popularity narrative
The Census Bureau recorded 103 bearers of the surname Diviak in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154182nd position in the national surname ranking.
Among Census respondents with the surname Diviak, the largest self-reported group is White at 85.4%. The next largest groups are Hispanic (10.7%) and Two or More Races (1.9%).
Origin
The surname Diviak is believed to have originated in the Czech Republic, dating back to the 16th century. It is derived from the Czech word "divy," which means "wild" or "untamed." This suggests that the name may have initially been a descriptive term used to refer to someone who lived in the wilderness or had a wild or untamed personality.
The earliest recorded instances of the Diviak surname can be found in historical documents from the regions of Bohemia and Moravia, which were part of the Kingdom of Bohemia during the 16th century. Some variations in spelling, such as Divjak or Divyak, were also present in these records.
One notable historical reference to the Diviak name is found in the records of the town of Moravská Třebová, located in the modern-day Czech Republic. These records, dating back to the late 16th century, mention a family with the surname Diviak who were landowners and prominent members of the local community.
Among the earliest known individuals with the Diviak surname was Jan Diviak, born in 1587 in the village of Horní Heřmanice, located in what is now the Olomouc Region of the Czech Republic. He was a farmer and landowner, and his descendants can be traced through various historical records in the region.
Another notable figure was Vojtěch Diviak, who lived in the late 17th century and was a respected scholar and theologian. He was born in 1662 in the town of Klatovy, in what was then the Kingdom of Bohemia. Vojtěch Diviak authored several treatises on theology and philosophy, which were widely read and discussed in academic circles of the time.
In the 18th century, the Diviak surname was also found in the region of Silesia, which was then part of the Kingdom of Prussia. One prominent individual from this era was Jakub Diviak, born in 1732 in the town of Opava (now part of the Czech Republic). He was a successful merchant and businessman, and his descendants continued to play a role in the economic life of the region.
Another notable figure was Kateřina Diviaková, born in 1789 in the town of Hranice, located in what is now the Olomouc Region of the Czech Republic. She was a prominent artist and painter, known for her beautiful landscapes and portraits. Her works were highly regarded during her lifetime and can still be found in various art collections in the Czech Republic.
While the Diviak surname originated in the Czech lands, it has since spread to other parts of the world due to migration and immigration. However, its roots and earliest recorded instances can be traced back to the historical regions of Bohemia, Moravia, and Silesia, which were part of the Kingdom of Bohemia and the Kingdom of Prussia in the 16th to 18th centuries.
Demographics
Among Census respondents with the surname Diviak, the largest self-reported group is White at 85.4%. The next largest groups are Hispanic (10.7%) and Two or More Races (1.9%).
The bar chart below shows how Diviak 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 Diviak surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Diviak 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
+5 bearers (+4.6%)
2020
National surname rank
-11 bearers (-9.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #140,756 | 109 | 0.04 | First available Census row | First available Census row |
| 2010 | #145,220 | 114 | 0.04 | +5 bearers (+4.6%) | Down 4,464 places |
| 2020 | #154,182 | 103 | 0.03 | -11 bearers (-9.6%) | Down 8,962 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 Diviak 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 | #145,220 | #154,182 | -6.2% |
| Count | 114 | 103 | -9.6% |
| Per 100K | 0.04 | 0.03 | -13.9% |
Between the 2010 and 2020 Census, the number of Diviak bearers went from 114 to 103 (-9.6% change). The surname moved down 8,962 positions in the national ranking, going from #145,220 to #154,182.
FAQ
Name Census estimates that about 118 living Americans carry the surname Diviak. Using the current population baseline, that works out to roughly 1 in 2,904,698 residents.
Diviak ranks #154,182 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 103 people with the surname Diviak. That is different from the site's living-bearer estimate (118), 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 0.03 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 Diviak.
Between 2010 and 2020, the surname Diviak went from 114 recorded bearers to 103. That is a decrease of 11 (-9.6%). In the national ranking it fell from #145,220 to #154,182.
Among Census respondents with the surname Diviak, the largest self-reported group is White at 85.4%. The next largest groups are Hispanic (10.7%) and Two or More Races (1.9%). 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 Diviak in the 2020 Census, accounting for 85.4% (88 people in the source table).
Diviak appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (85.4%), Hispanic (10.7%), Two or More Races (1.9%). 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 Diviak (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.
An ethnic surname deriving from a Slovak personal name. 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 Diviak (0.03 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.