2000
#114,166
National surname rank
First available Census row
A surname derived from the given name Michael, with Greek origins meaning "who is like God".
According to the 2020 US Census Bureau surname tables, roughly 138 Americans carry the last name Mikolas. That puts it at #142,049 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,483,727 residents).
This page is the full Name Census profile for the Mikolas 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
138
1 in 2,483,727
Census rank
#142,049
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
120
very rare in the US
Popularity narrative
The Census Bureau recorded 120 bearers of the surname Mikolas in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142049th position in the national surname ranking.
Among Census respondents with the surname Mikolas, the largest self-reported group is White at 95.0%. The next largest groups are Hispanic (2.5%) and Black (0.8%).
Origin
The surname Mikolas is of Czech origin, deriving from the given name Mikolas, which is the Czech form of the name Nicholas. The name can be traced back to the Middle Ages, with its roots in the Greek name Nikolaos, meaning "victor of the people."
Mikolas was a relatively common name in the regions of Bohemia and Moravia, which were part of the Kingdom of Bohemia during the Middle Ages. The earliest recorded instances of the surname can be found in various historical documents from the 14th and 15th centuries, such as parish records and tax rolls.
One notable individual bearing the surname Mikolas was Jan Mikolas, a Czech Renaissance composer and organist who lived in the late 16th century. He is renowned for his contributions to the development of Czech sacred music.
Another significant figure was Vaclav Mikolas, a prominent Czech politician and statesman who served as the Prime Minister of Czechoslovakia from 1938 to 1939, during the turbulent period leading up to World War II.
In the 17th century, the name Mikolas was also recorded in the Bohemian town of Kutná Hora, where a family of silversmiths and metalworkers bore this surname. One member of this family, Tomas Mikolas, became a renowned goldsmith and was commissioned to create intricate works for the nobility.
Moving into the 19th century, Frantisek Mikolas was a notable Czech painter and illustrator who specialized in portraiture and historical scenes. His works can be found in several museums and galleries throughout the Czech Republic.
Lastly, in the 20th century, Jiri Mikolas was a renowned Czech physicist and academic who made significant contributions to the field of solid-state physics. He held prestigious positions at various universities and research institutions, including Charles University in Prague.
Throughout its history, the surname Mikolas has been associated with individuals from various walks of life, including artists, politicians, scholars, and craftsmen, reflecting the rich cultural heritage of the Czech people.
Demographics
Among Census respondents with the surname Mikolas, the largest self-reported group is White at 95.0%. The next largest groups are Hispanic (2.5%) and Black (0.8%).
The bar chart below shows how Mikolas 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 Mikolas surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Mikolas 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
-9 bearers (-6.3%)
2020
National surname rank
-13 bearers (-9.8%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #114,166 | 142 | 0.05 | First available Census row | First available Census row |
| 2010 | #128,249 | 133 | 0.05 | -9 bearers (-6.3%) | Down 14,083 places |
| 2020 | #142,049 | 120 | 0.04 | -13 bearers (-9.8%) | Down 13,800 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 Mikolas 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 | #128,249 | #142,049 | -10.8% |
| Count | 133 | 120 | -9.8% |
| Per 100K | 0.05 | 0.04 | -19.7% |
Between the 2010 and 2020 Census, the number of Mikolas bearers went from 133 to 120 (-9.8% change). The surname moved down 13,800 positions in the national ranking, going from #128,249 to #142,049.
FAQ
Name Census estimates that about 138 living Americans carry the surname Mikolas. Using the current population baseline, that works out to roughly 1 in 2,483,727 residents.
Mikolas ranks #142,049 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 120 people with the surname Mikolas. That is different from the site's living-bearer estimate (138), 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 Mikolas.
Between 2010 and 2020, the surname Mikolas went from 133 recorded bearers to 120. That is a decrease of 13 (-9.8%). In the national ranking it fell from #128,249 to #142,049.
Among Census respondents with the surname Mikolas, the largest self-reported group is White at 95.0%. The next largest groups are Hispanic (2.5%) and Black (0.8%). 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 Mikolas in the 2020 Census, accounting for 95.0% (114 people in the source table).
Mikolas appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (95.0%), Hispanic (2.5%), Black (0.8%). 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.
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 Mikolas (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 surname derived from the given name Michael, with Greek origins meaning "who is like God". 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 Mikolas (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.
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.