2010
#159,712
National surname rank
Recorded bearers 101
First available Census row
Per 100,000 0.03
Very Rare Last name
Mogielnicki
A surname derived from a place name indicating origin from Mogielnicki or Mogielnica, Poland.
According to the 2020 US Census Bureau surname tables, roughly 120 Americans carry the last name Mogielnicki. That puts it at #152,989 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,856,286 residents).
This page is the full Name Census profile for the Mogielnicki 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
120
1 in 2,856,286
Census rank
#152,989
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
105
very rare in the US
Popularity narrative
The Census Bureau recorded 105 bearers of the surname Mogielnicki in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152989th position in the national surname ranking.
Among Census respondents with the surname Mogielnicki, the largest self-reported group is White at 92.4%. The next largest groups are Asian/Pacific Islander (2.9%) and Two or More Races (2.9%).
Origin
Meaning and origin of Mogielnicki
The surname Mogielnicki originates from Poland, where it first appeared in the Middle Ages. It is derived from the Polish word "Mogiła," meaning "mound" or "burial mound," and the suffix "-nicki," which indicates a place of origin or association. This suggests that the name was initially given to someone who lived near a prominent mound or burial site.
The earliest recorded instance of the Mogielnicki surname dates back to the 14th century, when it appeared in the Polish town of Mogilno. This town's name, which means "place of mounds," further reinforces the connection between the surname and its geographical origins.
In the 16th century, the Mogielnicki name was mentioned in the Metryka Koronna, a historical record of Polish nobility and landowners. This suggests that some families bearing this surname had achieved a certain level of prominence and social status during that time.
One notable figure from Polish history with the Mogielnicki surname was Jan Mogielnicki (1609-1670), a Catholic priest and theologian who served as the rector of the Jagiellonian University in Kraków. He was known for his contributions to the field of philosophy and his defense of the Catholic faith during the Counter-Reformation.
Another individual of note was Michał Mogielnicki (1787-1853), a Polish nobleman and politician who served as a member of the Sejm, the Polish parliament, during the first half of the 19th century.
In the late 19th and early 20th centuries, as many Polish immigrants sought new opportunities in the United States and other parts of the world, the Mogielnicki surname began to appear in various immigrant communities. For example, Franciszek Mogielnicki (1856-1924) was a Polish-American entrepreneur and community leader who founded several successful businesses in Chicago.
Wanda Mogielnicki (1901-1986) was a Polish-American artist and printmaker who achieved recognition for her woodcut and linocut works depicting scenes from Polish folklore and daily life.
Throughout its history, the Mogielnicki surname has maintained its Polish roots and connection to the concept of "mounds" or "burial mounds," reflecting the geographical origins of those who first bore this name.
Demographics
Ancestry and ethnicity for Mogielnicki
Among Census respondents with the surname Mogielnicki, the largest self-reported group is White at 92.4%. The next largest groups are Asian/Pacific Islander (2.9%) and Two or More Races (2.9%).
The bar chart below shows how Mogielnicki 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 Mogielnicki surname at the time of the 2020 Census, not any inherent property of the name itself.
- White92.4% · 97
- Asian and Pacific Islander2.9% · 3
- Two or more races2.9% · 3
- Hispanic or Latino1.9% · 2
Timeline
Historical Census data for Mogielnicki
Mogielnicki appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2020
#152,989
National surname rank
Recorded bearers 105
+4 bearers (+4.0%)
Per 100,000 0.04
Rank movement Up 6,723 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #159,712 | 101 | 0.03 | First available Census row | First available Census row |
| 2020 | #152,989 | 105 | 0.04 | +4 bearers (+4.0%) | Up 6,723 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 Mogielnicki 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 | #159,712 | #152,989 | 4.2% |
| Count | 101 | 105 | 4.0% |
| Per 100K | 0.03 | 0.04 | 17.1% |
Between the 2010 and 2020 Census, the number of Mogielnicki bearers went from 101 to 105 (+4.0% change). The surname moved up 6,723 positions in the national ranking, going from #159,712 to #152,989.
FAQ
Mogielnicki surname: questions and answers
How many people in the U.S. have the surname Mogielnicki?
Name Census estimates that about 120 living Americans carry the surname Mogielnicki. Using the current population baseline, that works out to roughly 1 in 2,856,286 residents.
How common is Mogielnicki?
Mogielnicki ranks #152,989 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 105 people with the surname Mogielnicki. That is different from the site's living-bearer estimate (120), 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 Mogielnicki.
Has Mogielnicki become more or less common over time?
Between 2010 and 2020, the surname Mogielnicki went from 101 recorded bearers to 105. That is an increase of 4 (+4.0%). In the national ranking it rose from #159,712 to #152,989.
What does the Census say about the background of Mogielnicki?
Among Census respondents with the surname Mogielnicki, the largest self-reported group is White at 92.4%. The next largest groups are Asian/Pacific Islander (2.9%) and Two or More Races (2.9%). 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 Mogielnicki in the 2020 Census, accounting for 92.4% (97 people in the source table).
What is the full ancestry breakdown?
Mogielnicki appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (92.4%), Asian/Pacific Islander (2.9%), Two or More Races (2.9%). 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.
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 Mogielnicki (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 Mogielnicki mean?
A surname derived from a place name indicating origin from Mogielnicki or Mogielnica, Poland. 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 Mogielnicki (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 have the last name Mogielnicki?
You can see how many people have the last name Mogielnicki on our sister site HowManyOfMe.org — same data roots, lighter UI.