2000
#124,109
National surname rank
First available Census row
A Polish surname derived from a place name referring to a person from the town of Lopienno.
According to the 2020 US Census Bureau surname tables, roughly 135 Americans carry the last name Lopinski. That puts it at #143,511 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,538,921 residents).
This page is the full Name Census profile for the Lopinski 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
135
1 in 2,538,921
Census rank
#143,511
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
118
very rare in the US
Popularity narrative
The Census Bureau recorded 118 bearers of the surname Lopinski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 143511th position in the national surname ranking.
Among Census respondents with the surname Lopinski, the largest self-reported group is White at 94.9%. The next largest groups are Hispanic (2.5%) and Two or More Races (1.7%).
Origin
The surname Lopinski has its origins in Poland. It is derived from the Polish word "lop", which means "maple tree". This suggests that the name may have been given to someone who lived near a maple tree or a grove of maple trees.
The earliest known record of the Lopinski name can be traced back to the 16th century. In 1512, a document from the town of Krakow mentions a man named Jan Lopinski who was a landowner and farmer. This suggests that the name was already well-established in Poland by that time.
In the 17th century, the Lopinski name appears in several Polish historical records. One notable example is Andrzej Lopinski, a soldier who fought in the Polish-Swedish War of 1655-1660. He was renowned for his bravery and is mentioned in several accounts of the conflict.
The Lopinski name also appears in some Polish literary works from the 18th century. For instance, the poet and playwright Ignacy Krasicki mentions a character named Lopinski in his satirical novel "The Adventures of Mr. Nicholas Wisdom" (1776).
One of the most famous individuals with the Lopinski surname was Aleksander Lopinski (1820-1892). He was a renowned Polish painter and art critic who played a significant role in the development of Polish Romantic painting.
Another notable Lopinski was Józef Lopinski (1875-1944), a Polish politician and lawyer who served as a member of the Sejm (Polish parliament) during the interwar period. He was also a prominent member of the Polish Peasant Party.
In the 20th century, Stanisław Lopinski (1901-1977) was a notable Polish engineer and inventor. He is credited with developing several innovative solutions in the field of railway engineering, including a new type of railway switch.
Throughout its history, the Lopinski surname has undergone various spelling variations, such as Łopiński, Łopinski, and Lopinsky. These variations can often be attributed to regional dialects or changes in orthographic conventions over time.
Demographics
Among Census respondents with the surname Lopinski, the largest self-reported group is White at 94.9%. The next largest groups are Hispanic (2.5%) and Two or More Races (1.7%).
The bar chart below shows how Lopinski 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 Lopinski surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Lopinski 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
-13 bearers (-10.2%)
2020
National surname rank
+3 bearers (+2.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #124,109 | 128 | 0.05 | First available Census row | First available Census row |
| 2010 | #144,141 | 115 | 0.04 | -13 bearers (-10.2%) | Down 20,032 places |
| 2020 | #143,511 | 118 | 0.04 | +3 bearers (+2.6%) | Up 630 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 Lopinski 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 | #144,141 | #143,511 | 0.4% |
| Count | 115 | 118 | 2.6% |
| Per 100K | 0.04 | 0.04 | -1.3% |
Between the 2010 and 2020 Census, the number of Lopinski bearers went from 115 to 118 (+2.6% change). The surname moved up 630 positions in the national ranking, going from #144,141 to #143,511.
FAQ
Name Census estimates that about 135 living Americans carry the surname Lopinski. Using the current population baseline, that works out to roughly 1 in 2,538,921 residents.
Lopinski ranks #143,511 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 118 people with the surname Lopinski. That is different from the site's living-bearer estimate (135), 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 Lopinski.
Between 2010 and 2020, the surname Lopinski went from 115 recorded bearers to 118. That is an increase of 3 (+2.6%). In the national ranking it rose from #144,141 to #143,511.
Among Census respondents with the surname Lopinski, the largest self-reported group is White at 94.9%. The next largest groups are Hispanic (2.5%) 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.
White is the largest self-reported group for the surname Lopinski in the 2020 Census, accounting for 94.9% (112 people in the source table).
Lopinski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.9%), Hispanic (2.5%), 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.
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 Lopinski (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 Polish surname derived from a place name referring to a person from the town of Lopienno. 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 Lopinski (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.
You can see how many Americans have the surname Lopinski on our sister site HowManyOfMe.org — same data roots, lighter UI.