2000
#136,783
National surname rank
First available Census row
A Polish surname derived from "dobry" meaning good and associated with virtuous or admirable qualities.
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Dobrzykowski. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Dobrzykowski 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Dobrzykowski in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Dobrzykowski, the largest self-reported group is White at 94.5%. The next largest groups are Asian/Pacific Islander (1.8%) and American Indian/Alaska Native (1.8%).
Origin
The surname "DOBRZYKOWSKI" originated in Poland, and its earliest known use dates back to the 15th century. The name is derived from the Polish word "dobry," which means "good," and the suffix "-kowski," indicating a place of origin or residence.
In the late Middle Ages, the use of hereditary surnames became more widespread in Poland, particularly among the nobility and the wealthy. The surname "DOBRZYKOWSKI" likely emerged during this period, potentially referring to someone from a specific location related to the word "dobry," such as a town or village with a name like "Dobrzyki" or "Dobrzyków."
One of the earliest recorded instances of the surname "DOBRZYKOWSKI" can be found in the Płock Cathedral Archives, which date back to the 16th century. These archives contain records of various noble families and landowners in the region.
In the 17th century, a prominent figure bearing the surname "DOBRZYKOWSKI" was Jan Dobrzykowski, a Polish nobleman and military commander who fought in the Polish-Swedish wars. He was born in 1610 and died in 1678.
Another notable individual with this surname was Franciszek Dobrzykowski, a Polish painter and artist who lived in the 18th century. He was known for his religious and historical paintings, which adorned several churches and monasteries in Poland.
During the 19th century, a Polish writer and poet named Kazimierz Dobrzykowski gained recognition for his works, which often explored themes of patriotism and national identity. He was born in 1824 and died in 1901.
In the early 20th century, a Polish mathematician and logician named Jan Dobrzykowski made significant contributions to the field of mathematical logic. He was born in 1892 and died in 1965.
Another prominent figure with the surname "DOBRZYKOWSKI" was Tadeusz Dobrzykowski, a Polish military officer and resistance fighter during World War II. He played a crucial role in the Polish Underground State and the Warsaw Uprising against the German occupation. He was born in 1908 and died in 1987.
Demographics
Among Census respondents with the surname Dobrzykowski, the largest self-reported group is White at 94.5%. The next largest groups are Asian/Pacific Islander (1.8%) and American Indian/Alaska Native (1.8%).
The bar chart below shows how Dobrzykowski 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 Dobrzykowski surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Dobrzykowski 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 (-8.0%)
2020
National surname rank
+6 bearers (+5.8%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #136,783 | 113 | 0.04 | First available Census row | First available Census row |
| 2010 | #156,044 | 104 | 0.04 | -9 bearers (-8.0%) | Down 19,261 places |
| 2020 | #149,446 | 110 | 0.04 | +6 bearers (+5.8%) | Up 6,598 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 Dobrzykowski 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 | #156,044 | #149,446 | 4.2% |
| Count | 104 | 110 | 5.8% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Dobrzykowski bearers went from 104 to 110 (+5.8% change). The surname moved up 6,598 positions in the national ranking, going from #156,044 to #149,446.
FAQ
Name Census estimates that about 126 living Americans carry the surname Dobrzykowski. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
Dobrzykowski ranks #149,446 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 110 people with the surname Dobrzykowski. That is different from the site's living-bearer estimate (126), 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 Dobrzykowski.
Between 2010 and 2020, the surname Dobrzykowski went from 104 recorded bearers to 110. That is an increase of 6 (+5.8%). In the national ranking it rose from #156,044 to #149,446.
Among Census respondents with the surname Dobrzykowski, the largest self-reported group is White at 94.5%. The next largest groups are Asian/Pacific Islander (1.8%) and American Indian/Alaska Native (1.8%). 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 Dobrzykowski in the 2020 Census, accounting for 94.5% (104 people in the source table).
Dobrzykowski appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.5%), Asian/Pacific Islander (1.8%), American Indian/Alaska Native (1.8%). 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 Dobrzykowski (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 "dobry" meaning good and associated with virtuous or admirable qualities. 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 Dobrzykowski (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 faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.