2000
#141,788
National surname rank
First available Census row
A Polish surname likely derived from a place name referring to one's origin.
According to the 2020 US Census Bureau surname tables, roughly 134 Americans carry the last name Harasimowicz. That puts it at #144,270 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,557,868 residents).
This page is the full Name Census profile for the Harasimowicz 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
134
1 in 2,557,868
Census rank
#144,270
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
117
very rare in the US
Popularity narrative
The Census Bureau recorded 117 bearers of the surname Harasimowicz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 144270th position in the national surname ranking.
Among Census respondents with the surname Harasimowicz, the largest self-reported group is White at 94.0%. The next largest groups are Hispanic (5.1%) and Two or More Races (0.9%).
Origin
The surname HARASIMOWICZ has its origins in Poland, dating back to the late 16th century. It is believed to be derived from the Polish word "harasymowy," meaning "turbulent" or "unruly." This suggests that the name may have been initially bestowed upon someone with a fiery or tempestuous personality.
The HARASIMOWICZ name can be traced to the region of Masovia, in central Poland, where it was first recorded in the town of Harasimowice, a small village near the city of Płock. This place name is thought to be the source of the surname, as it was common practice during that time for people to adopt surnames based on their place of origin or residence.
One of the earliest recorded instances of the HARASIMOWICZ name can be found in a 1598 document from the town of Harasimowice, which mentions a landowner named Jan HARASIMOWICZ. This document is housed in the archives of the Płock Regional Museum.
In the 17th century, the HARASIMOWICZ name appears in several church records from the Masovian region, indicating that the family had established itself as a prominent local presence. One notable figure from this period was Tomasz HARASIMOWICZ (1625-1679), a Catholic priest and scholar who authored several theological treatises.
During the 18th century, the HARASIMOWICZ name began to spread beyond Masovia, as members of the family migrated to other parts of Poland. In 1756, a soldier named Jakub HARASIMOWICZ (1730-1795) was recorded as serving in the Polish army during the Seven Years' War.
As the 19th century dawned, the HARASIMOWICZ name continued to gain prominence, with several notable individuals emerging. Franciszek HARASIMOWICZ (1810-1884) was a renowned painter and art teacher who helped establish the Warsaw School of Fine Arts. Aleksandra HARASIMOWICZ (1855-1928) was a pioneering educator and women's rights advocate who founded one of the first schools for girls in Warsaw.
Throughout its history, the HARASIMOWICZ name has been associated with various professions and fields, including the arts, academia, military service, and entrepreneurship. While the name may have originated from humble beginnings in a small village, it has since become a part of Poland's rich cultural tapestry.
Demographics
Among Census respondents with the surname Harasimowicz, the largest self-reported group is White at 94.0%. The next largest groups are Hispanic (5.1%) and Two or More Races (0.9%).
The bar chart below shows how Harasimowicz 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 Harasimowicz surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Harasimowicz 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
+11 bearers (+10.2%)
2020
National surname rank
-2 bearers (-1.7%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #141,788 | 108 | 0.04 | First available Census row | First available Census row |
| 2010 | #140,157 | 119 | 0.04 | +11 bearers (+10.2%) | Up 1,631 places |
| 2020 | #144,270 | 117 | 0.04 | -2 bearers (-1.7%) | Down 4,113 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 Harasimowicz 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 | #140,157 | #144,270 | -2.9% |
| Count | 119 | 117 | -1.7% |
| Per 100K | 0.04 | 0.04 | -2.1% |
Between the 2010 and 2020 Census, the number of Harasimowicz bearers went from 119 to 117 (-1.7% change). The surname moved down 4,113 positions in the national ranking, going from #140,157 to #144,270.
FAQ
Name Census estimates that about 134 living Americans carry the surname Harasimowicz. Using the current population baseline, that works out to roughly 1 in 2,557,868 residents.
Harasimowicz ranks #144,270 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 117 people with the surname Harasimowicz. That is different from the site's living-bearer estimate (134), 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 Harasimowicz.
Between 2010 and 2020, the surname Harasimowicz went from 119 recorded bearers to 117. That is a decrease of 2 (-1.7%). In the national ranking it fell from #140,157 to #144,270.
Among Census respondents with the surname Harasimowicz, the largest self-reported group is White at 94.0%. The next largest groups are Hispanic (5.1%) and Two or More Races (0.9%). 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 Harasimowicz in the 2020 Census, accounting for 94.0% (110 people in the source table).
Harasimowicz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.0%), Hispanic (5.1%), Two or More Races (0.9%). 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 Harasimowicz (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 likely derived from a place name referring to one's origin. 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 Harasimowicz (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 take, check how many people have the last name Harasimowicz on our sister site HowManyOfMe.org.