2010
#154,907
National surname rank
First available Census row
A German surname likely derived from the words "weiss" (white) and "blum" (flower).
According to the 2020 US Census Bureau surname tables, roughly 122 Americans carry the last name Weisblum. That puts it at #152,339 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,809,462 residents).
This page is the full Name Census profile for the Weisblum 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
122
1 in 2,809,462
Census rank
#152,339
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
106
very rare in the US
Popularity narrative
The Census Bureau recorded 106 bearers of the surname Weisblum in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 152339th position in the national surname ranking.
Among Census respondents with the surname Weisblum, the largest self-reported group is White at 97.2%. The next largest groups are Black (0.9%) and Asian/Pacific Islander (0.9%).
Origin
The surname Weisblum originated in the Ashkenazi Jewish communities of Eastern Europe, particularly in areas that are now part of modern-day Poland and Ukraine. It is believed to have emerged sometime around the 16th or 17th century as a descriptive name, derived from the German words "weiss" meaning "white" and "blum" meaning "flower."
The name Weisblum likely referred to someone who had a pale complexion or perhaps someone who grew or traded white flowers. In some cases, surnames of this nature were also used to distinguish between different branches of a family or to identify individuals by a physical characteristic or occupation.
One of the earliest recorded instances of the Weisblum surname can be found in the Kehillat Sanz Memorial Book, which documents the Jewish community of Nowy Sącz, Poland. The book mentions a Rabbi Yitzchak Weisblum, who lived in the late 18th century and was renowned for his teachings and scholarship.
Another notable individual with this surname was Yehoshua Weisblum, a prominent Hasidic rabbi and author who lived in the late 19th and early 20th centuries. He was born in Galicia, then part of the Austro-Hungarian Empire, and was a revered leader within the Chabad-Lubavitch Hasidic movement.
In the early 20th century, a man named Shmuel Weisblum was a respected member of the Jewish community in Ciechanów, Poland. He was known for his involvement in various charitable organizations and his efforts to preserve Jewish culture and traditions.
The name Weisblum can also be found in historical records from the Russian Empire, where many Ashkenazi Jews had settled during the 19th century. One notable figure was Boris Weisblum, a Russian-born businessman and philanthropist who lived from 1866 to 1942.
Another individual of note was Chaim Weisblum, a Hasidic rabbi and author who lived in the late 19th and early 20th centuries in Ukraine. He was a prominent figure within the Chabad-Lubavitch movement and authored several works on Jewish law and philosophy.
As with many Jewish surnames, the Weisblum name has undergone various spelling variations over time, including Weissblum, Vajsblum, and Weizblum, among others. These variations likely emerged as a result of immigration, transcription errors, or adaptations to different languages and cultures.
Demographics
Among Census respondents with the surname Weisblum, the largest self-reported group is White at 97.2%. The next largest groups are Black (0.9%) and Asian/Pacific Islander (0.9%).
The bar chart below shows how Weisblum 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 Weisblum surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Weisblum 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.
2010
National surname rank
First available Census row
2020
National surname rank
+1 bearers (+1.0%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #154,907 | 105 | 0.04 | First available Census row | First available Census row |
| 2020 | #152,339 | 106 | 0.04 | +1 bearers (+1.0%) | Up 2,568 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 Weisblum 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 | #154,907 | #152,339 | 1.7% |
| Count | 105 | 106 | 1.0% |
| Per 100K | 0.04 | 0.04 | -11.3% |
Between the 2010 and 2020 Census, the number of Weisblum bearers went from 105 to 106 (+1.0% change). The surname moved up 2,568 positions in the national ranking, going from #154,907 to #152,339.
FAQ
Name Census estimates that about 122 living Americans carry the surname Weisblum. Using the current population baseline, that works out to roughly 1 in 2,809,462 residents.
Weisblum ranks #152,339 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 106 people with the surname Weisblum. That is different from the site's living-bearer estimate (122), 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 Weisblum.
Between 2010 and 2020, the surname Weisblum went from 105 recorded bearers to 106. That is an increase of 1 (+1.0%). In the national ranking it rose from #154,907 to #152,339.
Among Census respondents with the surname Weisblum, the largest self-reported group is White at 97.2%. The next largest groups are Black (0.9%) and Asian/Pacific Islander (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 Weisblum in the 2020 Census, accounting for 97.2% (103 people in the source table).
Weisblum appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (97.2%), Black (0.9%), Asian/Pacific Islander (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 Weisblum (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 German surname likely derived from the words "weiss" (white) and "blum" (flower). 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 Weisblum (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.
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.