2000
#13,609
National surname rank
Recorded bearers 2,046
First available Census row
Per 100,000 0.76
Rare Last name
Blohm
A German toponymic surname referring to someone who lived near a floral or grassy area.
According to the 2020 US Census Bureau surname tables, roughly 2,211 Americans carry the last name Blohm. That puts it at #14,781 in the national surname ranking, appearing at a frequency of 0.65 per 100,000 people (about 1 in 155,022 residents).
This page is the full Name Census profile for the Blohm 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.
For British records, Name Census UK has a British surname profile for Blohm with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
2.2K
1 in 155,022
Census rank
#14,781
2020 decennial data
Per 100,000
0.6
Frequency rate
Recorded bearers
1.9K
rare in the US
Popularity narrative
The Census Bureau recorded 1,928 bearers of the surname Blohm in its 2020 decennial surname file. At a rate of 0.65 per 100,000 residents, it holds the 14781st position in the national surname ranking.
Among Census respondents with the surname Blohm, the largest self-reported group is White at 90.8%. The next largest groups are Two or More Races (4.0%) and Hispanic (3.6%).
Origin
Meaning and origin of Blohm
The surname BLOHM is of German origin and can be traced back to the early 16th century. It is believed to have originated from the Low German word "blôm," meaning "bloom" or "blossom." The name likely referred to someone who lived near a field of flowers or a meadow full of blooms.
In the 16th and 17th centuries, the name BLOHM was primarily found in the northern regions of Germany, particularly in the areas around Hamburg and Schleswig-Holstein. Some of the earliest recorded instances of the name include entries in church records and local tax rolls from towns like Lübeck and Kiel.
One of the earliest notable individuals with the surname BLOHM was Hans Blohm, a merchant and shipowner from Hamburg who lived in the late 16th century. He was known for his successful trading ventures in the Baltic Sea region.
Another historical figure with this surname was Johann Blohm, a Lutheran pastor who served in the town of Rendsburg in the late 17th century. His sermons and writings from that time provide valuable insights into the religious and cultural life of the period.
In the 18th century, the BLOHM name began to spread throughout northern Germany and into neighboring regions. One notable individual from this era was Friedrich Blohm, a military officer who fought in the Seven Years' War (1756-1763) and later became a local magistrate in the city of Lübeck.
As the Industrial Revolution took hold in the 19th century, the BLOHM surname became associated with several prominent industrialists and entrepreneurs. One such figure was Hermann Blohm, born in 1816, who founded the Blohm+Voss shipyard in Hamburg. This company went on to become one of the leading shipbuilders in Europe, constructing ships for both commercial and military purposes.
Another noteworthy individual from this era was Carl Blohm, a renowned architect and urban planner who was born in 1858. He was responsible for designing several iconic buildings and public spaces in Hamburg, including the Kunsthalle art museum and the Outer Alster Lake promenade.
Throughout its history, the BLOHM surname has been carried by individuals from various professions and walks of life, but it remains deeply rooted in the northern German regions where it originated.
Demographics
Ancestry and ethnicity for Blohm
Among Census respondents with the surname Blohm, the largest self-reported group is White at 90.8%. The next largest groups are Two or More Races (4.0%) and Hispanic (3.6%).
The bar chart below shows how Blohm 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 Blohm surname at the time of the 2020 Census, not any inherent property of the name itself.
- White90.8% · 1,750
- Two or more races4.0% · 78
- Hispanic or Latino3.6% · 70
- Asian and Pacific Islander1.0% · 19
- Black or African American0.5% · 10
- American Indian and Alaska Native0.1% · 1
Timeline
Historical Census data for Blohm
Blohm 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.
2010
#14,558
National surname rank
Recorded bearers 2,047
+1 bearers (+0.0%)
Per 100,000 0.69
Rank movement Down 949 places
2020
#14,781
National surname rank
Recorded bearers 1,928
-119 bearers (-5.8%)
Per 100,000 0.65
Rank movement Down 223 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #13,609 | 2,046 | 0.76 | First available Census row | First available Census row |
| 2010 | #14,558 | 2,047 | 0.69 | +1 bearers (+0.0%) | Down 949 places |
| 2020 | #14,781 | 1,928 | 0.65 | -119 bearers (-5.8%) | Down 223 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 Blohm 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 | #14,558 | #14,781 | -1.5% |
| Count | 2,047 | 1,928 | -5.8% |
| Per 100K | 0.69 | 0.65 | -6.5% |
Between the 2010 and 2020 Census, the number of Blohm bearers went from 2,047 to 1,928 (-5.8% change). The surname moved down 223 positions in the national ranking, going from #14,558 to #14,781.
FAQ
Blohm surname: questions and answers
How many people in the U.S. have the surname Blohm?
Name Census estimates that about 2,211 living Americans carry the surname Blohm. Using the current population baseline, that works out to roughly 1 in 155,022 residents.
How common is Blohm?
Blohm ranks #14,781 in the 2020 Census surname tables and is classified on this site as "Rare." The Census recorded the name at a frequency of 0.65 per 100,000 residents, which is about 1 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 1,928 people with the surname Blohm. That is different from the site's living-bearer estimate (2,211), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.65 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.65 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 1 of them to have the surname Blohm.
Has Blohm become more or less common over time?
Between 2010 and 2020, the surname Blohm went from 2,047 recorded bearers to 1,928. That is a decrease of 119 (-5.8%). In the national ranking it fell from #14,558 to #14,781.
What does the Census say about the background of Blohm?
Among Census respondents with the surname Blohm, the largest self-reported group is White at 90.8%. The next largest groups are Two or More Races (4.0%) and Hispanic (3.6%). 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 Blohm in the 2020 Census, accounting for 90.8% (1,750 people in the source table).
What is the full ancestry breakdown?
Blohm appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (90.8%), Two or More Races (4.0%), Hispanic (3.6%). 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 Blohm (2000, 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 Blohm mean?
A German toponymic surname referring to someone who lived near a floral or grassy area. 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 Blohm (0.65 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 Americans have the surname Blohm?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.