2000
#83,965
National surname rank
First available Census row
German surname translating to "stream tree" or "brook wood".
According to the 2020 US Census Bureau surname tables, roughly 219 Americans carry the last name Lochbaum. That puts it at #100,867 in the national surname ranking, appearing at a frequency of 0.06 per 100,000 people (about 1 in 1,565,088 residents).
This page is the full Name Census profile for the Lochbaum 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
219
1 in 1,565,088
Census rank
#100,867
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
191
very rare in the US
Popularity narrative
The Census Bureau recorded 191 bearers of the surname Lochbaum in its 2020 decennial surname file. At a rate of 0.06 per 100,000 residents, it holds the 100867th position in the national surname ranking.
Among Census respondents with the surname Lochbaum, the largest self-reported group is White at 91.1%. The next largest groups are Hispanic (2.6%) and Asian/Pacific Islander (2.6%).
Origin
The surname Lochbaum has its origins in Germany, where it first emerged in the 13th century. It is derived from the Old Germanic words "loch" meaning "hollow" or "hole," and "baum" meaning "tree." Together, these words suggest that the name originally referred to someone who lived near a hollow or hole in a tree.
One of the earliest recorded instances of the name Lochbaum can be found in an old German manuscript from the year 1287, which mentions a person named Johannes Lochbaum residing in the town of Rothenburg ob der Tauber. This town, located in the region of Bavaria, was known for its well-preserved medieval architecture and was likely home to many families bearing surnames related to their surroundings.
In the 16th century, the Lochbaum name appeared in various records across Germany, including in the town of Goslar in Lower Saxony, where a family of miners bearing the surname is mentioned. This suggests that the name may have been associated with certain occupations or trades related to the natural environment.
One notable figure with the Lochbaum surname was Johann Lochbaum, a German artist born in 1671 in the city of Nuremberg. He was known for his intricate etchings and engravings, many of which depicted scenes of everyday life in the city during that time.
Another individual of historical significance was Katharina Lochbaum, born in 1734 in the town of Bamberg, Bavaria. She is remembered for her involvement in the local resistance movement against the French occupation of the region during the Napoleonic Wars.
In the 19th century, the Lochbaum name began to spread beyond Germany, with some families emigrating to other parts of Europe and eventually to the Americas. One noteworthy figure from this period was Carl Lochbaum, a German-American engineer born in 1848 in the city of Cologne. He later immigrated to the United States and played a key role in the construction of several major bridges and infrastructure projects.
Another Lochbaum of note was Friedrich Lochbaum, a German philosopher and academic born in 1822 in the town of Göttingen. He wrote extensively on the concept of phenomenology and was a contemporary of philosophers such as Edmund Husserl and Martin Heidegger.
Throughout its history, the Lochbaum surname has maintained its connection to its Germanic roots, reflecting the rich cultural heritage and diverse experiences of those who have borne this name over the centuries.
Demographics
Among Census respondents with the surname Lochbaum, the largest self-reported group is White at 91.1%. The next largest groups are Hispanic (2.6%) and Asian/Pacific Islander (2.6%).
The bar chart below shows how Lochbaum 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 Lochbaum surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Lochbaum 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
+19 bearers (+9.1%)
2020
National surname rank
-36 bearers (-15.9%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #83,965 | 208 | 0.08 | First available Census row | First available Census row |
| 2010 | #82,908 | 227 | 0.08 | +19 bearers (+9.1%) | Up 1,057 places |
| 2020 | #100,867 | 191 | 0.06 | -36 bearers (-15.9%) | Down 17,959 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 Lochbaum 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 | #82,908 | #100,867 | -21.7% |
| Count | 227 | 191 | -15.9% |
| Per 100K | 0.08 | 0.06 | -20.1% |
Between the 2010 and 2020 Census, the number of Lochbaum bearers went from 227 to 191 (-15.9% change). The surname moved down 17,959 positions in the national ranking, going from #82,908 to #100,867.
FAQ
Name Census estimates that about 219 living Americans carry the surname Lochbaum. Using the current population baseline, that works out to roughly 1 in 1,565,088 residents.
Lochbaum ranks #100,867 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.06 per 100,000 residents, which is about 0 people out of every 100,000.
The raw 2020 Census file counted 191 people with the surname Lochbaum. That is different from the site's living-bearer estimate (219), 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 0.06 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 Lochbaum.
Between 2010 and 2020, the surname Lochbaum went from 227 recorded bearers to 191. That is a decrease of 36 (-15.9%). In the national ranking it fell from #82,908 to #100,867.
Among Census respondents with the surname Lochbaum, the largest self-reported group is White at 91.1%. The next largest groups are Hispanic (2.6%) and Asian/Pacific Islander (2.6%). 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 Lochbaum in the 2020 Census, accounting for 91.1% (174 people in the source table).
Lochbaum appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (91.1%), Hispanic (2.6%), Asian/Pacific Islander (2.6%). 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.
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 Lochbaum (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.
German surname translating to "stream tree" or "brook wood". 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 Lochbaum (0.06 per 100,000) and applies that rate to the current U.S. resident population to estimate how many living Americans have the surname today.
Find out how many people have the surname Lochbaum on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.