2000
#82,691
National surname rank
Recorded bearers 212
First available Census row
Per 100,000 0.08
Very Rare Last name
Moock
A German surname derived from the Slavic word "mok" meaning wet or damp.
According to the 2020 US Census Bureau surname tables, roughly 294 Americans carry the last name Moock. That puts it at #80,054 in the national surname ranking, appearing at a frequency of 0.09 per 100,000 people (about 1 in 1,165,831 residents).
This page is the full Name Census profile for the Moock 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
294
1 in 1,165,831
Census rank
#80,054
2020 decennial data
Per 100,000
0.1
Frequency rate
Recorded bearers
256
very rare in the US
Popularity narrative
The Census Bureau recorded 256 bearers of the surname Moock in its 2020 decennial surname file. At a rate of 0.09 per 100,000 residents, it holds the 80054th position in the national surname ranking.
Among Census respondents with the surname Moock, the largest self-reported group is White at 88.3%. The next largest groups are Asian/Pacific Islander (4.7%) and Black (2.7%).
Origin
Meaning and origin of Moock
The surname MOOCK is believed to have its origins in Germany, with records dating back to the 16th century. The name is thought to be derived from the Old German word "moc," which means "frog" or "toad." It is possible that the name was originally given as a nickname to someone who lived near a marshy area or had some physical resemblance to a frog.
One of the earliest recorded instances of the surname MOOCK can be found in the village of Moochen, located in the state of Bavaria, Germany. In the year 1567, a farmer named Hans Moock was listed in the village records, indicating that the name had already been established in the region.
During the 17th and 18th centuries, the name MOOCK began to spread to other parts of Germany, as well as to neighboring countries such as Austria and Switzerland. In 1672, a man named Johann Moock was recorded as a merchant in the city of Hamburg, which suggests that the name had gained some prominence in the urban centers of northern Germany.
One notable figure bearing the surname MOOCK was Karl Friedrich Moock, born in 1806 in the town of Görlitz, Saxony. He was a respected educator and author, known for his contributions to the field of pedagogy. His most famous work, "Lehrbuch der Erziehung und des Unterrichts" (Textbook of Education and Instruction), published in 1844, was widely used in teacher training institutions throughout Germany.
Another individual of note was Wilhelm Moock, born in 1838 in the city of Berlin. He was a prominent architect and urban planner, responsible for the design of several notable buildings and public spaces in Berlin during the late 19th century, including the Charlottenburg Palace and the Tiergarten park.
In the early 20th century, the MOOCK surname also found its way to the United States through immigration. One such immigrant was Heinrich Moock, who arrived in New York City from Hamburg in 1912. He went on to establish a successful business importing and exporting goods between the United States and Germany.
Other notable individuals with the surname MOOCK include Else Moock, a German actress born in 1925, known for her roles in several popular films of the 1950s and 1960s, and Ernst Moock, a German-American physicist born in 1901, who made significant contributions to the field of nuclear physics during his career.
Demographics
Ancestry and ethnicity for Moock
Among Census respondents with the surname Moock, the largest self-reported group is White at 88.3%. The next largest groups are Asian/Pacific Islander (4.7%) and Black (2.7%).
The bar chart below shows how Moock 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 Moock surname at the time of the 2020 Census, not any inherent property of the name itself.
- White88.3% · 226
- Asian and Pacific Islander4.7% · 12
- Black or African American2.7% · 7
- Hispanic or Latino2.3% · 6
- Two or more races2.0% · 5
Timeline
Historical Census data for Moock
Moock 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
#81,458
National surname rank
Recorded bearers 232
+20 bearers (+9.4%)
Per 100,000 0.08
Rank movement Up 1,233 places
2020
#80,054
National surname rank
Recorded bearers 256
+24 bearers (+10.3%)
Per 100,000 0.09
Rank movement Up 1,404 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #82,691 | 212 | 0.08 | First available Census row | First available Census row |
| 2010 | #81,458 | 232 | 0.08 | +20 bearers (+9.4%) | Up 1,233 places |
| 2020 | #80,054 | 256 | 0.09 | +24 bearers (+10.3%) | Up 1,404 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 Moock 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 | #81,458 | #80,054 | 1.7% |
| Count | 232 | 256 | 10.3% |
| Per 100K | 0.08 | 0.09 | 7.1% |
Between the 2010 and 2020 Census, the number of Moock bearers went from 232 to 256 (+10.3% change). The surname moved up 1,404 positions in the national ranking, going from #81,458 to #80,054.
FAQ
Moock surname: questions and answers
How many people in the U.S. have the surname Moock?
Name Census estimates that about 294 living Americans carry the surname Moock. Using the current population baseline, that works out to roughly 1 in 1,165,831 residents.
How common is Moock?
Moock ranks #80,054 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.09 per 100,000 residents, which is about 0 people out of every 100,000.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 256 people with the surname Moock. That is different from the site's living-bearer estimate (294), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.09 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.09 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 Moock.
Has Moock become more or less common over time?
Between 2010 and 2020, the surname Moock went from 232 recorded bearers to 256. That is an increase of 24 (+10.3%). In the national ranking it rose from #81,458 to #80,054.
What does the Census say about the background of Moock?
Among Census respondents with the surname Moock, the largest self-reported group is White at 88.3%. The next largest groups are Asian/Pacific Islander (4.7%) and Black (2.7%). 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 Moock in the 2020 Census, accounting for 88.3% (226 people in the source table).
What is the full ancestry breakdown?
Moock appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.3%), Asian/Pacific Islander (4.7%), Black (2.7%). 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 Moock (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 Moock mean?
A German surname derived from the Slavic word "mok" meaning wet or damp. 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 Moock (0.09 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 common is the surname Moock?
You can see how many Americans have the surname Moock on our sister site HowManyOfMe.org — same data roots, lighter UI.