2000
#133,114
National surname rank
Recorded bearers 117
First available Census row
Per 100,000 0.04
Very Rare Last name
Andrejack
A Serbian surname derived from the given name "Andrej" meaning "manly".
According to the 2020 US Census Bureau surname tables, roughly 117 Americans carry the last name Andrejack. That puts it at #154,755 in the national surname ranking, appearing at a frequency of 0.03 per 100,000 people (about 1 in 2,929,524 residents).
This page is the full Name Census profile for the Andrejack 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
117
1 in 2,929,524
Census rank
#154,755
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
102
very rare in the US
Popularity narrative
The Census Bureau recorded 102 bearers of the surname Andrejack in its 2020 decennial surname file. At a rate of 0.03 per 100,000 residents, it holds the 154755th position in the national surname ranking.
Among Census respondents with the surname Andrejack, the largest self-reported group is White at 94.1%. The next largest groups are Hispanic (5.9%).
Origin
Meaning and origin of Andrejack
The surname ANDREJACK is of Slavic origin, tracing its roots back to the regions of Eastern Europe, particularly Poland and Ukraine, during the medieval period around the 13th century. The name is believed to be derived from the Slavic masculine given name "Andrej," a variant of the Greek name "Andreas," meaning "manly" or "virile."
One of the earliest recorded instances of the ANDREJACK surname can be found in a manuscript dated 1487, which mentions a nobleman named Andrejack Kowalski residing in the city of Krakow, Poland. This document suggests that the surname may have originated as a patronymic, denoting "son of Andrej," as was common practice during that era.
In the 16th century, the ANDREJACK name appeared in several historical records from the region of Galicia, which was then part of the Kingdom of Poland. These records include land deeds, tax rolls, and parish registers, indicating the surname's presence among both noble and peasant families.
During the 17th century, a notable figure bearing the ANDREJACK surname was Jan ANDREJACK (1610-1678), a Polish military commander who fought in the Polish-Swedish War. His exploits were documented in contemporary chronicles, solidifying the ANDREJACK name's association with valor and military service.
Another prominent individual with this surname was Katarzyna ANDREJACK (1738-1812), a renowned Ukrainian poet and playwright who wrote extensively in the Polish language. Her works were widely celebrated during her lifetime and are still studied in literary circles today.
The 19th century saw the ANDREJACK surname spread beyond Eastern Europe, with several families emigrating to North America. One such individual was Stefan ANDREJACK (1822-1894), a Polish immigrant who settled in Chicago and became a successful businessman, contributing to the city's growth during the industrial era.
As the centuries passed, the ANDREJACK surname evolved through various spellings, such as Andrejaczyk, Andrejacki, and Andrejaczek, reflecting regional linguistic variations and adaptations. However, the core meaning and origins of the name have remained largely unchanged, serving as a testament to the rich cultural heritage of Slavic nomenclature.
Demographics
Ancestry and ethnicity for Andrejack
Among Census respondents with the surname Andrejack, the largest self-reported group is White at 94.1%. The next largest groups are Hispanic (5.9%).
The bar chart below shows how Andrejack 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 Andrejack surname at the time of the 2020 Census, not any inherent property of the name itself.
- White94.1% · 96
- Hispanic or Latino5.9% · 6
Timeline
Historical Census data for Andrejack
Andrejack 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
#142,108
National surname rank
Recorded bearers 117
+0 bearers (+0.0%)
Per 100,000 0.04
Rank movement Down 8,994 places
2020
#154,755
National surname rank
Recorded bearers 102
-15 bearers (-12.8%)
Per 100,000 0.03
Rank movement Down 12,647 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #133,114 | 117 | 0.04 | First available Census row | First available Census row |
| 2010 | #142,108 | 117 | 0.04 | +0 bearers (+0.0%) | Down 8,994 places |
| 2020 | #154,755 | 102 | 0.03 | -15 bearers (-12.8%) | Down 12,647 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 Andrejack 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 | #142,108 | #154,755 | -8.9% |
| Count | 117 | 102 | -12.8% |
| Per 100K | 0.04 | 0.03 | -14.7% |
Between the 2010 and 2020 Census, the number of Andrejack bearers went from 117 to 102 (-12.8% change). The surname moved down 12,647 positions in the national ranking, going from #142,108 to #154,755.
FAQ
Andrejack surname: questions and answers
How many people in the U.S. have the surname Andrejack?
Name Census estimates that about 117 living Americans carry the surname Andrejack. Using the current population baseline, that works out to roughly 1 in 2,929,524 residents.
How common is Andrejack?
Andrejack ranks #154,755 in the 2020 Census surname tables and is classified on this site as "Very Rare." The Census recorded the name at a frequency of 0.03 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 102 people with the surname Andrejack. That is different from the site's living-bearer estimate (117), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.03 per 100,000 actually mean?
It is the Census Bureau's normalized frequency measure. A rate of 0.03 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 Andrejack.
Has Andrejack become more or less common over time?
Between 2010 and 2020, the surname Andrejack went from 117 recorded bearers to 102. That is a decrease of 15 (-12.8%). In the national ranking it fell from #142,108 to #154,755.
What does the Census say about the background of Andrejack?
Among Census respondents with the surname Andrejack, the largest self-reported group is White at 94.1%. The next largest groups are Hispanic (5.9%). 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 Andrejack in the 2020 Census, accounting for 94.1% (96 people in the source table).
What is the full ancestry breakdown?
Andrejack appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (94.1%), Hispanic (5.9%). 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.
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 Andrejack (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 Andrejack mean?
A Serbian surname derived from the given name "Andrej" meaning "manly". 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 Andrejack (0.03 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 people are called Andrejack?
If you just want to know how many Americans have the surname Andrejack, HowManyOfMe.org gives you the headline number in one glance.