2000
#142,819
National surname rank
Recorded bearers 107
First available Census row
Per 100,000 0.04
Very Rare Last name
Martynowicz
A Polish surname derived from the personal name "Martyn", meaning son of Martin.
According to the 2020 US Census Bureau surname tables, roughly 138 Americans carry the last name Martynowicz. That puts it at #142,049 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,483,727 residents).
This page is the full Name Census profile for the Martynowicz 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
138
1 in 2,483,727
Census rank
#142,049
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
120
very rare in the US
Popularity narrative
The Census Bureau recorded 120 bearers of the surname Martynowicz in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 142049th position in the national surname ranking.
Among Census respondents with the surname Martynowicz, the largest self-reported group is White at 85.8%. The next largest groups are Hispanic (6.7%) and Two or More Races (3.3%).
Origin
Meaning and origin of Martynowicz
The surname Martynowicz is of Polish origin, originating in the late medieval period around the 14th or 15th century. It is a patronymic surname, derived from the Polish given name Martyn, which is a variant of the name Martin. The suffix "-owicz" denotes "son of" in Polish.
The name Martyn itself has its roots in the Latin name Martinus, which is believed to be derived from the name of the Roman god Mars, the god of war. This suggests that the name Martynowicz may have been associated with individuals or families involved in military or warrior activities in its early history.
One of the earliest recorded instances of the surname Martynowicz can be found in the Polish town of Bydgoszcz, where it appears in municipal records from the 16th century. These records document a family of landowners and merchants who bore the surname.
In the 17th century, the name Martynowicz gained prominence in the Polish nobility, with several individuals of this surname holding positions of influence and power. Notably, Jan Martynowicz (1575-1642) was a prominent Polish military leader who served as a Field Crown Hetman, one of the highest military ranks in the Polish-Lithuanian Commonwealth.
Another notable figure with the surname Martynowicz was Stanisław Martynowicz (1630-1694), a Polish nobleman and landowner who played a significant role in the defense of the city of Lwów (now Lviv, Ukraine) during the Turkish siege of 1672-1673.
Moving into the 18th century, the name Martynowicz was associated with several influential families in the Podlasie region of eastern Poland, where they held land and estates. One example is the Martynowicz family of Białystok, whose ancestral estate was located in the village of Turośń Kościelna.
In the 19th century, the name Martynowicz gained recognition in the field of literature and education. Aleksander Martynowicz (1808-1878) was a Polish writer, educator, and translator who made significant contributions to the development of Polish literature and language education.
Throughout its history, the surname Martynowicz has been subject to various spelling variations, including Martynovicz, Martynovych, and Martynovich, reflecting the linguistic and cultural influences of different regions and time periods.
Demographics
Ancestry and ethnicity for Martynowicz
Among Census respondents with the surname Martynowicz, the largest self-reported group is White at 85.8%. The next largest groups are Hispanic (6.7%) and Two or More Races (3.3%).
The bar chart below shows how Martynowicz 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 Martynowicz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White85.8% · 103
- Hispanic or Latino6.7% · 8
- Two or more races3.3% · 4
- Black or African American2.5% · 3
- Asian and Pacific Islander0.8% · 1
- American Indian and Alaska Native0.8% · 1
Timeline
Historical Census data for Martynowicz
Martynowicz 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
#149,395
National surname rank
Recorded bearers 110
+3 bearers (+2.8%)
Per 100,000 0.04
Rank movement Down 6,576 places
2020
#142,049
National surname rank
Recorded bearers 120
+10 bearers (+9.1%)
Per 100,000 0.04
Rank movement Up 7,346 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #142,819 | 107 | 0.04 | First available Census row | First available Census row |
| 2010 | #149,395 | 110 | 0.04 | +3 bearers (+2.8%) | Down 6,576 places |
| 2020 | #142,049 | 120 | 0.04 | +10 bearers (+9.1%) | Up 7,346 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 Martynowicz 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 | #149,395 | #142,049 | 4.9% |
| Count | 110 | 120 | 9.1% |
| Per 100K | 0.04 | 0.04 | 0.4% |
Between the 2010 and 2020 Census, the number of Martynowicz bearers went from 110 to 120 (+9.1% change). The surname moved up 7,346 positions in the national ranking, going from #149,395 to #142,049.
FAQ
Martynowicz surname: questions and answers
How many people in the U.S. have the surname Martynowicz?
Name Census estimates that about 138 living Americans carry the surname Martynowicz. Using the current population baseline, that works out to roughly 1 in 2,483,727 residents.
How common is Martynowicz?
Martynowicz ranks #142,049 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.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 120 people with the surname Martynowicz. That is different from the site's living-bearer estimate (138), which projects the surname's present-day count by applying the Census frequency rate to the current U.S. population.
What does 0.04 per 100,000 actually mean?
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 Martynowicz.
Has Martynowicz become more or less common over time?
Between 2010 and 2020, the surname Martynowicz went from 110 recorded bearers to 120. That is an increase of 10 (+9.1%). In the national ranking it rose from #149,395 to #142,049.
What does the Census say about the background of Martynowicz?
Among Census respondents with the surname Martynowicz, the largest self-reported group is White at 85.8%. The next largest groups are Hispanic (6.7%) and Two or More Races (3.3%). 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 Martynowicz in the 2020 Census, accounting for 85.8% (103 people in the source table).
What is the full ancestry breakdown?
Martynowicz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (85.8%), Hispanic (6.7%), Two or More Races (3.3%). 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 Martynowicz (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 Martynowicz mean?
A Polish surname derived from the personal name "Martyn", meaning son of Martin. 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 Martynowicz (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.
How many people are called Martynowicz?
Find out how many people have the last name Martynowicz on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.