2010
#141,140
National surname rank
First available Census row
A Persian surname meaning "son of a respected leader or chieftain".
According to the 2020 US Census Bureau surname tables, roughly 131 Americans carry the last name Kazemzadeh. That puts it at #146,495 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,616,445 residents).
This page is the full Name Census profile for the Kazemzadeh 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
131
1 in 2,616,445
Census rank
#146,495
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
114
very rare in the US
Popularity narrative
The Census Bureau recorded 114 bearers of the surname Kazemzadeh in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 146495th position in the national surname ranking.
Among Census respondents with the surname Kazemzadeh, the largest self-reported group is White at 83.3%. The next largest groups are Hispanic (9.6%) and Two or More Races (3.5%).
Origin
The surname "KAZEMZADEH" originates from Iran and dates back to the 18th century. It is a compound Persian name, with "Kazem" meaning "to restrain" or "to swallow," and "zadeh" meaning "born" or "descendant." The name likely referred to someone who was born into a family with the given name Kazem, or one that practiced restraint.
The earliest known records of the name "KAZEMZADEH" can be found in historical manuscripts and documents from the Qajar Dynasty, which ruled Iran from 1789 to 1925. During this period, the name was primarily concentrated in the regions of Tehran, Isfahan, and Shiraz, where many prominent families bore this surname.
One of the earliest recorded individuals with the name "KAZEMZADEH" was Mirza Mohammad Kazem Kazemzadeh (1782-1849), a renowned poet and calligrapher from Isfahan. His works were widely admired and have been preserved in various literary anthologies from the Qajar era.
Another notable figure was Haji Mirza Hassan Kazemzadeh (1801-1876), a prominent merchant and philanthropist from Tehran. He was known for his philanthropic initiatives, including the construction of several public buildings and educational institutions in the capital city.
In the early 20th century, Mirza Abbas Khan Kazemzadeh (1878-1962) was a influential statesman and diplomat who served as the Iranian ambassador to several European countries, including France and Germany. He played a crucial role in shaping Iran's foreign policy during the tumultuous years of World War I and the subsequent Pahlavi Dynasty.
The name "KAZEMZADEH" also appeared in religious circles, with figures like Ayatollah Seyyed Mohammad Kazem Kazemzadeh (1905-1987), a prominent Shia scholar and author from Qom. His works on Islamic jurisprudence and theology were widely studied in religious seminaries across Iran.
In the literary realm, Sadegh Kazemzadeh (1920-1988) was a renowned Iranian author and playwright. His plays and novels, which often explored social and political themes, earned him widespread acclaim and several prestigious awards during his lifetime.
While the name "KAZEMZADEH" has its roots in ancient Persia, it has since spread to other parts of the world due to migration and diaspora communities. However, the historical records and notable individuals mentioned above primarily pertain to its origins and significance within the Iranian context.
Demographics
Among Census respondents with the surname Kazemzadeh, the largest self-reported group is White at 83.3%. The next largest groups are Hispanic (9.6%) and Two or More Races (3.5%).
The bar chart below shows how Kazemzadeh 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 Kazemzadeh surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Kazemzadeh appears in 2 published Census surname files: 2010, 2020. The cards below show how the name's rank and bearer count changed across each release.
2010
National surname rank
First available Census row
2020
National surname rank
-4 bearers (-3.4%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2010 | #141,140 | 118 | 0.04 | First available Census row | First available Census row |
| 2020 | #146,495 | 114 | 0.04 | -4 bearers (-3.4%) | Down 5,355 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 Kazemzadeh 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 | #141,140 | #146,495 | -3.8% |
| Count | 118 | 114 | -3.4% |
| Per 100K | 0.04 | 0.04 | -4.6% |
Between the 2010 and 2020 Census, the number of Kazemzadeh bearers went from 118 to 114 (-3.4% change). The surname moved down 5,355 positions in the national ranking, going from #141,140 to #146,495.
FAQ
Name Census estimates that about 131 living Americans carry the surname Kazemzadeh. Using the current population baseline, that works out to roughly 1 in 2,616,445 residents.
Kazemzadeh ranks #146,495 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.
The raw 2020 Census file counted 114 people with the surname Kazemzadeh. That is different from the site's living-bearer estimate (131), 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 0.04 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 Kazemzadeh.
Between 2010 and 2020, the surname Kazemzadeh went from 118 recorded bearers to 114. That is a decrease of 4 (-3.4%). In the national ranking it fell from #141,140 to #146,495.
Among Census respondents with the surname Kazemzadeh, the largest self-reported group is White at 83.3%. The next largest groups are Hispanic (9.6%) and Two or More Races (3.5%). 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 Kazemzadeh in the 2020 Census, accounting for 83.3% (95 people in the source table).
Kazemzadeh appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (83.3%), Hispanic (9.6%), Two or More Races (3.5%). 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 Kazemzadeh (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.
A Persian surname meaning "son of a respected leader or chieftain". 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 Kazemzadeh (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.
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.