2000
#117,538
National surname rank
Recorded bearers 137
First available Census row
Per 100,000 0.05
Very Rare Last name
Daz
A surname potentially originating from the Turkish word "dāz" meaning craggy or cliff-like.
According to the 2020 US Census Bureau surname tables, roughly 131 Americans carry the last name Daz. 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 Daz 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 Daz 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 Daz, the largest self-reported group is White at 40.4%. The next largest groups are Hispanic (37.7%) and Asian/Pacific Islander (15.8%).
Origin
Meaning and origin of Daz
The surname DAZ originated in the region of Daz, a small village located in the province of Normandy, France, during the medieval period. It is believed to have derived from the Old French word "daz," meaning "valley" or "dale," suggesting that the name may have been initially used to identify someone who resided in or near a valley.
One of the earliest recorded instances of the name can be found in the Domesday Book, a comprehensive survey of landholdings and population commissioned by William the Conqueror in 1086. The entry mentions a certain Richard de Daz, who held lands in the county of Norfolk, England.
As the name spread across Europe, variations in spelling emerged, such as Daze, Dasse, and Dasse. These variations likely arose due to regional dialects and the inconsistencies in record-keeping during that time period.
Notable individuals bearing the surname DAZ throughout history include:
1. Jean Daz (1490-1554), a French merchant and explorer who established trade routes between France and the West Indies in the early 16th century.
2. Maximilian Daz (1580-1642), a German artist and engraver renowned for his intricate woodcuts depicting religious scenes and landscapes.
3. Isabelle Daz (1670-1728), a French botanist and herbalist who made significant contributions to the study of medicinal plants and their applications.
4. Philip Daz (1795-1873), an English engineer and inventor credited with developing one of the earliest prototypes of the steam-powered locomotive.
5. Emilia Daz (1860-1924), a Spanish writer and feminist activist who campaigned for women's rights and equal education opportunities in the late 19th century.
Furthermore, the name DAZ can be found in several place names across Europe, such as Dazville, a small town in the Champagne region of France, and Dazburg, a village in the German state of Bavaria. These place names likely originated from individuals bearing the surname DAZ who settled in those areas.
Demographics
Ancestry and ethnicity for Daz
Among Census respondents with the surname Daz, the largest self-reported group is White at 40.4%. The next largest groups are Hispanic (37.7%) and Asian/Pacific Islander (15.8%).
The bar chart below shows how Daz 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 Daz surname at the time of the 2020 Census, not any inherent property of the name itself.
- White40.4% · 46
- Hispanic or Latino37.7% · 43
- Asian and Pacific Islander15.8% · 18
- Black or African American3.5% · 4
- Two or more races2.6% · 3
Timeline
Historical Census data for Daz
Daz 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
#109,258
National surname rank
Recorded bearers 162
+25 bearers (+18.2%)
Per 100,000 0.05
Rank movement Up 8,280 places
2020
#146,495
National surname rank
Recorded bearers 114
-48 bearers (-29.6%)
Per 100,000 0.04
Rank movement Down 37,237 places
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #117,538 | 137 | 0.05 | First available Census row | First available Census row |
| 2010 | #109,258 | 162 | 0.05 | +25 bearers (+18.2%) | Up 8,280 places |
| 2020 | #146,495 | 114 | 0.04 | -48 bearers (-29.6%) | Down 37,237 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 Daz 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 | #109,258 | #146,495 | -34.1% |
| Count | 162 | 114 | -29.6% |
| Per 100K | 0.05 | 0.04 | -23.7% |
Between the 2010 and 2020 Census, the number of Daz bearers went from 162 to 114 (-29.6% change). The surname moved down 37,237 positions in the national ranking, going from #109,258 to #146,495.
FAQ
Daz surname: questions and answers
How many people in the U.S. have the surname Daz?
Name Census estimates that about 131 living Americans carry the surname Daz. Using the current population baseline, that works out to roughly 1 in 2,616,445 residents.
How common is Daz?
Daz 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.
How many people with this surname were counted in the Census?
The raw 2020 Census file counted 114 people with the surname Daz. 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.
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 Daz.
Has Daz become more or less common over time?
Between 2010 and 2020, the surname Daz went from 162 recorded bearers to 114. That is a decrease of 48 (-29.6%). In the national ranking it fell from #109,258 to #146,495.
What does the Census say about the background of Daz?
Among Census respondents with the surname Daz, the largest self-reported group is White at 40.4%. The next largest groups are Hispanic (37.7%) and Asian/Pacific Islander (15.8%). 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 Daz in the 2020 Census, accounting for 40.4% (46 people in the source table).
What is the full ancestry breakdown?
Daz appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (40.4%), Hispanic (37.7%), Asian/Pacific Islander (15.8%). 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 Daz (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 Daz mean?
A surname potentially originating from the Turkish word "dāz" meaning craggy or cliff-like. 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 Daz (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 common is the surname Daz?
Find out how many people have the surname Daz on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.