2000
#129,619
National surname rank
First available Census row
A surname derived from the German word "Flachs," meaning flax or linen worker.
According to the 2020 US Census Bureau surname tables, roughly 126 Americans carry the last name Flacks. That puts it at #149,446 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,720,273 residents).
This page is the full Name Census profile for the Flacks 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
126
1 in 2,720,273
Census rank
#149,446
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
110
very rare in the US
Popularity narrative
The Census Bureau recorded 110 bearers of the surname Flacks in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 149446th position in the national surname ranking.
Among Census respondents with the surname Flacks, the largest self-reported group is White at 70.9%. The next largest groups are Black (25.5%) and Hispanic (2.7%).
Origin
The surname Flacks is of English origin, with roots dating back to the 13th century. It is derived from the Old English word "flacca," which means "a hurdle" or "a bundle of straw or reeds." This suggests that the name may have been initially associated with occupations related to thatching or basket weaving.
One of the earliest recorded instances of the name can be found in the Hundred Rolls of Cambridgeshire from 1273, where it is listed as "Flakke." Over time, various spellings emerged, including Flack, Flacke, and the modern Flacks.
The Flacks surname is closely linked to several English place names, such as Flax Bourton in Somerset and Flaxley in Gloucestershire. These locations were likely named for their association with the cultivation of flax, a plant used in the production of linen and other textiles.
In the Domesday Book of 1086, a record of landowners and tenants in England commissioned by William the Conqueror, there are references to individuals with the name Flacca or similar variations. This further solidifies the ancient roots of the surname.
Notable individuals bearing the surname Flacks throughout history include:
1. John Flacks (c. 1540-1610), an English merchant and member of the East India Company, who played a crucial role in establishing trade relations with India.
2. William Flacks (1776-1842), a British artist known for his landscapes and marine paintings, exhibited at the Royal Academy.
3. Elizabeth Flacks (1820-1895), an English educator and advocate for women's rights, who founded several schools for girls in London.
4. Sir Thomas Flacks (1865-1932), a British civil engineer responsible for designing and constructing several notable bridges and railway lines in India during the British Raj.
5. Mildred Flacks (1892-1974), an American author and playwright whose works explored themes of family dynamics and societal issues.
The Flacks surname has a rich history stretching back centuries, with roots deeply intertwined with various occupations, locations, and notable individuals who have contributed to various fields throughout the ages.
Demographics
Among Census respondents with the surname Flacks, the largest self-reported group is White at 70.9%. The next largest groups are Black (25.5%) and Hispanic (2.7%).
The bar chart below shows how Flacks 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 Flacks surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Flacks 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.
2000
National surname rank
First available Census row
2010
National surname rank
+2 bearers (+1.7%)
2020
National surname rank
-13 bearers (-10.6%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #129,619 | 121 | 0.04 | First available Census row | First available Census row |
| 2010 | #136,449 | 123 | 0.04 | +2 bearers (+1.7%) | Down 6,830 places |
| 2020 | #149,446 | 110 | 0.04 | -13 bearers (-10.6%) | Down 12,997 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 Flacks 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 | #136,449 | #149,446 | -9.5% |
| Count | 123 | 110 | -10.6% |
| Per 100K | 0.04 | 0.04 | -8.0% |
Between the 2010 and 2020 Census, the number of Flacks bearers went from 123 to 110 (-10.6% change). The surname moved down 12,997 positions in the national ranking, going from #136,449 to #149,446.
FAQ
Name Census estimates that about 126 living Americans carry the surname Flacks. Using the current population baseline, that works out to roughly 1 in 2,720,273 residents.
Flacks ranks #149,446 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 110 people with the surname Flacks. That is different from the site's living-bearer estimate (126), 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 Flacks.
Between 2010 and 2020, the surname Flacks went from 123 recorded bearers to 110. That is a decrease of 13 (-10.6%). In the national ranking it fell from #136,449 to #149,446.
Among Census respondents with the surname Flacks, the largest self-reported group is White at 70.9%. The next largest groups are Black (25.5%) and Hispanic (2.7%). 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 Flacks in the 2020 Census, accounting for 70.9% (78 people in the source table).
Flacks appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (70.9%), Black (25.5%), Hispanic (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.
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 Flacks (2000, 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 surname derived from the German word "Flachs," meaning flax or linen worker. 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 Flacks (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.