2000
#143,847
National surname rank
First available Census row
A locational surname referring to a person from Siddall, West Yorkshire.
According to the 2020 US Census Bureau surname tables, roughly 139 Americans carry the last name Syddall. That puts it at #141,309 in the national surname ranking, appearing at a frequency of 0.04 per 100,000 people (about 1 in 2,465,859 residents).
This page is the full Name Census profile for the Syddall 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.
For British records, Name Census UK has a British surname profile for Syddall with 1881 census detail, origin facts and modern UK distribution where available.
Bearers in the US
139
1 in 2,465,859
Census rank
#141,309
2020 decennial data
Per 100,000
0.0
Frequency rate
Recorded bearers
121
very rare in the US
Popularity narrative
The Census Bureau recorded 121 bearers of the surname Syddall in its 2020 decennial surname file. At a rate of 0.04 per 100,000 residents, it holds the 141309th position in the national surname ranking.
Among Census respondents with the surname Syddall, the largest self-reported group is White at 88.4%. The next largest groups are Asian/Pacific Islander (5.0%) and Hispanic (3.3%).
Origin
The surname SYDDALL has its origins in the northern English counties of Yorkshire and Lancashire, dating back to the late medieval period around the 13th-14th centuries. It is believed to have derived from the Old English word "syddel," which referred to a shallow, muddy place or a marshy area. This suggests that the name may have been initially used as a locational surname, denoting someone who lived near or came from a marshy region.
Early records show variations in the spelling of the name, including Syddall, Syddell, Siddall, and Siddell. One of the earliest known references to the name can be found in the Yorkshire Poll Tax returns of 1379, where a certain Robert Syddell is mentioned. Another early record is the Lancashire Wills of 1548, which includes the name of Christopher Siddall.
The SYDDALL surname has been associated with various places in northern England, such as Siddal, a district in Halifax, West Yorkshire, and Siddal Moor, near Chipping in Lancashire. These place names likely share a common origin with the surname, further reinforcing the locational connection.
Throughout history, several notable individuals have borne the SYDDALL surname. One of the earliest was John Siddall (c. 1500-1590), a prominent English merchant and member of the Worshipful Company of Mercers in London. Another notable figure was Michael Siddall (1823-1888), a British trade unionist and co-founder of the Amalgamated Society of Engineers.
Other individuals with this surname include:
1. Henry Siddall (1808-1872), an English landscape painter known for his depictions of Yorkshire scenery.
2. Osbert Syddall (1892-1953), a British army officer who served in World War I and later became a celebrated artist and etcher.
3. Mary Siddall (1855-1936), an English novelist and short story writer, best known for her work "The Household of Sir Thomas More."
4. Thomas Syddall (1624-1668), an English clergyman and author of several religious works, including "The Blind Man's Meditations."
5. Richard Siddall (1849-1924), a prominent English industrialist and philanthropist who founded the Siddall & Bateman engineering firm in Leeds.
The SYDDALL surname has a rich history rooted in the northern counties of England, with its origins dating back to the medieval era. Its connection to marshy or muddy areas has been reflected in various place names, and the name has been borne by notable individuals across different fields throughout the centuries.
Demographics
Among Census respondents with the surname Syddall, the largest self-reported group is White at 88.4%. The next largest groups are Asian/Pacific Islander (5.0%) and Hispanic (3.3%).
The bar chart below shows how Syddall 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 Syddall surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Syddall 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
+27 bearers (+25.5%)
2020
National surname rank
-12 bearers (-9.0%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #143,847 | 106 | 0.04 | First available Census row | First available Census row |
| 2010 | #128,249 | 133 | 0.05 | +27 bearers (+25.5%) | Up 15,598 places |
| 2020 | #141,309 | 121 | 0.04 | -12 bearers (-9.0%) | Down 13,060 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 Syddall 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 | #128,249 | #141,309 | -10.2% |
| Count | 133 | 121 | -9.0% |
| Per 100K | 0.05 | 0.04 | -19.0% |
Between the 2010 and 2020 Census, the number of Syddall bearers went from 133 to 121 (-9.0% change). The surname moved down 13,060 positions in the national ranking, going from #128,249 to #141,309.
FAQ
Name Census estimates that about 139 living Americans carry the surname Syddall. Using the current population baseline, that works out to roughly 1 in 2,465,859 residents.
Syddall ranks #141,309 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 121 people with the surname Syddall. That is different from the site's living-bearer estimate (139), 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 Syddall.
Between 2010 and 2020, the surname Syddall went from 133 recorded bearers to 121. That is a decrease of 12 (-9.0%). In the national ranking it fell from #128,249 to #141,309.
Among Census respondents with the surname Syddall, the largest self-reported group is White at 88.4%. The next largest groups are Asian/Pacific Islander (5.0%) and Hispanic (3.3%). 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 Syddall in the 2020 Census, accounting for 88.4% (107 people in the source table).
Syddall appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (88.4%), Asian/Pacific Islander (5.0%), Hispanic (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.
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 Syddall (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 locational surname referring to a person from Siddall, West Yorkshire. 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 Syddall (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.
For a quick modern take, check how common the surname Syddall is on our sister site HowManyOfMe.org.