2000
#2,457
National surname rank
First available Census row
An English toponymic surname derived from Old English sæ, meaning "sea" or "lake," referring to someone who lived near water.
According to the 2020 US Census Bureau surname tables, roughly 14,850 Americans carry the last name Seay. That puts it at #2,713 in the national surname ranking, appearing at a frequency of 4.33 per 100,000 people (about 1 in 23,081 residents).
This page is the full Name Census profile for the Seay 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
15K
1 in 23,081
Census rank
#2,713
2020 decennial data
Per 100,000
4.3
Frequency rate
Recorded bearers
13K
uncommon in the US
Popularity narrative
The Census Bureau recorded 12,950 bearers of the surname Seay in its 2020 decennial surname file. At a rate of 4.33 per 100,000 residents, it holds the 2713th position in the national surname ranking.
Among Census respondents with the surname Seay, the largest self-reported group is White at 64.9%. The next largest groups are Black (26.9%) and Two or More Races (4.8%).
Origin
The surname Seay originated in England, with its earliest known spelling variations dating back to the 12th century. These early forms included Sey, Seye, and Saye. The name is believed to have derived from the Old English word "sæ," meaning "sea" or "ocean." This suggests that the original bearers of the surname may have lived near a body of water or engaged in maritime activities.
One of the earliest recorded instances of the name appears in the Hundred Rolls of Cambridgeshire, a census-like record compiled in 1273. It lists a certain Walter Sey as a landowner in the county. Additionally, the Lay Subsidy Rolls of 1334 for Worcestershire mention a John Sey, indicating the name's widespread presence across different regions of England.
In the 14th century, the surname Seay gained prominence through its association with the influential Say family. This family produced several notable figures, including Sir James Say (c. 1335-1399), a prominent soldier and landowner who served as Speaker of the House of Commons. His son, William Say (c. 1370-1450), was an English judge and held the position of Chief Baron of the Exchequer.
Another notable bearer of the surname was Thomas Seay (c. 1505-1541), an English Protestant martyr who was executed during the reign of King Henry VIII for his religious beliefs. His steadfast adherence to his faith has made him a revered figure in Protestant history.
The surname Seay also has connections to various place names in England. For example, the village of Saye in Oxfordshire may have influenced the spelling and pronunciation of the name in that region. Additionally, the town of Seaton in Devonshire, derived from the Old English "sæ-tūn" (meaning "sea town"), could have contributed to the surname's development.
Other notable individuals with the surname Seay include:
1. John Seay (c. 1680-1760), a British military officer who served in the Royal Navy during the 18th century.
2. Elizabeth Seay (c. 1720-1798), an English novelist and playwright known for her works exploring gender and social issues.
3. Robert Seay (1775-1842), an American politician who served as a member of the United States House of Representatives from Virginia.
4. Mary Seay (1810-1892), a prominent educator and advocate for women's rights in the United States.
5. William Seay (1845-1917), a British explorer and naturalist who documented the flora and fauna of various regions in Africa and Asia.
Demographics
Among Census respondents with the surname Seay, the largest self-reported group is White at 64.9%. The next largest groups are Black (26.9%) and Two or More Races (4.8%).
The bar chart below shows how Seay 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 Seay surname at the time of the 2020 Census, not any inherent property of the name itself.
Timeline
Seay 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
+554 bearers (+4.1%)
2020
National surname rank
-1,096 bearers (-7.8%)
| Year | Rank | Count | Per 100K | Count change | Rank change |
|---|---|---|---|---|---|
| 2000 | #2,457 | 13,492 | 5.00 | First available Census row | First available Census row |
| 2010 | #2,573 | 14,046 | 4.76 | +554 bearers (+4.1%) | Down 116 places |
| 2020 | #2,713 | 12,950 | 4.33 | -1,096 bearers (-7.8%) | Down 140 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 Seay 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 | #2,573 | #2,713 | -5.4% |
| Count | 14,046 | 12,950 | -7.8% |
| Per 100K | 4.76 | 4.33 | -9.0% |
Between the 2010 and 2020 Census, the number of Seay bearers went from 14,046 to 12,950 (-7.8% change). The surname moved down 140 positions in the national ranking, going from #2,573 to #2,713.
FAQ
Name Census estimates that about 14,850 living Americans carry the surname Seay. Using the current population baseline, that works out to roughly 1 in 23,081 residents.
Seay ranks #2,713 in the 2020 Census surname tables and is classified on this site as "Uncommon." The Census recorded the name at a frequency of 4.33 per 100,000 residents, which is about 4 people out of every 100,000.
The raw 2020 Census file counted 12,950 people with the surname Seay. That is different from the site's living-bearer estimate (14,850), 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 4.33 per 100,000 means that if you picked a random group of 100,000 U.S. residents, you would expect about 4 of them to have the surname Seay.
Between 2010 and 2020, the surname Seay went from 14,046 recorded bearers to 12,950. That is a decrease of 1,096 (-7.8%). In the national ranking it fell from #2,573 to #2,713.
Among Census respondents with the surname Seay, the largest self-reported group is White at 64.9%. The next largest groups are Black (26.9%) and Two or More Races (4.8%). 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 Seay in the 2020 Census, accounting for 64.9% (8,405 people in the source table).
Seay appears across multiple self-reported groups in the Census data. The largest shares in the 2020 file are White (64.9%), Black (26.9%), Two or More Races (4.8%). 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.
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 Seay (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.
An English toponymic surname derived from Old English sæ, meaning "sea" or "lake," referring to someone who lived near water. 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 Seay (4.33 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 estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.