Recorded 1916–2025 · United States
Sunday was most popular in 2025, when 290 American babies were given the name — ranking #1,735 that year. In 2025 it ranked #1,735, with 290 births. Across 1880–2025 the Social Security Administration has recorded 3,317 people named Sunday.
Sunday first appears in Social Security Administration records in 1916, which makes it about 109 years old as a recorded American name. It has been recorded in 92 of the 110 years since.
The Social Security Administration has recorded 3,317 American births named Sunday between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 3,090 are estimated to be alive today.
290 American babies were named Sunday in 2025, ranking #1,735 that year.
Sunday is rising. Across 2021–2025 it averaged 194 births a year, against 39 a year across 2011–2015 — a change of +396% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Across the whole record Sunday is a girl’s name — 96.4% of the 3,317 Americans given it were girls and 3.6% were boys. In births since 2016 it is 95% girls and 5% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
Roughly 3,090 Americans named Sunday are alive today — 93% of everyone ever recorded with the name. The median is 20 years old, and half are between 4 and 56. That is a wide band, the mark of a name in steady use across generations rather than a passing fashion.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
How much more common the name is in each state than across the country as a whole.
See Sunday on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org