Sion
#2,980 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Sion has been given to 883 babies in the U.S. since 1912. In 2025 it ranked #2,980 of 13,926 boys’ names in use. Its peak year was 2022, with 43 recorded. It's used for both sexes: 90% boys, 10% girls all-time.
Babies named Sion, 2025
1 in 78,900
Sion over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Sion over time
In 2025, Sion went to 0% girls and 100% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Sion?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 78,900
- 42 of 3,315,165 births
- Among boys only
- 1 in 40,700
- <0.01% of boys
- Rank, 2025
- #2,980
- of 13,926 boys’ names in use
- Coin-flip room size
- 54,713 kids
- Even odds of a second one
Where Sion sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 54,713 children born in 2025 and it's an even bet that one of them is another Sion. In a class of 30 the chance is Under 1%.
When Sions were born
Half of everyone ever recorded as Sion was born before 2012 — so the typical Sion is around 13 today.
- Biggest decade
- 2010s
- 30.2% of all use
- Born in the last 25 years
- 79.8%
- A modern name
- Recorded since 1950
- 778
- People you could plausibly meet
2010s — 30.2% of all recorded uses (241).
Is Sion rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- +697
- Places climbed
- Rank vs 5 years ago
- +142
- Places climbed
- Rank vs 10 years ago
- +1,547
- Places climbed
- Births vs 10 years ago
- 1.91×
- More babies than then
- Share of its own peak
- 97.7%
- Peak was 2022 (43)
- Years since peak
- 3
- Years
- Year-to-year steadiness
- Shifting
- 21.1% average annual change
Spellings of Sion
Sion is not the most common spelling — Sean is, with 24.9% against Sion's 0.05%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Sion is used
Across 1910–2025, Sion was most concentrated in California — about 1 in — boys, against 1 in 695,159 across all states with data. It was least common in Texas (1 in —).
Most concentrated
- 1California1 in —
- 2Florida1 in —
- 3Georgia1 in —
- 4New York1 in —
- 5Texas1 in —
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Sion has too little recent state data to map, so this covers all years from 1910.
Sion around the world
Where Sion ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales1996–2025#2,014in 2025
- Scotland2003–2011#544in 2011
- Ireland1994–1994#342in 1994
- France1949–2023#7,005in 2023
- Canada2015–2024#3,231in 2024
- South Australia1967–1987#464in 1987
Popularity data from Office for National Statistics, National Records of Scotland, Central Statistics Office, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence.
Sion by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Sion
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Sion
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.