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September

#6,080 in 2025Girls' name

Seventh month

September has been given to 2,203 babies in the U.S. since 1955. In 2025 it ranked #6,080 of 17,293 girls’ names in use. Its peak year was 1980, with 51 recorded.

Babies named September, 2025

1 in 166,000

September over time, 1880–2025

Girls
020406018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

September: meaning, origin, and history

Seventh month

English and month names

What September means

September means “seventh month”, associated with September.

Dictionary etymologyReferences, data & attribution

PIE word *septḿ̥ Etymology tree Proto-Afroasiatic *sṗɣ? Proto-Semitic *šabʕ-bor.? Proto-Indo-European *septḿ̥ Proto-Italic *septəm Latin septem Latin September Old French septembreder. Old English Middle English English September From Middle English, from late Old English, from Old French septembre, Latin September (“seventh month”), from septem (“seven”), which see; September was the seventh month in the Roman calendar.

Excerpt from Wiktionary: September (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

September is used in English. Its origins include English and month names.

September comes through Old French septembre and Latin September.

Pronunciation and spelling

In English, September is pronounced /sɛpˈtɛmbɚ/.

American usage and historical context

In the United States, 2,203 girls were recorded with the name September between 1955 and 2025. Its highest annual count was 51 in 1980; its best national rank was #1,974 in 1963.

Over 5 years its rank fell, from #4,346 in 2020 to #6,080 in 2025. Over 10 years its rank fell, from #4,837 in 2015 to #6,080 in 2025.

How common is September?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 166,000
20 of 3,315,165 births
Among girls only
1 in 80,400
<0.01% of girls
Rank, 2025
#6,080
of 17,293 girls’ names in use
Coin-flip room size
114,896 kids
Even odds of a second one

Where September sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

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.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 114,896 children born in 2025 and it's an even bet that one of them is another September. In a class of 30 the chance is Under 1%.

When Septembers were born

Half of everyone ever recorded as September was born before 1990 — so the typical September is around 35 today.

Median birth year
1990
About 35 years old
Biggest decade
1980s
18.2% of all use
Born in the last 25 years
33.6%
Spread across generations
Recorded since 1950
2,203
People you could plausibly meet
Choose a decade

1980s — 18.2% of all recorded uses (402).

Is September 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
−151
Places dropped
Rank vs 5 years ago
−1,734
Places dropped
Rank vs 10 years ago
−1,243
Places dropped
Births vs 10 years ago
0.69×
Fewer babies than then
Share of its own peak
39.2%
Peak was 1980 (51)
Years since peak
45
Years
Year-to-year steadiness
Shifting
22.6% average annual change
Best rank ever
#1,974
1963

Where September is used

Across 1910–2025, September was most concentrated in California — about 1 in 100,000 girls, against 1 in 306,005 across all states with data. It was least common in Texas (1 in —).

01 per 100,000

Most concentrated

  1. 1California1 in 100,000
  2. 2Colorado1 in —
  3. 3Georgia1 in —
  4. 4Illinois1 in —
  5. 5Michigan1 in —
  6. 6North Carolina1 in —
  7. 7Ohio1 in —
  8. 8Oklahoma1 in —

Shading is the share of that state's recorded girls 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. September has too little recent state data to map, so this covers all years from 1910.

September by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#6,080
Trend vs 5 yrs ago
Down 1,734
Best rank ever
#1,974
1963
Peak year
1980
51 that year
First recorded
1955
Last recorded
2025
All-time count
2,203
Count in 2025
20

Names similar to September

Matched on shared beginnings and endings, similar length, and comparable popularity.

SephoraDecemberNovemberOctoberTimberKymberKamberTymberCamberKimberSephiraSephanieDeamberEmberKeamberKemberTamberOktoberSepidehSephinaSephraKiamberSephorahSeprina

Names with a curve like September

Not spelling — timing. These names rose, peaked and faded in the same years as September, so they read as being from the same moment even when they look nothing alike.

RosamariaMariaelenaJoriHolleyHaydeeJoiTamarNidiaReenaLanaeMaryelizabethJaymie

Sibling names for September

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around September

Top names of 1980, September's peak yearThe 1980s in fullOther names that peaked in 1963Girls' names starting with S