Delta
Girl name · #2329 in 2025 · Very rare
How old is the name Delta? In official American birth records, Delta has been tracked continuously since 1883, giving it 142 years of documented American history.
Delta ranks #2329 among American girls' names as of 2025, with 78 newborns given the name that year. A decade ago it stood at #3842, so the name has been rising over the past ten years. Roughly one in every 23,077 girls born in 2025 was named Delta.
The 142-year story
Delta first appears in the Social Security records in 1883, when 7 girls received the name. Its peak came in 2019, when 136 girls were named Delta — good for #1569 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Delta per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Delta against up to 5 other names.
Uniqueness: will there be another Delta in class?
On our rarity read — which blends how common Delta is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Delta will likely be the only one in the room, with the occasional spelling-out as the price.
Where Delta is most common
State-level data for Delta is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Delta
Statistically, parents drawn to Delta tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Alita, Carlota, Vanya, Amila, and Aiyla.
AlitaCarlotaVanyaAmilaAiylaAdoraTheiaLenna
Rank history (last 25 years)
| Year | Babies named Delta | Rank |
|---|---|---|
| 2025 | 78 | #2326 |
| 2024 | 82 | #2265 |
| 2023 | 105 | #1890 |
| 2022 | 65 | #2661 |
| 2021 | 105 | #1885 |
| 2020 | 119 | #1704 |
| 2019 | 136 | #1569 |
| 2018 | 103 | #1925 |
| 2017 | 67 | #2597 |
| 2016 | 39 | #3849 |
| 2015 | 39 | #3842 |
| 2014 | 28 | #4892 |
| 2013 | 16 | #7372 |
| 2012 | 16 | #7456 |
| 2011 | 8 | #12153 |
| 2010 | 8 | #12276 |
| 2009 | 11 | #9975 |
| 2008 | 5 | #17504 |
| 2007 | 6 | #15491 |
| 2006 | 14 | #8237 |
| 2005 | 19 | #6245 |
| 2004 | 15 | #7391 |
| 2003 | 15 | #7207 |
| 2002 | 5 | #15432 |
| 2001 | 12 | #8196 |
Frequently asked questions
How old is the name Delta?
In official American birth records, the name Delta first appeared in 1883 (over 142 years ago), when 7 newborn girls received the name. It has over a century of continuous American history.
Is Delta a popular girl name?
Delta ranked #2329 among girls in 2025 with 78 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #3842.
When was the name Delta most popular?
Delta peaked in 2019, when 136 American girls received the name (ranked #1569 that year). Since 2019 the name has declined from that high.
How rare is the name Delta?
In 2025, roughly 1 in 23,077 newborn American girls was named Delta. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.