Casey vs Isabella
Casey and Isabellacompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.
Head to head
Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.
New South Wales, Australia · Girls
In 1999, Casey was ranked #100 and Isabella #8 among girls in New South Wales, Australia.
England and Wales · Girls
In 2024, Casey was ranked #1449 and Isabella #11 among girls in England and Wales.
New Zealand · Girls
In 2000, Casey was ranked #86 and Isabella #26 among girls in New Zealand.
Northern Ireland · Girls
In 2024, Casey was ranked #253 and Isabella #44 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2025, Casey was ranked #718 and Isabella #48 among girls in Republic of Ireland.
Scotland · Girls
In 2024, Casey was ranked #476 and Isabella #50 among girls in Scotland.
Casey and Isabella over time
Casey and Isabella appear together in 3 published lists, across 91 years of shared records. Isabella held the stronger position in more years in 3 of them, Casey in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Casey reached its own highest recorded position earlier in 3 of those lists, and Isabella in none. Each position is a place inside its own list, so this compares when they peaked and never how high.
Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.
How this pair is related
The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.
- One moved ahead of the other
In 2008, Isabella moved ahead of Casey in Northern Ireland · Girls — #61 and #64 the year before became #84 and #48.
- Repeatedly exchanged positions
Casey and Isabella changed places 5 times in Northern Ireland · Girls between 1999 and 2024, ending at #253 and #44.
- Mirrored each other
Over 36 shared years in Republic of Ireland · Girls, Isabella rose about as far as Casey fell — from #469 and #362 in 1978 to #718 and #48 in 2025.
- Longest-running competitions
Casey and Isabella were both ranked in Republic of Ireland · Girls for 36 years, from 1978 to 2025, ending at #718 and #48.
List by list
Republic of Ireland · Girls36 shared years, 1978–2025
Casey held the stronger position in 12 of those years, Isabella in 24.
Highest recorded here: Casey #95 in 2000, Isabella #41 in 2014.
The order between them never changed and held in this list.
Most recent shared year, 2025: Casey #718, Isabella #48.
England and Wales · Girls29 shared years, 1996–2024
Casey held the stronger position in 0 of those years, Isabella in 29.
Highest recorded here: Casey #109 in 2001, Isabella #6 in 2016.
The order between them never changed and held in this list.
Most recent shared year, 2024: Casey #1449, Isabella #11.
Northern Ireland · Girls26 shared years, 1999–2024
Casey held the stronger position in 6 of those years, Isabella in 20.
Highest recorded here: Casey #61 in 2007, Isabella #27 in 2019.
The order changed in 2008: Isabella moved ahead. In 2007 they stood at #61 and #64; by 2008 that had become #84 and #48.
Most recent shared year, 2024: Casey #253, Isabella #44.
Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.
Side by side
| Field | Casey | Isabella |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | Used for both boys and girls | female |
| Meaning | Not yet recorded | My God is an oath (via Elizabeth). |
| Origin | Not yet recorded | Spanish/Italian, via Elizabeth |
| Pronunciation | Not yet recorded | /ˌɪzəˈbɛlə/ |
| Syllables | 2 | 4 |
| Common variants / nicknames | Not yet recorded | Bella, Izzy, Isabel, Isobel |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Boys #118 (2025) | New South Wales, Australia · Girls #17 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 94/100 | 76/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | high |
What the data shows
- Isabella has a recorded origin (Spanish/Italian, via Elizabeth); Casey does not have one recorded yet.
- Casey has 2 syllables, compared with 4 for Isabella.
- A meaning is recorded for Isabella; Casey doesn't have one written yet.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ.
- The available evidence gives Casey a "medium" Data Confidence level and Isabella a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Casey
Popularity journey
First recorded1971
First recorded at #304 among boys in Republic of Ireland in 1971 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1997–2024
Highest recorded position: #61 among girls in Northern Ireland, in 2007 (recorded 1997–2024).
Northern Ireland · Girls
Most recent2025
Most recently recorded at #718 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls
Isabella
Popularity journey
First recorded1960
First recorded at #472 among girls in Norway in 1960 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1993–2025
Highest recorded position: #1 among girls in New South Wales, Australia, in 2007 (recorded 1993–2025).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #17 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls