Isa vs Karsten
Isa and Karstencompared 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.
Norway · Boys
In 2025, Isa was ranked #213 and Karsten #191 among boys in Norway.
England and Wales · Boys
In 2024, Isa was ranked #252 and Karsten #5119 among boys in England and Wales.
Isa and Karsten over time
Isa and Karsten appear together in 2 published lists, across 40 years of shared records. Neither was ahead in more lists than the other.
In none of those lists did their order change and stay changed.
Karsten reached its own highest recorded position earlier in 2 of those lists, and Isa 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.
- Repeatedly exchanged positions
Isa and Karsten changed places 4 times in Norway · Boys between 1961 and 2025, ending at #213 and #191.
- Longest-running competitions
Isa and Karsten were both ranked in Norway · Boys for 31 years, from 1961 to 2025, ending at #213 and #191.
- Peaked in the same years
Both reached their highest recorded position in Norway · Boys within 2 years — Isa #170 in 2023, Karsten #147 in 2022.
List by list
Norway · Boys31 shared years, 1961–2025
Isa held the stronger position in 2 of those years, Karsten in 29.
Highest recorded here: Isa #170 in 2023, Karsten #147 in 2022.
The order between them never changed and held in this list.
Most recent shared year, 2025: Isa #213, Karsten #191.
England and Wales · Boys9 shared years, 1999–2024
Isa held the stronger position in 9 of those years, Karsten in 0.
Highest recorded here: Isa #252 in 2024, Karsten #1664 in 1999.
The order between them never changed and held in this list.
Most recent shared year, 2024: Isa #252, Karsten #5119.
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 | Isa | Karsten |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | Used for both boys and girls | male |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-SCT, IE, NO | GB-ENW, NO |
| Most recent popularity observation | Norway · Boys #213 (2025) | Norway · Boys #191 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Isa and Karsten both have 2 syllables.
- Both names have recorded usage in GB-ENW, NO.
How each name got here
Isa
Popularity journey
First recorded1961
First recorded at #471 among boys in Norway in 1961 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1961–2025
Highest recorded position: #170 among boys in Norway, in 2023 (recorded 1961–2025).
Norway · Boys
Most recent2025
Most recently recorded at #404 among girls in Norway, in 2025.
Norway · Girls
Karsten
Popularity journey
First recorded1945
First recorded at #129 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1945–2025
Highest recorded position: #110 among boys in Norway, in 1948 (recorded 1945–2025).
Norway · Boys
Most recent2025
Most recently recorded at #191 among boys in Norway, in 2025.
Norway · Boys