Isa
Recorded for both sexesGen X2025 rank
#1,717
up +256 places
2025 births
119
up +19 births
All-time births
3,433
3% of them in 2025
More common than
95%
of all archived spellings recorded for girls, by lifetime births for that sex
- Peak year
- 2025
- 119 births
- Best rank
- #411
- in 1881
- First recorded
- 1880
- #875 that year
- Last recorded
- 2025
- still in the data
- Average birth year
- 1979
- weighted by recorded births
- Years recorded
- 146 of 146
- unbroken
Top five years
- 2025119#1,717Peak
- 2018103#1,929
- 2022103#1,937
- 2024100#1,973
- 201495#2,059
Rank over time
Inverted scale — nearer the top is more popular. Unrecorded years are left blank, not drawn as zero.
Best rank #411 in 1881 · peak births 119 in 2025
Boys and girls
Births per year for each sex, on one shared scale. The girls' series is dashed.
● 48% boys■ 52% girls
3,142 boys · 3,433 girls, all time
Births by decade
Where the name's whole run sits, with the best and worst rank it held in each decade
Trajectory by decade
Where Isa has ranked, decade by decade
The band spans each decade's best and worst rank; the line follows its best.