Jo
Recorded for both sexesBaby Boomer2025 rank
#4,028
up +219 places
2025 births
36
up +2 births
All-time births
179,057
0% of them in 2025
More common than
100%
of all archived spellings recorded for girls, by lifetime births for that sex
- Peak year
- 1954
- 8,052 births
- Best rank
- #51
- in 1947
- First recorded
- 1881
- #881 that year
- Last recorded
- 2025
- still in the data
- Average birth year
- 1950
- weighted by recorded births
- Years recorded
- 144 of 146
- with gaps
Top five years
- 19548,052#53Peak
- 19557,656#58
- 19537,513#54
- 19527,092#55
- 19566,953#69
Rank over time
Inverted scale — nearer the top is more popular. Unrecorded years are left blank, not drawn as zero.
Best rank #51 in 1947 · peak births 8,052 in 1954
Boys and girls
Births per year for each sex, on one shared scale. The girls' series is dashed.
● 1% boys■ 99% girls
1,854 boys · 179,057 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 Jo has ranked, decade by decade
The band spans each decade's best and worst rank; the line follows its best.