Girls' name · peaked in 1956
Joni name popularity since 1925
29,502 babies born in the US from 1925 to 2025 were named Joni (97.7% girls, 2.3% boys). Half of them were born in 1964 or earlier, so the typical Joni is about 62 years old in 2026. Joni peaked in 1956 as the #204 name for girls, and it was outside the top 1,000 in 2025.
Key facts
- US babies since 1925
- 29,502
- Named Joni, 1925–2025
- In 2025
- Not top 1,000
- #1,803 for girls in 2025
- Girls / boys
- 97.7% girls
- 28,815 girls · 687 boys
- Most popular in
- Iowa
- 3.36× its national share
Peak year is the year Joni made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Joni births per year, 1925–2025
1956 was the biggest year for Joni both by count and as a share of all babies.
- Fastest rise: Between 1973 and 1978, Joni became 2.7× more common, from 1 in 6,310 baby girls to 1 in 2,340.
- Steepest fall: Between 1980 and 1985, its share of baby girls fell by 61%, from 1 in 2,190 to 1 in 5,590.
Shaded on the chart. Both compare Joni's share of all US girls five years apart, counting only years with at least 100 babies named Joni.
Decade by decade
Babies named Joni in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 0 | 0 | – |
| 1930s | 93 | 0 | #3,302 |
| 1940s | 435 | 5 | #1,343 |
| 1950s | 9,218 | 44 | #212 |
| 1960s | 8,274 | 59 | #339 |
| 1970s | 4,213 | 69 | #486 |
| 1980s | 4,166 | 65 | #614 |
| 1990s | 919 | 114 | #1,751 |
| 2000s | 463 | 133 | #3,990 |
| 2010s | 488 | 128 | #3,407 |
| 2020–25 | 546 | 70 | #1,803 |
Ranks count every name given to at least 5 girls that year, so they can go past 1,000.
Generation fingerprint
51.8% of babies named Joni from 1925 to 2025 were born in the Baby Boom years (1946–1964). The full split by generation:
Where Joni is most popular
The index compares Joni's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Joni.
| State | Index | Babies |
|---|---|---|
| Iowa | 3.36× | 1,094 |
| Nebraska | 3.05× | 549 |
| Utah | 2.26× | 493 |
| Kansas | 2.25× | 589 |
| Indiana | 2.03× | 1,234 |
Other spellings
Spellings that sound like Joni and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.
| Spelling | Girls | Peak year |
|---|---|---|
| Joni (this page) | 28,815 | 1956 |
| Jonnie | 4,835 | 1944 |
| Jonni | 1,293 | 1957 |
| Jonie | 1,235 | 1979 |
Names with a similar story
Of the other 1999 names on this site, these six had the share of babies closest in shape to Joni's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Joni.
Names from the same era
Other common names that peaked within two years of Joni (1956).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data