Isobel Girl
How popular is Isobel?
#2,298 girl name in 2025
79 baby girls were named Isobel in the US in 2025, making it the 2298th most popular girl name.
Isobel popularity over time
| Rank in 2025 | #2,298 for girls (▲ 29 from 2024) |
|---|---|
| Babies in 2025 | 79 girls |
| 10-year trend | Falling (-15% babies vs 2015) |
| Earlier ranks | #2,088 in 2015, #1,991 in 2020 |
| Peak year | 2016 (129 girls) |
| Highest rank | #817 in 1916 |
| First recorded | 1894 |
| Boys vs girls (last 10 years) | 0% boys, 100% girls |
| Chance a classmate shares it | 0.1% in a class of 25 kids born in 2025 |
Isobel counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Isobel family of names ranked #1,716 for girls in 2025 (#1,837 the year before), with 86 babies in all.
| Spelling | Girls in 2025 | Share |
|---|---|---|
| Isobel | 79 | 92% |
| Isobelle | 7 | 8% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Isobel is most popular
Babies named Isobel per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
- Massachusetts: 0.2 per 1,000 (19 girls)
- Iowa: 0.1 per 1,000 (5 girls)
- Pennsylvania: 0.1 per 1,000 (20 girls)
- New York: 0.1 per 1,000 (31 girls)
- California: 0.1 per 1,000 (45 girls)
Isobel by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1890s | 42 | #1,053 |
| 1900s | 129 | #849 |
| 1910s | 366 | #817 |
| 1920s | 422 | #969 |
| 1930s | 190 | #1,237 |
| 1940s | 81 | #2,423 |
| 1950s | 51 | #3,695 |
| 1960s | 12 | #5,288 |
| 1970s | 13 | #6,361 |
| 1980s | 7 | #9,239 |
| 1990s | 270 | #2,402 |
| 2000s | 715 | #1,886 |
| 2010s | 981 | #1,660 |
| 2020s | 523 | #1,991 |
Girl names about as popular as Isobel
Questions
- Is Isobel a boy or girl name?
- Isobel is mostly a girl name. Over the last 10 years, 100% of babies named Isobel were girls.
- How popular is the name Isobel?
- 79 baby girls were named Isobel in the US in 2025, making it the 2298th most popular girl name.
- When was Isobel most popular?
- Isobel peaked in 2016, when 129 girls were given the name. Its highest rank was #817 in 1916.
- How many people are named Isobel?
- 3,802 babies have been named Isobel in the US since 1880. We estimate about 2,659 of them are alive in 2026, with a median age of 15.
- Where is Isobel most popular?
- From 2021 to 2025, Isobel was most common in Massachusetts, at 0.2 of every 1,000 girls born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.