Kasia Girl
How popular is Kasia?
#5,409 girl name in 2025
23 baby girls were named Kasia in the US in 2025, making it the 5409th most popular girl name.
Kasia popularity over time
| Rank in 2025 | #5,409 for girls (▲ 203 from 2024) |
|---|---|
| Babies in 2025 | 23 girls |
| 10-year trend | Steady (-15% babies vs 2015) |
| Earlier ranks | #4,979 in 2015, #5,165 in 2020 |
| Peak year | 2002 (71 girls) |
| Highest rank | #2,285 in 2002 |
| First recorded | 1958 |
| Boys vs girls (last 10 years) | 0% boys, 100% girls |
| Chance a classmate shares it | 0.0% in a class of 25 kids born in 2025 |
Kasia counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Cassia family of names ranked #951 for girls in 2025 (#1,123 the year before), with 222 babies in all.
| Spelling | Girls in 2025 | Share |
|---|---|---|
| Cassia | 94 | 42% |
| Kaziah | 60 | 27% |
| Kasia | 23 | 10% |
| Kassia | 35 | 16% |
| Kazia | 5 | 2% |
| Kazyah | 5 | 2% |
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 Kasia is most popular
Babies named Kasia per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
- Illinois: 0.0 per 1,000 (5 girls)
Kasia by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1950s | 5 | #6,102 |
| 1960s | 28 | #4,493 |
| 1970s | 115 | #3,611 |
| 1980s | 246 | #2,972 |
| 1990s | 371 | #2,506 |
| 2000s | 551 | #2,285 |
| 2010s | 282 | #3,305 |
| 2020s | 127 | #5,165 |
Girl names about as popular as Kasia
Questions
- Is Kasia a boy or girl name?
- Kasia is mostly a girl name. Over the last 10 years, 100% of babies named Kasia were girls.
- How popular is the name Kasia?
- 23 baby girls were named Kasia in the US in 2025, making it the 5409th most popular girl name.
- When was Kasia most popular?
- Kasia peaked in 2002, when 71 girls were given the name. Its highest rank was #2,285 in 2002.
- How many people are named Kasia?
- 1,725 babies have been named Kasia in the US since 1880. We estimate about 1,696 of them are alive in 2026, with a median age of 25.
- Where is Kasia most popular?
- From 2021 to 2025, Kasia was most common in Illinois, at 0.0 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.