girls:
5 births since 1931
#5711 (0th percentile)
boys:
61 births since 1942
#4525 (1st percentile)
overall:
66 births since 1931
#7673 (1st percentile)
The name Costello is the #7,673 most popular name of all time in the U.S. on a gender-neutral basis, with a total of 66 recorded births since 1931. This represents the 0.8% percentile of name popularity (more popular than 0.8% of all names). For boys, it ranks #4,525 (1.3% percentile) for all time with 61 births since 1942. For girls, it ranks #5,711 (0.1% percentile) for all time with 5 births since 1931.
Costello first appeared in U.S. birth records in 1931 (1931 for girls and 1942 for boys). Birth data for Costello is available in 11 out of the 91 years between 1931 and 2021 (10 years for boys and 1 years for girls). The Social Security Administration only reports birth data for years in which the name was given to at least five children of the same gender.
The name Costello has been given almost exclusively to boys, with 92.4% of all recorded births being male. Interestingly, until around 1942, the name was more popular for girls (100.0% girls from 1931 to 1941), but since then it has been more commonly used for boys (100.0% boys from 1942 to 2021).
For boys, Costello reached its peak popularity in 1951, achieving the 1.0% percentile (ranked #602) with 6 births per million. The name was most common in 1951, with 6 births per million (ranked 1.0% percentile). There have been no recorded male births with this name since 2021.
For girls, Costello reached its peak popularity in 1931, achieving the 0.0% percentile (ranked #584) with 5 births per million. The name was most common in 1931, with 5 births per million (ranked 0.0% percentile). There have been no recorded female births with this name since 1931.
This chart shows the total number of births per million babies in each year for the name "Costello".
These names exclude other spelling variations of this name. View all variations of Costello.
These similar-looking names have spellings that are closest to the spelling of "Costello", in the sense that there are the fewest number of letter differences between the two spellings. These names exclude other spelling variations of this name. View all variations of Costello.
Our model has identified 4 different pronunciations for the name Costello. Click the play button under each pronunciation to hear it spoken aloud.
Our model is 43.9% confident that Costello is pronounced as kah-STEH-loh, which has 3 syllables. The next most likely pronunciation is kaw-STEH-loh, at 26.8% confidence, with 3 syllables.
If none of the pronunciations above sound right to you, could you please check whether any of these related pronunciations should be applied to the name Costello? These are pronunciations that other similar names use, but which are not currently associated with Costello. If you think any of these are valid pronunciations for Costello, please vote using the thumbs up button.
Our confidence scores estimate the likelihood that a particular pronunciation is the most correct for a given name spelling. These scores are derived from pronunciation dictionaries, manual verification, your feedback, and a fine-tuned large language model trained to generate name pronunciations.
For any given spelling, confidence scores across all identified pronunciations sum to 100%. However, these scores don't account for the possibility of valid pronunciations that our model hasn't identified.
The raw pronunciations shown (like K AA0 S T EH1 L OW0) use the ARPAbet phoneme system, a standardized way to represent English speech sounds. Each symbol represents a distinct sound in American English. Visit the ARPAbet Wikipedia page to learn more about these phonetic symbols.
Pronunciation audio is generated by an open source text to speech model that has been customized to adhere to pronunciations provided in ARPAbet format, but sometimes pronunciations that differ subtly will sound identical, particularly if the only difference is the level of emphasis on a syllable or a single vowel sound.
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