Humanverse

Lydia vs Lydon

American parents have registered 187,317 Lydias since 1880, against 244 Lydons. Lydia is still ahead, with 2,692 babies in 2025.

Babies given each name, 1880–2025

Births per year: Lydia against Lydon, 1880 to 2025 0 1k 2k 3k 4k 1880 1900 1920 1940 1960 1980 2000 2020

Lydia Lydon

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Lydia has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 1964, when Lydia had 1,183 and Lydon had 14.

Side by side

  Lydia Lydon
Total US births 187,317244
Most in one year 3,65214
Babies in 2025 2,692under 5
Estimated living today 139,000240
Median age today 2318
Peak year 20141964
Best rank 84th girls2,205th boys
Rank in 2025 92ndunranked
First recorded 18801964
Girls / boys 187,039 / 2780 / 244

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Lydias alive today are over 23; half the Lydons are over 18. That is 5 years between them: two names in use at the same time, worn by two different generations.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Lydia Lydon
England and Wales 18,67041

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Lydia and Lydon.