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Masa vs Mason

American parents have registered 345,931 Masons since 1880, against 545 Masas. Mason is still ahead, with 6,342 babies in 2025.

Babies given each name, 1880–2025

Births per year: Masa against Mason, 1880 to 2025 0 5k 10k 15k 20k 1880 1900 1920 1940 1960 1980 2000 2020

Masa Mason

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

Mason 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 1919, when Masa had 11 and Mason had 125.

Side by side

  Masa Mason
Total US births 545345,931
Most in one year 6619,619
Babies in 2025 366,342
Estimated living today 530337,000
Median age today 513
Peak year 20232011
Best rank 2,646th girls2nd boys
Rank in 2025 3,975th39th
First recorded 19191880
Girls / boys 533 / 123,348 / 342,583

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 Masons alive today are over 13; half the Masas are over 5. That is 8 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Both names abroad

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

Country Masa Mason
England and Wales 14339,620
Scotland 43,826
Ireland 112,386
Belgium 53639
France 10575
Switzerland 29 Maša120

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: Masa and Mason.