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Mona vs Monica

American parents have registered 252,257 Monicas since 1880, against 45,818 Monas. Monica is still ahead, with 371 babies in 2025.

Babies given each name, 1880–2025

Births per year: Mona against Monica, 1880 to 2025 0 2k 4k 6k 8k 1880 1900 1920 1940 1960 1980 2000 2020

Mona Monica

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

Of the 146 years in which either name was published, Monica for 82 years and Mona for 64 years. The lead changed hands 7 times.

Side by side

  Mona Monica
Total US births 45,818252,257
Most in one year 1,2316,619
Babies in 2025 61371
Estimated living today 29,000229,000
Median age today 6446
Peak year 19571979
Best rank 242nd girls40th girls
Rank in 2025 2,778th736th
First recorded 18801880
Girls / boys 45,787 / 31251,274 / 983

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 Monas alive today are over 64; half the Monicas are over 46. That is 18 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 Mona Monica
Norway 12,93612,121
France 6,8402,775
Belgium 2,847287
England and Wales 4281,629
Ireland 1061,198
Scotland 12554
Poland 5106

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: Mona and Monica.