In 2018, 63 is the most common age for an American (U.S.) Cecelia who is registered female with the Social Security Administration. It is the 1, 022nd most common female first name for living U.S. citizens.
― Anonymous User 10/15/2018
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This spelling was actually slightly more popular than Cecilia from the 1880s through the early 1900s. Cecelia peaked in 1907 at #174. That was not super popular, but it was a bit more popular than Cecilia at #214. However, Cecilia is now much, much less popular. It is way down at #738 as opposed to Cecilia's #265. (All of this information is taken from the social security website: www.ssa.gov/OACT/babynames).