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U.S. Births by Mother’s Age
Share of all U.S. births by the mother’s age, annual, %
Plays the chart through its history. Pauses are where the data set a record or moved most.
CDC National Center for Health Statistics, final birth-certificate data via CDC WONDER. Births in the United States to residents and non-residents, by the mother’s age at the birth. Shares are Palanor arithmetic on the NCHS counts.
How the age of motherhood in the United States has shifted since the mid-1990s. Each band is one age group’s share of the year’s births; together they make up every birth in the year.
What this chart reads·6 series
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- Share of U.S. Births to Mothers Under 20as “Under 20”latest 2024-12-31
- Share of U.S. Births to Mothers Aged 20 to 24as “20 to 24”latest 2024-12-31
- Share of U.S. Births to Mothers Aged 25 to 29as “25 to 29”latest 2024-12-31
- Share of U.S. Births to Mothers Aged 30 to 34as “30 to 34”latest 2024-12-31
- Share of U.S. Births to Mothers Aged 35 to 39as “35 to 39”latest 2024-12-31
- Share of U.S. Births to Mothers 40 and Overas “40 and over”latest 2024-12-31
Sources·6 sources
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Share of U.S. Births to Mothers Under 20. Source: CDC WONDER Natality databases (wonder.cdc.gov): 1995-2002, 2003-2006 and 2007 to the latest final year, from the National Vital Statistics System birth certificates compiled by the National Center for Health Statistics (NCHS). Read through the WONDER API, national figures only. Public domain; use does not imply CDC endorsement. WONDER's data-use restrictions apply: health statistical reporting and analysis only, and no count of 9 or fewer is published. Palanor checks monthly; NCHS adds a final year once a year.
Share of U.S. Births to Mothers Aged 20 to 24. Source: CDC WONDER Natality databases (wonder.cdc.gov): 1995-2002, 2003-2006 and 2007 to the latest final year, from the National Vital Statistics System birth certificates compiled by the National Center for Health Statistics (NCHS). Read through the WONDER API, national figures only. Public domain; use does not imply CDC endorsement. WONDER's data-use restrictions apply: health statistical reporting and analysis only, and no count of 9 or fewer is published. Palanor checks monthly; NCHS adds a final year once a year.
Share of U.S. Births to Mothers Aged 25 to 29. Source: CDC WONDER Natality databases (wonder.cdc.gov): 1995-2002, 2003-2006 and 2007 to the latest final year, from the National Vital Statistics System birth certificates compiled by the National Center for Health Statistics (NCHS). Read through the WONDER API, national figures only. Public domain; use does not imply CDC endorsement. WONDER's data-use restrictions apply: health statistical reporting and analysis only, and no count of 9 or fewer is published. Palanor checks monthly; NCHS adds a final year once a year.
Share of U.S. Births to Mothers Aged 30 to 34. Source: CDC WONDER Natality databases (wonder.cdc.gov): 1995-2002, 2003-2006 and 2007 to the latest final year, from the National Vital Statistics System birth certificates compiled by the National Center for Health Statistics (NCHS). Read through the WONDER API, national figures only. Public domain; use does not imply CDC endorsement. WONDER's data-use restrictions apply: health statistical reporting and analysis only, and no count of 9 or fewer is published. Palanor checks monthly; NCHS adds a final year once a year.
Share of U.S. Births to Mothers Aged 35 to 39. Source: CDC WONDER Natality databases (wonder.cdc.gov): 1995-2002, 2003-2006 and 2007 to the latest final year, from the National Vital Statistics System birth certificates compiled by the National Center for Health Statistics (NCHS). Read through the WONDER API, national figures only. Public domain; use does not imply CDC endorsement. WONDER's data-use restrictions apply: health statistical reporting and analysis only, and no count of 9 or fewer is published. Palanor checks monthly; NCHS adds a final year once a year.
Share of U.S. Births to Mothers 40 and Over. Source: CDC WONDER Natality databases (wonder.cdc.gov): 1995-2002, 2003-2006 and 2007 to the latest final year, from the National Vital Statistics System birth certificates compiled by the National Center for Health Statistics (NCHS). Read through the WONDER API, national figures only. Public domain; use does not imply CDC endorsement. WONDER's data-use restrictions apply: health statistical reporting and analysis only, and no count of 9 or fewer is published. Palanor checks monthly; NCHS adds a final year once a year.
Charts are drawn from Palanor's signal library and recomputed from source data on every view. Transformations (changes, indexing, year-on-year rates) are Palanor's.